1.428 60' time with 9.65 et is my 60' time slow?

[bowler]

i ran my new car at woodburn 9-8-09 it ran 1.428 60' 3.993 @ 330 6.171 @ 1/8 at 112.95 mph, 8.056 @ 1000' 9.652 @ 1/4 mile with a speed of 139.42 and i lifted about 100' early my question is my 60' slow, my car is 2400# 109" w/b, strange struts (single adj.), rear susp. is 4 link with double adj. strange coilovers, 4 link intersect is about 50" out and 2" above ground, i have struts adjusted in the middle and the rear shocks are set in the middle on both compression & rebound. also the weight is close to 50-50 and my rear tires are hoosier 32.5x16.5x15 (co7) thanks for your help Bowler

[Tod74]

Maybe a little cause that's a light car but It is pretty close for your 1/8 mile time I think....Mine has only been on the track once with this combo but it 60' 1.31 and went a 6.1 in the eighth at 110 but I had shifter issues and got out of it a bit early by mistake( first mph cone) weighs 3200lbs

Did it hook?

[us7race]

How tight is the converter?

[curtisreed]

i ran my new car at woodburn 9-8-09 it ran 1.428 60' 3.993 @ 330 6.171 @ 1/8 at 112.95 mph, 8.056 @ 1000' 9.652 @ 1/4 mile with a speed of 139.42 and i lifted about 100' early my question is my 60' slow, my car is 2400# 109" w/b, strange struts (single adj.), rear susp. is 4 link with double adj. strange coilovers, 4 link intersect is about 50" out and 2" above ground, i have struts adjusted in the middle and the rear shocks are set in the middle on both compression & rebound. also the weight is close to 50-50 and my rear tires are hoosier 32.5x16.5x15 (co7) thanks for your help Bowler

The problem could be that you traveled forward in time to make this pass. :lol: :lol: My car 60s in the mid 1.30s running similar 1/8 mile times and speeds but my car doesn't run the back half like yours. My best 60 is 1.33 and best 1000' 8.18.

Curtis

[suicidebomb]

Man Curtis, I'm glad you straightened me out, I couldn't figure out if he was a time traveler, or a clairvoyant.

[bowler]

my converter is a 8" continental 5000 stall (fresh), sbc 393" (3.650 stroke & 6" rods), 4.155 bore. i sure would like to get it in the 1.30's. thanks Bowler

[TS1955]

What gears do you have in the rear-end?

TS1955

[curtisreed]

I think the 1.30s are there to be had with possibly some suspension tuning, I'm not a great chassis guy but some on here are. You might give up all you can think of on your setup, motor and chassis, shock settings also. Does you car carry the front tires, leave straight out? Sometimes it is the small things that will help someone give you something to go with.

We have a 66 nova that runs comparable times at 2700lbs. It runs 1.29-1.33 depending on the track and weather.


Curtis

[johnracer]

I'd think mid 1.30's are doable. I'm not a chassis guy either, but I've learned a lot with my own car. IMO, your intersect is way too low and a litttle long for a small block's torque. I'd move it up several inches and back a couple if you can. My vette with a 406, would 60 pretty slow with a long and low ic......once I got it right, it ran low 1.30's and mid nines in the 1/4 @ 140ish.

[bowler]

i have 4:56 gears, leaves straight, and i got pictures and it does not look like it pulled the wheels (very good track) at woodburn they have a class called roadsters & dragsters no electronics & pro tree (4 tenths) it was hard to get a good reaction time they did say i could deep stage, i will change the instant center, the rear coilovers are strange double adjustable both settings are in the middle next time i will also try tuning with shocks. thanks again Bowler

[curtisreed]

Just remember make one change at a time.

Curtis

[oldandtired]

Just remember make one change at a time.

