im just curious to see how many people, if any, are hitting 130 mph in the quarter mile with just heads and cam on a stock 346 ci block. i havent done it yet but was hoping after the addition of some new heads that maybe it was possible.

 

Hmm I would guess nobody without Nitrous.

 

NA it would have to be a VERRRRY light car almost unrealisticly light in the 2500-2700 range and one hell of a 346ci setup...

With 150 hit of the juice it happens all the time with a nice well rounded H/C setup

 

Check the drag racing section and you'll probably find what you are looking for


FWIW: I went 129 mph with heads, cam, FAST90/90 and a 150 shot

 

https://ls1tech.com/forums/drag-racing-results/818893-all-time-fastest-n-stock-ci-h-c.html

http://youtube.com/watch?v=mTSA778AqtA

 

robz as well in his 02 Z06

 

I have been 128mph in the 1/4 with a TR224 cam, stock heads and a 124rwhp dry shot running 3.90's (stock 10bolt) in my full weight M6. I just pulled that cam out and I am in the process of putting a F 14 in with PP LS6 heads on top. I think I should have a good chance at breaking 130mph with this new setup and 100rwhp shot.

stock bottom end, Nitto 275/40 17" DR's, stock 10 spokes

 

Its not that hard with a good tune and some good parts. My H/C 346 is trapping 135 and I'm still running a T-56, no wait thats why my car trapps real good.

Good luck, Tom

 

I have gone 127.5 at 3150 ish weight with economy prc 2.5 heads.Where are all of the guys running AFR and TRICKFLOWS that put down the big 500 hp dyno numbers at ?THATS THE REAL QUESTION

 

I have over 50 passes 130mph+ on my 346(stock bottom end) over the past few years in my full weight 03 Z06.

 

agreed

probably trapping mid 120's like the guys making 420 rwhp

 

Guys making the big power never post times.

 

Its perfectly dable, most cars just dont work well as they should

 

DemonicBird00 has gone 127mph with his custom cam (unmilled heads and no flycutting) only T56 camaro. He doesnt even have a ported fast. Its box stock. He also went 127 mph with his slicks at something like 15psi so he could hook up better but that has got to add to the rolling resistence down the rest of the track and slow down the traps. He has done weight reduction but I believe his car is still 3200-3300lbs.

This is the best combo I've seen.. add heads and you should be at 130+

This is the combo I am planning on putting in a 2500lb car with a 100 shot to get to 140mph traps.

Then theres the LG guys who went 140mph with their H/C C5 but that weighed in at about 2800lbs

Good luck

 

agreed, but you would think with more and more 500 rwhp combos youd see more 130 traps

 

I have gone 124 in a cam only auto and 131 on a slipping converter 100 shot...

It is not hard at all to go 130 you just need the correct set up, low weight, and some money.

Not many new people are going 130... but the older guys back in like 05,04,03 were doing it a lot.

good luck, maybe ill hit 130 one day when i can afford heads... right now im shooting for 135 and mid 9's cam only on a big shot