got the vega runnin....

[mwbrasher]

i got the vega running.... but a little diss appointed... only went 1.7 in 60 ft... i'm running a 331 sbc... 780 holley... vac secondarys... 570 lift cam... holley strip domminator intake...turbo 350 manually shifted..5000 red neck converter...11.5 comp... 112 race fuel...great fuel pump... 9 psi through traps... but only a 11.87 et at 113 mph... i'm lost... any ideas????? im thinking that i'm not getting the seconderys to open?? thanks in advance... caveman... :? :? :? :?

[bbchevy]

!st thing is Ditrch that Vac.Carb and put on a 750-850 Double Pump Mech.sec.Carb.
2.Way to much OCTANE,105 would be Plenty!
What do you have for a Gear Ratio?
Later
G 8)

[mwbrasher]

thanks for the reply.... running a 5.14 gear with 14-32 mt slicks car weigs aprox 2600 thanks caveman :shock: :shock: :shock:

[bbchevy]

The GEAR is On the $$,and could even take more w/32 Tall tie in a 331"SBC,but change that Carb and you'll see Big Improvements!
Actually More Stall would'nt Hurt either..........?
Later
G 8)

[mwbrasher]

thanks for the reply... car went 1.7 in 60 ft... but only 113 mph??? maybe to high of fuel... was running 112.... maybe i should go bavk to around 102??? hoping for 1.5 in 60 ft and about 125 mph... what do you think???? thanks in advance!!!!..... caveman :? :? :?

[mwbrasher]

pulled carb appart... found 77 jets in pri... 80 in sec...went to 80 pri and 83 sec... had a yellow spring ... went to the lightest one holley has... do you think this will help??? :( :( :( thanks caveman

[bbchevy]

MAYBE...........?But,a Mech Carb would WORK Much BETTER!!!
Later
G

[JEFF69Z28]

MAYBE...........?But,a Mech Carb would WORK Much BETTER!!!
Later
USE VP110 RACING FUEL.
G

[mwbrasher]

thanks for the reply... i'm just trying to test.. before i spend the money on an 850... i know the vac carb isn't intended to be an all out race carb... but i have it...lol..... once i know for sure... that is the problem... then i;ll replace it... trying not to change a lot... one thing at a time... thanks again... caveman :shock: :shock: :shock: :shock:

[mwbrasher]

well guys... i bought a 750 double pumper... all done up... 50 cc acc pumps etc... going to try it fri nite...... hope it does a lot better......seems like it has A LOT more power.... thanks guys!!!!!! :) :)

[bbchevy]

GREAT!!!
Later G 8)

[melson3086]

What size jets is in the new carb

[mwbrasher]

hey pat.... give me a call... 80... 84... mark 8) 8) 8)

[contagious]

The 50 cc pumps may hurt the 60'.Thats a lot of fuel to burn with starting line rpm.?Just enough not to stumble is all you want for the best 60'.

[mwbrasher]

well went to the trac.... bad day... first run went 1.6 ... better 60 ft...found that the carb linkage moved... crap.....next run.. better 1.59... alt quit working... next run .... i thought it was running great... sounded like i had the thing realey wound up... not.... 5500 rpm"s.... found that the old school way of listen till it sounds "right ... then shift"... not..... motor needs to be at 7000 to run right.... soooooo.. bought a new "elect tach with shift lite!!!!!!!..... back to the drawing board.... will try again soon....... thanks for being understanding... with us older guys!!!.. thanks caveman :? :? :?

[mwbrasher]

well ... we are going to the nastalga drags here in tulsa on sat the 24 ... with any luck we should be ready... will report after we run.... hope for 10:99 or beter.... any sugestions?????? thanks in advance... caveman :? :x :x :x

[TheYellaBrick]

Suggestion; Peddle reeeeeeeely reeeeeely FAST !!

:D :D :D :D :D :D
OH ! And have a TON of FUN !

[mwbrasher]

well..... not so good.... seems the more i work on it the slower it goes... had timing set at 38... ran a 159 60 ft... thought it was to ... went far adv... went to 34... 178 60 ft.... set timing again to 36... went 178 60ft ...AND slowed down to a 11:90 at 113.45..... i am realley getting confused....i think i'm going to have it dyno'd... cars runs great...no stumble ... no flat spots... seems to run good through the lights.... no mph or et for what i've spent.... any sugestions are highley apperciated.... thanks...caveman... :? :? :? :?

[zipper06]

You can run 40 to 42 degrees with that small of an engine, i've run as high as 44 degrees with a 358" with tunnel ram and 660 ctr squirter carbs. in a 3,000 lb 66 Nova, it ran high 1.40's and 10.70's.

JMO

Zip.

[mwbrasher]

thanks zip.... i was going to run it at 40 ... but wasn't sure if you could "getaway" with it that high... i adjusted the timing by "ear" where it seemed to like it ... 46degrees ... i thought o hell no..... but you may be rite... it likes the timing.... thanks for the suggestion..... caveman 8) 8) 8)

[bbchevy]

thanks zip.... i was going to run it at 40 ... but wasn't sure if you could "getaway" with it that high... i adjusted the timing by "ear" where it seemed to like it ... 46degrees ... i thought o hell no..... but you may be rite... it likes the timing.... thanks for the suggestion..... caveman 8) 8) 8)
Please Tell me that its Not a Stock Cast,Balancer?
Because if that is So,then you NEED to Pull #1 Plug out and Find TDC?Then See WHERE the TDC Mark is on the Balancer,............?
This Could cause you to CHASE your TAIL!
Later
G 8)

[mwbrasher]

no sir it is a tci...rattler... when i dialed the cam in i made darn sure it was on tdc... i have an adjustable pointer off the timing cover... i'm lost... every thing seems ok ...just seems should have better et and mph... heck i thought it could be me... i put one of my freinds in it.... his car runs 10:20... got 11:72 out of it... he thought it ran 10:85...not ...like i said i"m lost!!!!!!! thanks caveman :? :?