Curtis
x2.
Dave

[itsabird]

I think johnracer hit the nail on the head, sounds like you need a little more hit, i am guessing, that tires are moveing up into the wheel wells, rather than smacking the track, shorter and higher ic will get you there, don't for get shock adjustment, looking at the 60' vs 330, you are close, once you get the slicks planted at the hit, i think you will see some good numbers. jmo

[bowler]

http://img11.imageshack.us/img11/5456/imgl5210.th.jpg (http://img11.imageshack.us/i/imgl5210.jpg/) Curtis heres a picture of my 40 willys at woodburn. bowler

[johnracer]

THAT is freakin' cool!! I've never seen a Willy's roadster! Any more pics?

[curtisreed]

http://img11.imageshack.us/img11/5456/imgl5210.th.jpg (http://img11.imageshack.us/i/imgl5210.jpg/) Curtis heres a picture of my 40 willys at woodburn. bowler

Doug that is too cool. Not many people have something different but you definately do. Old school and new at the same time. I wish we were closer together I would love to look it over. And you built it yourself, awesome.

Curtis

[itsabird]

very cool, do you have a static side view, if so can you post a pic.

[bowler]

thanks for all the nice comments, i had fiberglass dave (ca.) cut the top off his coupe body and had a body man out of work do the body work & a painter also out of work had a spray booth in his shop & he painted it, it has not been buffed yet (next week), i have more pics. if i can get my wife to down load, if i try i might need a new computer as my shotgun is close by! (to old) thanks again Doug

[bowler]

http://img266.imageshack.us/img266/4203/095x.th.jpg (http://img266.imageshack.us/my.php?image=095x.jpg)http://img512.imageshack.us/img512/1968/dscn0690e.th.jpg (http://img512.imageshack.us/my.php?image=dscn0690e.jpg)this is what i got from suncoast race cars (chassis kit), second pic is before i installed windshield. bowler

[itsabird]

yeah man, printed that will put it on my wall of fame :)

[curtisreed]

http://img266.imageshack.us/img266/4203/095x.th.jpg (http://img266.imageshack.us/my.php?image=095x.jpg)http://img512.imageshack.us/img512/1968/dscn0690e.th.jpg (http://img512.imageshack.us/my.php?image=dscn0690e.jpg)this is what i got from suncoast race cars (chassis kit), second pic is before i installed windshield. bowler

A working door :D :D it just gets better with every pic.

[elkymann]

If you could get some video on your roadster that you could see what the rear of the body/chassis is doing, you can start the learning curve to getting this into the 1.30ft range pretty quickly.

Just by the info you supplied, you have the power, gear seems good enough for your weight too. IMO, I would start with the rear shock settings with changing from a 50% setting on the compression and go stiffer and watch your 60ft's, once you start dropping down keep adjusting until your best 60ft goes away, then go back to the last setting or your best 60' setting and then start on the rebound or extension of the shock, and that setting should be in the softest setting to start out with and work with that going stiffer again until you see moe drop in 60', seems like you may be too stiff on extension. One click at a time, and yes, it will take some time, fuel, and moe money for fuel but if it all works, it may pay for itself later when you go rounds :D

Your I/C does sound a little low and not very far out, but try the shock adjustments first, one change at a time with each direction EXT/COMP and log down your results so you have this info to go back too. I am gaining knowledge on chassis's but your roadster is a little lighter than my 3600lb Elky and I used to hit 1.40 60's on a 10.5 tire running 9.90-9.80 at over 136mph.

If you can't get better 60's with shock adjustments, you may need to adjust your lower bars, and try going up 1 hole on the front bracket only.

Wish we could see a few pics of the rear tires on the launch and what the back end of the chassis is doing, this may help out a bunch.

Go to the 4 link basic post on the top of this page and read this info., you should pick up some very good useful info from a few of these guy's thoughts. Good luck and keep us posted.

