Justgotastang

I just picked up a black 99 GT, manual tranny. I love the car, but I'm wondering where it runs. I searched but couldn't really find a thread that answered my questions.

I had my friend drive the GT and I drove my Z28 last night and we ran them, it wasn't pretty. I want to get this GT into the 12s then I'll do my heads/cam on the Z (shootin for 380 rwhp on mild port/polish with mild emissions cam).


What do they run stock? What does it take to run 12s in the way of bolt-ons?

I'm going to get this thing to the track next week, but hopefully you guys can give me some numbers to expect. low-mid 14s at around 95 mph?

Dragon02GT

low to mid 14's at 97-99 mph trap. I would guess since it looks like you know what you are doing from your sig that you can get a 14 flat with a decent launch. To get that hin into twelve's you are looking at full bolt on's, cam and head work. If oyu really want twelves I would honestly go w/ a supercharger or spray. FUll bolt on's w/ head and cam work is gonna cost some serious cheddar.

myshifter

congrats, but it just goes to show once again that fox's and pushrod motors are where its at

Justgotastang

Heh well the Camaro will always be the fast one. I was just hoping I could get this thing to 12s with bolt ons. I guess I'll look into N20.

SpecterGT260

is 270 rwhp normal for LT1's stock? i only ask because they are rated at 275 bhp, and i absolutely destroyed one a little while back no spray

Dragon02GT

Yes, the LS1's dyno around 290 rwhp, everyone says GM underrated the z28's to make the vette guys happier.

SpecterGT260

i didnt say LS1 [8D]

Justgotastang

270 is normalish for an M6 car. A4s typically dyno 255-265. Dynojet numbers BTW. Best real dyno of a stock car I've ever seen was an M6 97 T/A at 279 rwhp. I've heard of 283 but never saw dyno graphs.

LT1s were really underrated. The only ones that were rated correctly were the 96/97 WS6/SS cars at 305 fwhp (only difference between 97 Z28 and 97 SS was suspension, hood and a heat soaked air resticting intake on the SS). They all make about that much. LS1s were underrated as well, as previously mentioned.

Dragon02GT

i know, I was just saying that GM underrated both the LT1 and the LS1. They both dyno close to what their rated fwhp is.

Justgotastang

yeah supposedly it was to keep corvette owners happy, or so i hear.