is anyone getting 600rwhp from ported stock heads? would that be possible with a 383 or a 396 with a D1? or would i have to have ported AFR's?

 

770 rwhp and 682 rwtq using ported LT1 heads, 388, and an F1 22psi.

 

WOW! thats alot of power. can you drive your car on the street much?

 

Yep... sure can. I still have the a/c, power steering, and some bumps. It's a street car... not a race car. It idles beautifully... sounds like my cat when I rub his belly.... purrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrr.

 

I plan on cracking 650rwhp or more on a D1SC in my 396 w/ LT1 heads. Axle I'll let you know how it turns out in May!

Bad you really got me tempted in going w/ a F1! I feel you on the heads as well and giving up the FLP's. I like my FLP's too much as well.

 

600 to 650 rwhp should be a realistic number with your planned combination. Trust me when I say that my old set up (355, P600B with 12 psi, 500 rwhp) was more than enough. What I have now is way too much... it really is.

Those FLP headers on my car are the prototypes as my car was used as the the "guinea pig" for the FLP long tube headers.

We always have to factor in what we gain for the dollars spent. Is it worth the expense of the LT4 heads or the AFR heads to gain what... 20 hp? 30 hp? Granted... I spent WAY too much on my car with this most recent project, but I had to draw the line somewhere... and it was the heads. The LT1 heads work just fine in my opinion.

 

What's it run?

 

well, if you have an ls1....a cam and a 6 psi blower will do more than enough. pretty easy to answer that one. now if you want to build something that will be a real monster, than thats the thread i want to read about.

 

I went to the track one time this year. It went 10.90 at 130 mph with a 1.7 60 foot time (my old combo with less suspension mods got me a 1.49). That was my second pass of the day (the first pass was a granny run to get a feel for the car). That 10.90 pass was made at 68% throttle according to my data log from my FAST system. Needless to say, when I picked up my time slip, they said to me, "Uh, yeah... you gotta see the guys in tech because you don't have a roll bar." I never went back to the track after that. I was happy with the results, but needless to say, I GOTTA PUT MY FOOT TO THE FLOOR!!! I know that the car has the power and suspension to run in the 9s. My brain needs to tell my foot to mash the gas pedal. I think the reason I don't is because the few times that I did go 100% throttle on the street, I scared myself so bad that when I got out of the car, my hands were shaking. I just have to get past that fear. Anyone wanna drive this thing? Maybe if I install a roll bar in the car, that'll help me get past 68% throttle. A good friend of mine, Dan Bills of FLP (also the person that tunes my car) hit the wall after a 7.24 @ 202.76 mph run in his Outlaw Mustang (his first pass with the new engine combo that would have run high 6s with more boost and a harder launch). If it wasn't for the skill of his chassis builder, he wouldn't be here today. Needless to say, his chassis builder will build my roll bar.

Saftey always comes first, guys!!!

Before




After






http://www.racingsouthwest.com/hosted/jolietweb2/7.jpg

 

Man talk about wanting to cry after that happens to your car! I am building a 900rwhp capable Z28 with a turbo and I am VERY unsure about how it will behave on the street with my 35 series tires!!!!! 18's arent very good for anything besides looks. So is this thing covered by any type of insurance or is he out a race car??

 

Insurance is $3500 a month. He didn't have it, but the track was at fault as they left the 1st return gate open. He skimmed the wall, but when it hit the opening (the open gate)... that's what destroyed the car. There would have been some damage needless to say if the gate was closed, but the car would have been more than likely saved. I was there... I was terrbile to see... especially when the driver is a good friend. He was ok... and I told him afterwards, "I'm glad that you are ok... I mean... who else could tune my car if you weren't around anymore?

 

I guess it all depends on which Z06 you're pulling up next to. But I think a twin turbo or an ATI/Vortech supercharger would be enough to give any Z06 a run for it's money.

 

my car made 640ish rwhp on 190cc slightly worked heads which in my opinion are junk i should of kept the stockers.
On a stock 10 bolt, 3.23 gears and a slipping clutch car went see sig
1/4 mile 10.66@134mph 4th gear clutch was slipping pretty bad i should of been 138mph+ on that run
that set up was def good for a high 9 , but i want to go little faster

 

I may be getting another car soon. 01 Cobra is what Im going to shoot for, If I got an 03 I would be replacing just about everything...

TT 4V mod cars kick ***

 

I'll volunteer


As far as Dans car, it's amazing how much even the chassis got torn apart. A testiment to how fast something bad can happen at that speed.