Elkyman
John

[bowler]

John thanks for your in put, i raced at madras oregon sat.- sun. it is a 1/8 mile and around 3000' elevation it was in the 90's. i did raise the front lower 4 link bar 1 hole, this brought the intersect back to 45" (from 52") and up to 5 1/2" off ground, i had run there in early august 3 runs 60' were 1.528-1.503 this time 4 runs were 1.516-1.489 air pressure was 6 1/2# sunday i put a stop on the throttle to slow down and see if i could be better on the lights and i was better but round 1 it ran a tenth quicker! break out. i will be running this weekend at champion dragstrip in white city or. (1/4 mile) oldies race & run in roadster-dragster class 4 tenths pro tree will post results, now i will do as you said and start on the shock settings. i will try to post a picture from last saturday at madras. thanks again bowler

[bowler]

http://img136.imageshack.us/img136/1142/08242009120034pm.th.png (http://img136.imageshack.us/my.php?image=08242009120034pm.png)
heres the picture from sat. not sure what round it was, first run everybody spun. i hope by labor day weekend (div. 6 finals) i can get a video of a run. bowler

[johnracer]

Cool! Don't be afraid to drop the tire pressure though. What does it weigh? The lighter the car, the less pressure you'll need. My car spins like crazy with 6.5lbs. It weighs 2200lbs with me in it....and I usually run 4.5-5lbs. Sometimes more if the track is really good.
I still think your car is awesome!
Later,
Johnny

[bowler]

Johnny the car weights 2400# with me in it (200#) using 4 corner bathroom type scales hope to get accurate weight this weekend, 47% on front 53% on rear, my rear tires are hoosier 32.5x16.5x15 c07 hoosier told me these are old pro stock type tires not sure of the sidewall stiff or soft?i will call hoosier to make sure. johnny are yours stiff or soft? thanks bowler. went to hoosier web site and my tires are not stiff or soft or light weight the hoosier part #18300c07

[johnracer]

My tires are soft sidewall. Some feel that a car 2200lbs and up needs stiff sidewall tires. I disagree. Every car is different.
A buddy of mine has a 72 Chevelle, 2800lbs, 565 ReherMorrison, has run 9.08 @ 148mph up here in Colorado, around 7000ft that day. He's tried stiff sidewalls and it just spins, so he runs soft........6.5lbs most of the time.
Are your tires old? I mean age, not number of runs.
If it was me, I'd start with 5 1/2-5 3/4lbs next time out and see what it does. If it shakes or handles weird, go up. JMO
Johnny

[bowler]

changed 4 link to 45" intersect and 5 1/2" off ground, went to champion (about 2000' in mid 90's) last weekend got in 6 runs i dropped air to 6#-5 3/4# and 5 1/2# with no problems, deep staged had 1 run i didn't get in (257 light) others were 009, 028, 018, first round i raced a dragster i staged & he went in to deep had to wait while he backed up & restaged i had a 221 light he had a .931! i won, second i had a 044 against a 166 but the car ran 10.453 on a 10.22 dial. 60', et & speed 1.61, [email protected], 1.55, [email protected], 1.56, [email protected], 1.56, [email protected], 1.64 first rd. lifted, 1.53, 10.45 @125.54 i had adjusted the throttle stop bolt out 2 turns because of the 135 mph (was wearing my 1 layer jacket). still seems slow off line, i'am suppose to get a video but not sure when. i did weight the car with out me in it 2150# plus 200#, i have 2 more races this year i'am not sure that my converter is good? over this winter i will have it checked out.bowler

[zipper06]

Doug, i definately think you have converter problems, i run in the mid 1.40's with my Malibu and it weighs 3200 lbs. plus and only 377" with a 5500 converter, leaving at 4200 on the trans brake. That's with 14X32's and a 5.43 gear.
Either that or you're spinning like a big dog.

JMO

Zip.

[bowler]

Zip it is not spinning off the line! in my woodie the last race with it it ran 9.60's @ 135 mph & 7500 rpm (left the line hard) i sent that converter to continental and it was damaged, i know something is not right, in this car i don't have a playback tach. this car i put accel 300 ing. box & coil, i have the 6a box & coil that was in the woodie and will change it out before my last race just to see if there is a difference. this weekend @ woodburn (cool weather) will see if it will run 9.60's. thanks bowler

[zipper06]

Good move on both parts, Continental is a good converter, Marv Ripes/A-1 trans has been useing them for yrs, i ran one of his PG's and their converter back in the 80's. I don't know anything about the Accel ing. always been an MSD person. Good luck this weekend.