[bbchevy]

no sir it is a tci...rattler... when i dialed the cam in i made darn sure it was on tdc... i have an adjustable pointer off the timing cover... i'm lost... every thing seems ok ...just seems should have better et and mph... heck i thought it could be me... i put one of my freinds in it.... his car runs 10:20... got 11:72 out of it... he thought it ran 10:85...not ...like i said i"m lost!!!!!!! thanks caveman :? :?
OK?
How about the Timing Components?Did you Install a Offset Button to degree the Camshaft?
Does it have a Adjustible Cam Gear?
You SEE wear I'm going?
Later
G 8)

[mwbrasher]

yes i did install a 4 deg advance bushing... cam gear is not adjustable....just a double roller chain... only have made about 9 passes on this motor.... maybe i'm expecting too much??...motor runs great... no issues except it seems like it should do better.... taking it to the dyno shop on the 5 of oct.... maybe he can get me in the ball park....thanks for your help... i realey appericiate it ... when i find it it will be some little thing i over looked... i will report back thanks.... caveman :? :?

[mwbrasher]

i was thinking maybe not enough motor... acording to wallace couculater...it is doing what it should... how about a small shot of nitrous.... maybe 100... what would i need to go 10:90.... thanks ...caveman :lol: :lol: :lol:

[bbchevy]

I Just ran the #'s,IF that LITTLE 331 is making 375HP @ the Flywheel?Then thats where the #'s fall!Theres ONLY 1 Way you make BIG HP with a Small Cube Motor,...................?LOTZZ of R's!
Is that 2600 w the Driver?
Its a Small Motor with Little Compression,just WILL NOT Addd up to Much HP!!!!!!
Later
G 8)

[mwbrasher]

thank bb for the info.... the car weighs 3000 with me in it... race ready.... the wallace couculater come up with these numbers.... car... 3000.... rpm...7200.....tire size....14-32...gear ratio.... 5:13.... et....11:72.and mph... 113... that is what the car run almost every time... i was told the wallace system is at the GROUND...NOT FLYWHEEL... the numbers i get show 367 hp at the ground.... maybe 100 shot of nitrous to get 10:90 ?????? thanks caveman :? :? :?

[bbchevy]

thank bb for the info.... the car weighs 3000 with me in it... race ready.... the wallace couculater come up with these numbers.... car... 3000.... rpm...7200.....tire size....14-32...gear ratio.... 5:13.... et....11:72.and mph... 113... that is what the car run almost every time... i was told the wallace system is at the GROUND...NOT FLYWHEEL... the numbers i get show 367 hp at the ground.... maybe 100 shot of nitrous to get 10:90 ?????? thanks caveman :? :? :?

I DONT do hardly any 1/4 stuff anymore,but will tell you?When I have a Car thats in the Low 6's to High 5's.It takes about 90 HP to go 1.5 tenths FASTER.Just run the #';s you want?And those Cal.Systems are REAL Close!
IF,it were Me????
BBCHEVY=9.90's!!!
Later
G 8)

[mwbrasher]

thanks BB.... i think you are right.... as long as it is consistant... was hoping for 10:90.... but it is doing all it can.... like the old saying..."no replacement for cubic inch displacement!!!"....... thanks for your help... caveman :) :) :) :)

[bigray]

(((( i adjusted the timing by "ear" )))) BUY A TIMING LIGHT,, !!!!!!! AND THEN CHECK THE TIMING AT 2200 RPM

[mwbrasher]

hey big ray... i've got a timing lite... that is what i used to set it at 38... was just saying i adjusted it by "ear ... where it sounded good"... found it was WAY ADVANCED....like 48... that is my problem... 34-38 it goes slower.... thanks caveman :? :? :?

[bigray]

hummm 48 and it still likes it, and it doesnt back lash the starter,, i would think its got the wrong balancer or the wrong pointer or something, i would pull the #1 plug and really check for TDC and make sure that TDC is in line with the pointer at 0 degrees or at least close to it,,

[mwbrasher]

well... went to the dyno today.... the car has 298.7 hp.... timing was at 30... set the timing to 38.... went 299.7 not enough differance to run that high of timing.... only gained 1 hp of torque... vang... the dyno guy said to run a much hotter plug and set timing on 32....the car will be dead on...also my fuel ratio was 13.3... at w.o.t..... the fuel is not burning...thats why a hotter plug... any more help would be great!!!! i'm open to suggestions... but the motor is only a " 331" c.i.... thanks caveman... :lol: :lol: :lol:

[mwbrasher]

hi every one.... well went to the races last week... changed the setting on the 4 kink... car runs consistant 1.59 60 ft and 11:70 at 112 to 114 mph car is pulling front wheels up about 6". on launch... do you think going to a tunnel ram and 2-660 center squirters would help lower my et.... any sugustions would help.... thanks caveman... :lol: :lol: :lol:

[csx8506]

what type of heads do you have? Have you had any port work done on them? What size primarie's and collector size? As far as your total ignition advance, if you don't run 38 to 40 degrees or more, as Zip said, your engine will not rev up quickly, everything else being equal.

[TheYellaBrick]

From what I've gathered over the years, although I could be waaay out in left field ;
Dual quad tunnels usually work best on high winding engines, consequently the airflow volume is way high. High flow heads and exhaust are instrumental in overall performance.

[mwbrasher]

hi all... i am running world product sportsman ll heads... 200 runner and 2.02 intake valve... with 5.14 gears ... through the lites at 7000 rpm...pulls all the way... no miss... just trying for a better et... thanks caveman :D :D :D