71 chevy

iTrader: (18)

want to see what you guys think. the self imposed boost limit is 15psi and I will NOT go over that.

stock 6.0 lq4
STOCK CAM
max 15psi

vic jr intake with 4 barrel tb
160lb ford injectors -was 96lb
patriot springs
methanol -was e85

race weight is between 3000-3200 estimated.

http://www.youtube.com/watch?v=rkuFH6Yd59g

2005vetteTT

iTrader: (1)

the biggest question is.. what turbo?

71 chevy

iTrader: (18)

lol

twin master power 60s, non intercooled

Nitroused383

iTrader: (10)

Doubt it if you're max boost is 15lbs.

Hank Peabody

iTrader: (2)

My car at around 13psi went 108mph in 1/8th, alot like yours

3300 race weight
stock LQ4 with stock cam and springs
S400
th350
no ic, mix of e85 and gasoline, about e50 I think

Here are the things better about yours that will get you past 108mph:
I had three broken pistons (totally wrecked 2nd and 3rd ring lands)
You have 2psi more
You weigh a little less
You have better springs
Im mostly an idiot

I bet you can go at least 115mph, would that be in the 5.90s? Should be close right?

L-EATER

iTrader: (2)

I am skeptical. I voted the "low 6s at best" choice cause there wasn't a "mid 6s" option.

Louis

iTrader: (7)

Its gotta 330, or it wont. Its going to take a lot in other aspects to go that fast, because you wont have the power.

buick_lsx

stock truck cam or stock ls6 cam...and if truck cam, whats the diff. between the two


my car went 6.73 @103 weighing 3930...so 700-900lbs lighter i can see high 5's

also mine was 11 psi so another 4 psi on yours help as well...ill say yes at high 5's if you can launch

71 chevy

iTrader: (18)

my last time out, 115 was 6.04 but with the 4.86 gears, top of first was coming so fast that i let out every single time, so im thinking 115 would be somewhere in the 5.90s.

anyone who can tune a blowthrough carb on a methanol/gas mix is hella smart in my book.

mid 6s thats only like 500hp at 3000lbs. we will see though.

hey louis, how much power do you think it should take, say at 3000 lbs? also, you have a dyno. im curious what a stock cam 6.0 lq4 with only waterpump and no other belt driven accessories will typically put to the ground via an auto. dont forget the vic jr intake.
my 4.8 that you helped me tune without charging me(thanks for helping me out when i was so green - you probably dont remember who i am lol) went 6.04, 115.xx in the eighth and that was on only 14.2 psi. BUT , it had a mondo cam in it and reved to 7600. im thinking that with 70 more cubes it should be able to at least equal that with 1 extra psi boost but i dont know.

with the cammed 4.8 i got 1.40 60s and 3.90 330s and that engine was making no power under 4000rpms. im thinking the 6.0 may get me in the 1.30s




yay a believer... it is the stock truck cam. its about 10 degrees smaller than the ls6 cam
thanks for the numbers. 700-900lbs lighter is at least .5 in the eighth if not more, so the extra boost may get it in the 5s.

do you have any vids, and what cam did you have in yours?

Fbodyjunkie06

iTrader: (10)

Hell my **** trapped 113 at 3900 pounds on 15psi with a 227/224 114 cam.

I think 5.90's are doable easily.

buick_lsx

Mine was with a ls6 cam...no videos though

Fbodyjunkie06

iTrader: (10)

This is how the op's car ran with 15psi on a 4.8, you can hear him pedal it after he releases the trans brake.
http://youtu.be/vjXT-T11J5M
same turbo's his 6.0 should put them right in there sweet spot at 15psi I think. Should make more than what he made before. That's just me though. Again I'm saying 5.90's are doable.

71 chevy

iTrader: (18)

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

skinnies

iTrader: (33)

I think it's doable

quik67

I am on the fence about that 5.99999 but because of what your were able to do with your last setup I think you will get there. Your previous combination threw conventional turbo wisdom in the trash can. About that 15 psi limit, we'll see. I think an extra pound or two will be in the future if your run a 6.03 -6.05 Good luck buddy, great build!

71 chevy

iTrader: (18)

me too lol. honestly after seeing what some of these stock cam guys are doing in the NA section, I think it may not even take 15psi but that might be reaching



hehe, Im 300lbs. If I run a 6.03-6.05 again Im going to get someone half my weight to drive it and put it in the 5s. lol

conventional turbo wisdom LMAO -you mean like reverse split cams and special heads because the stock ones have a "thin" deck? LOL .yah, non of that here.

assuming the lq4 in stock performance form makes between 340 and 400 hp, then the reher morrison chart says it should run anywhere from 6.05 down to as fast as 5.73, if the car weighs 3000lbs

http://www.rehermorrison.com/PdfFile...eriesHP_ET.pdf
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Nitroused383

iTrader: (10)

I'm not an 1/8th mile guy but isn't a 5.9 almost a 9.0 second pass?

71 chevy

iTrader: (18)

About a 9.28-9.3 pass

seancarole

I was there with 4.8 and believe the 6.0 will bring in high 5's maybe a couple of times but really keep the boost around 10 or 12 and enjoy it before you blow it and then forge it then bring in the boost 25 and fly.

Wicked69

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