Zip.

[bowler]

ZIP i got 1 run in today ran 9.79 @ 137, with 1.431 @ 60'a lean miss? so i went up to 96 jets, can't wait till saturday although rain is forecast. i was told today by the nhra that they chose my car as best engineered!!!!! i could not believe it. i'll try to update this post saturday bowler; well saturday was rain in am, changed jets tried to make a run and broke the throttle linkage my fault! so sunday am more rain finally got to make a run in eliminations had no idea for a dial put 9.74 the car still had a miss and slowed to 9.94 @134 & 1.441 @ 60' and i had a bad red light, my autometer tach does not read right & with the miss i will pull the accel 300 box & coil & put the msd 6a & coil that was in the woodie i know it works. also going back to my 92 jets. bowler

[zipper06]

Nice respect on the (best engineered) looks like you dropped about .015 on the 60' i'm sure you can get in the 1.30's when you get it running good. Good luck on the next time out, man i know about the rain, it's been raining here almost every raceday.

Zip.

[bowler]

http://img12.imageshack.us/img12/6393/imgl9321.jpg
By willy40 (http://profile.imageshack.us/user/willy40), shot with Canon EOS-1D Mark III (http://profile.imageshack.us/camerabuy.php?model=Canon+EOS-1D+Mark+III&make=Canon) at 2009-09-14http://img180.imageshack.us/img180/8114/imgl8429.jpg
By willy40 (http://profile.imageshack.us/user/willy40), shot with Canon EOS-1D Mark III (http://profile.imageshack.us/camerabuy.php?model=Canon+EOS-1D+Mark+III&make=Canon) at 2009-09-14
heres a couple pictures of the cars rear tire at launch, i still have not got a video trying. (air pressure was 5 3/4# or 5 1/2#) at white city. going to madras this weekend i'am going to try a different 4-link position to see if there is a + or -. bowler

[curtisreed]

Hey Doug,
When you say you adjusted the throttle stop bolt, what exactly are you talking about? SLE, or a bolt that limits wide open throttle?

Curtis

[bowler]

Curtis i welded a plate on the end of a 3/8" course thred bolt this stops the gas pedal at white city i backed it out 2 turns and it still ran 135 so i backed it out 2 more turns and it slowed 2 tenths and slowed 10 mph, won't do that again!

[curtisreed]

I just reread that last night and it made me start thinking, if you are not leaving wide open throttle that will slow your 60' times a bunch. Have you ever run the car through the early part of a run wide open, or did I miss that before?

Curtis

[bowler]

Curtis only twice have i tried to slow it down, once i made a 1"spacer to stop the gas pedal and it ran 6.90, 6.91, 6.91 then first round it ran 6.81!. the other time was at white city when i used the bolt to slow it down, all other runs are wide open throttle, i want to adjust the 4 link intersect point up and out for this race to see if there is any difference, right now it is set at 5 1/2" up and 45" out, what do you think?. i also have installed a msd 6a box & coil out of my old car. will post results monday thanks Doug

[curtisreed]

Sounds like a plan. I wish I were more versed in suspension but I would just be a WAG on my part to say one way or the other. I try my best not to shoot my mouth off about things I have no good grasp of.

Curtis

[zipper06]

Doug i could be wrong but that last photo, looks like it's hitting the tires pretty hard and probably wadding them up for the first few feet costing you some 60' times. I know the prostock guys count on wheel speed, by letting the clutch slip a little and the tires spin a little to get the 60' down. If it were me i would put a little more air in the tires too keep them from wadding up, which happens with a soft sidewall tire. I run 10.5 lbs in a 3250 lbs car to keep that from happening. My car might spin one rev on the line but it leave pretty hard, usually mid 1.40's. Maybe the CG adjustment will cut back on the tire hit, but i think with the wadding of the tire you may be losing foot print.

