View Poll Results: can it run 5s with the stock cam at 15psi
Voters: 23. You may not vote on this poll
will it run 5s with the stock cam??proven -yes it will
01-30-2012, 10:53 PM
#21
Funny you ask that. Ryank runs 5.90's and he has been 9.1x. It seems most turbo cars that run in the 5.80-6.0 range run in the 8.99-9.1x/9.20 range where nitrous cars that run 5.80-6.0 run 9.1x-9.3. N/A similar to the nitrous guys maybe a bit less in the 1/4. Comes down to power out the back door and converter efficiency too.
01-30-2012, 10:55 PM
#22
yay, another believer. everything i have read says it should be doable, even easy, but i dont see it happening often so that casts doubt.
how much would you say a stock lq4 with vic jr intake and good springs should make NA? about 375 at the flywheel?
i estimate the 4.8 was making 350 to 375 NA at the flywheel with the big cam
how much would you say a stock lq4 with vic jr intake and good springs should make NA? about 375 at the flywheel?
i estimate the 4.8 was making 350 to 375 NA at the flywheel with the big cam
01-30-2012, 11:34 PM
#23
I think you will run in the 5.70 range. Like already mentioned. You already almost broke 6 when on "paper" you shouldn't have. Also, people forget you are running E85 NOT 91 octane. That with a water injection....yeah I think you will get it. Shoot, I hope so. I am trying to dip in the 5's with my set up and mine will weigh 3600-3700 race weight. However, I am willing to go to 19lbs with a good tune. Hopeing I can also hit it at 15lbs. I am running a bigger cam though and my suspension worked great before. Not sure if it still will with the turbo's but hoping so. I had some low 1.30's before on 9" tires. I'm pulling for you.
Check out this thread. Similiar but with the 5.3 and dyno'd pretty damn good. https://ls1tech.com/forums/forced-in...ast-night.html
Check out this thread. Similiar but with the 5.3 and dyno'd pretty damn good. https://ls1tech.com/forums/forced-in...ast-night.html
i would have to be 60' ing like you also. i think it will take 1.30s and have to be exactly 3000lbs and not more and maybe 5.70s would be in the cards. can you imagine even 5.90s with a STOCK cam?
i nicked a couple of lobes on the old cam and decided to just chunk it.
why am i not getting a performance cam? im cheap.simple as that. also i want the low end torque of the stock cam so i can get up on the converter. and the best thing of course would be seeing peoples reaction at the track when you take a stock idling, quite car, and run 5s/low 6s.
this is one of my inspirations. hear how quiet that car is
http://www.youtube.com/watch?v=-_XkKhsTRRE
Alittle later it went a 5.64 @126 with forged pistons and rods/stock 799 heads/camshaft. 
05-29-2012, 07:06 PM
#27
quick update - without a doubt it will go 5s at 15psi. this weekend with the wastegate springs out, leaving at 2 psi and making 5psi boost, it went 6.50s at 103.
heck, it might go 5s on 12 psi, still on the stock truck cam.
i love the ls1 platform, turbos, and ALCOHOL
heck, it might go 5s on 12 psi, still on the stock truck cam.
i love the ls1 platform, turbos, and ALCOHOL
05-29-2012, 08:20 PM
#30
it is coming great now. just tune on the rich side and let the computer slowly lean it out to my target. i still have it at 4.1:1 afr at wot and i heard they make best power around 5.2:1 so there is some left but im happy with it so i will let it stay a bit rich.
the alky tuning window is HUGE and it adds a very noticeable amount of torque.
05-29-2012, 08:27 PM
#31
thank you buddy. good luck on your build. these things are beyond impressive.
it is coming great now. just tune on the rich side and let the computer slowly lean it out to my target. i still have it at 4.1:1 afr at wot and i heard they make best power around 5.2:1 so there is some left but im happy with it so i will let it stay a bit rich.
the alky tuning window is HUGE and it adds a very noticeable amount of torque.
it is coming great now. just tune on the rich side and let the computer slowly lean it out to my target. i still have it at 4.1:1 afr at wot and i heard they make best power around 5.2:1 so there is some left but im happy with it so i will let it stay a bit rich.
the alky tuning window is HUGE and it adds a very noticeable amount of torque.
Only if you got the spark though.
05-29-2012, 09:48 PM
#33
Launching!
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Say what?? When did you switch to methanol? I still want to come see the car run. What are you running for a carb?? Let me know if you need a ton of M1, that's what we run in the Monster Trucks.
05-30-2012, 11:11 AM
#36
I'm just putting my numbers in for the fun of it stock shortblock 6.0 epp cam vic Jr and leaving on no boost cause trans brake was broke went 6.20 at 124.45 and converter was junk so coasted to a 9.66 at like 126 I think I 60 ft 1.76 on foot brake
05-30-2012, 07:31 PM
#40
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Damn....I am way behind the power curve. Way to go 71 Chevy. I hope to have mine out not this weekend but next weekend. My car was running way too fat and now its actually E85 instead of E70. So I am hoping with the same tune it will pick it up a ton.