Not an expert,

JMO

Zip.

[itsabird]

yep, on hitting the tires to hard, more air would help, if you have double adjustible shocks, try stiffening rebound, and softening compression a little, that is if you use that intersect point.

[bowler]

i ran at madras sat. & sun., put the msd 6a in now my tach reads correct and the shift light works! set it at 6900 rpms, sat. temps in mid 80's with clouds air was 4500', ran 1.484@60 and [email protected]: 1.505@60' and [email protected]; 150.4@60' and [email protected], first round 1.513@60' lifted; round 2 1.485@60' lifted; round 3 1.452@60' ran 6.465 @97 mph ! break out. sunday backed compression off 2 marks (rear shocks) weather was clear and cool ran1.462@60' [email protected]; and 1.486@60' and [email protected]; and 1.460@60' and [email protected]; round 1 red light 1.492@60' and [email protected]. ran both lanes with a small difference between them, i tried 7# air then went to 8# after first run (sat.) then went back to 7# for the rest of the race, it was a race both days so its hard to play with the air and shock settings. next race 2 weeks and i'am going to put a delay box in it and try s/pro. bowler

[itsabird]

did you stiffen rebound? if not next time out, you may want to try that also.

[TopspeedLowet]

i ran my new car at woodburn 9-8-09 it ran 1.428 60' 3.993 @ 330 6.171 @ 1/8 at 112.95 mph, 8.056 @ 1000' 9.652 @ 1/4 mile with a speed of 139.42 and i lifted about 100' early my question is my 60' slow, my car is 2400# 109" w/b, strange struts (single adj.), rear susp. is 4 link with double adj. strange coilovers, 4 link intersect is about 50" out and 2" above ground, i have struts adjusted in the middle and the rear shocks are set in the middle on both compression & rebound. also the weight is close to 50-50 and my rear tires are hoosier 32.5x16.5x15 (co7) thanks for your help Bowler
If you have not yet resolved this cars behavior off the line yet, I recommend raising the IC at least 4" higher than it is now. If you are not guessing where the IC is, then that long wheel base and with a mouse power (I presume) will need a raised IC be able to plant your tires thru the 60' . If you know what your crank height is as well and it is much at all below 11" then you will have a hard time getting your car to hook with repetition at your power level and wheel base. Your car was likely set up for over 1000 HP with 2" off IC, the 50" is short for big power but a mile long with a setting at 2" off the ashephalt. If you raise the bottom bar one hole in the front and raise the front of the upper pipe at the same time this will raise the IC and make the 50" IC seem shorter to the car than it does now. Shortening may not be the best path with that long 108" WB. Work with the height first then the rebound on the shock to get control on the big end.
johnracer has a roadster with a shorter wheel base than yours and seems happy with his wally winning roadster after raising his ride height to raise the crank higher and raised his IC to get his to react better.
Bruce

[johnracer]

i ran my new car at woodburn 9-8-09 it ran 1.428 60' 3.993 @ 330 6.171 @ 1/8 at 112.95 mph, 8.056 @ 1000' 9.652 @ 1/4 mile with a speed of 139.42 and i lifted about 100' early my question is my 60' slow, my car is 2400# 109" w/b, strange struts (single adj.), rear susp. is 4 link with double adj. strange coilovers, 4 link intersect is about 50" out and 2" above ground, i have struts adjusted in the middle and the rear shocks are set in the middle on both compression & rebound. also the weight is close to 50-50 and my rear tires are hoosier 32.5x16.5x15 (co7) thanks for your help Bowler
If you have not yet resolved this cars behavior off the line yet, I recommend raising the IC at least 4" higher than it is now. If you are not guessing where the IC is, then that long wheel base and with a mouse power (I presume) will need a raised IC be able to plant your tires thru the 60' . If you know what your crank height is as well and it is much at all below 11" then you will have a hard time getting your car to hook with repetition at your power level and wheel base. Your car was likely set up for over 1000 HP with 2" off IC, the 50" is short for big power but a mile long with a setting at 2" off the ashephalt. If you raise the bottom bar one hole in the front and raise the front of the upper pipe at the same time this will raise the IC and make the 50" IC seem shorter to the car than it does now. Shortening may not be the best path with that long 108" WB. Work with the height first then the rebound on the shock to get control on the big end.
johnracer has a roadster with a shorter wheel base than yours and seems happy with his wally winning roadster after raising his ride height to raise the crank higher and raised his IC to get his to react better.
BruceHey Bruce! Wassup? Thanks to you, yes I'm very happy with mine! Currently the car is WAAAY better than I am though. I need just a little luck.........you wouldn't believe how many times I've lost races by just a few thou this summer! Dang good racing, but the win lite keeps coming on in the wrong lane........good to hear from you
Johnny

[johnracer]

Hey Doug, is that your pic on pg 62 of the latest National Dragster? Very cool!! Congrats,
Johnny

[TopspeedLowet]

Wow Doug, aren't you something. Best engineered car award! That is great Doug. Johnny has a great eye doesn't he!
Good call John.
John, Doug is tightening the back spread to help his reaction like you did on yours. Doug is not scarred to change his 4 link and knows his car very well. I am confident he will have it right where the wants it to be soon, if he has not already. You both are a pleasure to talk to about chassis set ups because you both actually do them and don't just take opinion poles on changes.
Bruce

[bowler]

Johnny thats me! thanks again Bruce raced, at madras this saturday cloudy and cold in the 40's they hot lapped us to try and beat the rain, (sunday rained out) i used a delay box for the second time ever first run let go of the button and nothing happens? i let off the gas oh crap nailed it had a .567 spun and ran [email protected] run 2 a .488 red ran [email protected] run 3 .560 ran [email protected] run 4 first round a nice .673! ran [email protected] round 2 .570 ran [email protected] fianlly ran someone that could cut a light and my day was over my 60' were (thru out the first one) 1.468, 1.421, 1.454, 1.457. with 6 1/2# air, just proves you can't teach old dogs new tricks! even with a delay box i can't cut a light i had a friend run it for t/o and he had a .518 light! i'am done for this year, but i will stay with the delay box also i'am going to sell the donovon block, oil pan & crank so i can build a 434" or a friend has a bbc fresh this year that dyno'ed at 825hp ran 920's @ 3400#. next year will be fun Bowler

[johnracer]

Definately stick with the box. They're not magic and take time to get used to it. Personally, I think the bigblock would be the ticket. I've always run run smallblocks until I got my 522 and I probably won't go back. What a difference!! It just keeps on pullin!!
Congrats again,
Johnny

[bowler]

just fired up my new motor last night, first time out will be Boise Idaho's oldies race June 5-6 this motor is a Dart block with a compustar 4" crank 6" h beam rods & JE pistons 58 cc AFR heads suspose to be 14.7 to 1 on gas, maybe i'll see those 1.30's @ 60'. bowler

[curtisreed]

Ready to see the numbers that puts up. Good luck. What kind of air do you guys see up there this time of year?

Curtis

[suicidebomb]

Thin air, high altitude thin air. LOL

[bowler]

ran the car at Boise Idaho this weekend with new sbc i'am about 100# heavier then with the aluminum donovon, and finally got in the 130's @ 60' although best was a 1.395, first full run was 1.402@60, [email protected] run2 1.407@60', [email protected] run3 1.395@60' 9.572 these were on sat. 70's last run had a overcast, sunday was cool & overcast only got 1 run at 1/8 mile it was 1.413@60' 1/8 was [email protected] first rd. 1.397@60' [email protected] got the win only to have a dead battery for the next run(lost the alternator belt) i still feel i'am losing some et in the 60'?.

[curtisreed]

Doug, I don't think you are super far off. I now know that my car is 2050lbs with me in it, I have 4.88 gears. So you have 350lbs more and less gear than I have. Here are 3 runs from last weekend in less than great air.

1.377 1.367 1.403 1.381

3.974 3.952 3.981 3.966

6.215 6.188 6.201 6.200

108.52 107.62 109.44 107.95


Curtis

[zipper06]

Doug, we've been friends for 3 or 4 yrs, and i'll be the first one too tell you i don't know what's wrong with your car, but there's definately more on the table on the 60' times. Below i've posted a couple runs with a car that i built the motor in and the other car is a friend. It's a Luv truck with a 434" on 200 shot of nitrous the Biscyne has a 468" pump gas street motor and if you look at the right hand count down the Biscyne is the #3 car it has less than 1.39 60' times it weighs 3700lbs without the 200lb driver,the Luv truck has has 1.27 60' times it weighs 2550lbs.It's a true 10.5 tire truck.
My thinking is that your car is not hitting the tires hard enough, but i don't know if that converter or launch RPM I'm not smart enough too make that call, but i'm sure some of the chassis experts have the answer
The left ticket is motor only on the Biscayne

Zip.

http://img.photobucket.com/albums/v515/zipper2/Ronnies66Biscyne001.jpg



http://img.photobucket.com/albums/v515/zipper2/BatonRougeMarch2010ET-1-1.jpg

[bowler]

could the rear tires be to big? hoosier 32.5x16.5x15 c5 they are almost 17 1/2" thred at 6 1/2#, i will run at Madras drag strip this weekend 1/8 mile and will try different shock settings & air pressure thanks Doug

[curtisreed]

I'm running 16.5-33 Hoosiers w/6 3/4lbs of air. The reason I'm running that big of a tire is the dragster friends of mine put about 100 runs on them and then I get them free :D I have been thinking about buying a set of the 14.5-33 lightweight Hoosiers though.

Curtis

[johnracer]

Hey Doug, good to see that you are running again! I agree w/Curtis. With that big tire and 4.56 gear, you're probably pretty close. Personnally, I'd go with a 4.88 with that tire and weight and a small block. I figure you're probably turning 7000-7100rpm at that speed and a 4.88 should push that up to 7400 or so and knock about .03-.04 off the 60'....what is your stall speed with the 434? Cam specs and heads?
You could go with a lower 1st gear in your glide if you don't want to wind it that high. I had a 2.03 in mine with the small block and a 1.98 in it now with the 522......
Johnny

[bowler]

Johnny the stall is 5000, cam is a bullet roller 660/647, 278/286 @ .050. seperation at 108, heads were ported by darly white and are afr 227, brodix dominator intake with 1050, my wheels are alumastars 15x 16" wide looks like i might have to try to sell or trade for 15x15 or 15x14 to be able to run a 15" wide tire?. Doug

[johnracer]

With that long duration @ .050, I'd bet your torque peak is well above that 5000 stall, even with 434 cubes. I'd think 5500-5800 stall would make a huge improvement. I'd go with a shorter tire rather than narrower to give you more effective gear at launch if you decide to change tires.....jmo

Where did you end up with your 4-link?

Johnny

[bowler]

i talked to Bruce about my 4 link which was set at 43" out & 6 1/2" up he thought the i/c should be out a little more and the spred on the bars at the housing should be 10" so i adjusted it to 10" & the i/c is 50" out & 6" up. raced sat. 5 runs 60' were between 1.414-1.446 et were 6.135-6.218 (got hot in the afternoon) sun. i adjusted the rebound tight & loosen the compression 4 runs 60' were 1.389, 1.384, 1.400, 1.407 (these 60' were my best at Madras) et's were 6.104, 6.140, 6.124, 6.136. can't wait to run at woodburn, the car is very consistent (considering this track & heat) since i put the 434" motor in this year, one other thing i did check the stall while on the t/b it is 5000, thanks to all for your input Doug