brobinson216

iTrader: (11)

02 Trans AM < 50k mile stock bottom end. 6spd 3:42 stock rear

Stock untouched LS6 Intake and TB
42lb Injectors
1 3/4 Kooks with custom 3" FM Merge Y through stock catback
TFS CNC 205's out of the box 11.5:1
BTR Stage 3 NA

What's next? Thoughts?

AFR @ WOT 12.4
SAE Smoothing at 5

HCI2000SS

iTrader: (2)

Good numbers! Try it at the track now

soloman369

iTrader: (13)

Looks about right. For your set up. Guessing this was on a dynojet ?

SoFla01SSLookinstok

Looks good! Get a better catback on then a fast setup.

madmike9396

iTrader: (29)

Nice gain !

brobinson216

iTrader: (11)

Thanks, Fortunately I have a drag car so this is just a play toy for the street.

Yes a well known stingy Dynojet.

I was thinking a set of 4.30's and call it done. Will this setup benifit that much going to a Fast?

madmike9396

iTrader: (29)

410s will be just right. You would possibly gain another 20 hp going to a fast setup.

With that kind of power your going to need a better rearend now

brobinson216

iTrader: (11)

There's a brand new QP 9 inch laying in the gargage ready to go in. Problem is I'm liking the 3:42 but it wants MORE gear.

madmike9396

iTrader: (29)

410 were perfect in My m6 car imo

Rise of the Phoenix

iTrader: (27)

There's a lot more left in this combo for sure, but those numbers are great. 1 7/8" headers, a better exhaust setup, and a FAST/FAST setup will yield you another 35 to 40 HP I bet.

SoFla01SSLookinstok

If this is just a street car, with street tires, 4.30 or 4.10 may be a little too much. It all boils down to what you want. Thinking, with that power, with 4.xx gears, & no sticky tire, it will be spin city.

The first thing I would do is get that stock catback off. You may like the sound/tone & sleeperness of stock tips though. I believe a fast will help power, across the board, no matter. The easier choice being the 92 as you can use the stock fuel rail & don't have to grind. The 102 will help more, with power, but needs aftermarket fuel rails & it may contact the top of the water pump/grinding.

Seems you're making good power as is.

SoFla01SSLookinstok

I love this article.

http://www.hotrod.com/features/1507-...ifolds-tested/

brobinson216

iTrader: (11)

I've got multiple 9" center sections from other cars laying around. I would really like to keep the 7.5 due to the fact that I will most likely never put a set of tires on this car.

I agree the 4.10 will most likely fit the bill. Appreciate the insight!

To be honest I think there is as well, some just in the tune itself. Swear I bought this thing to have a fun car to drive back and forth from work. I'm debating about a catback now. Thanks for the positive feedback.

Yes, the lower ratio will make it a tire shredder for sure. But it wants more gear and the 3:73 won't cut it. It's tuned pretty well and still has some slight surge around ~1200.

To be honest I built this motor trying to prove what I already knew. The gains with the smaller runner heads vs. > 210 runner heads would be on par being a 346 ci. I found that out in 2005 with one of my z06's and a set of Dart 205's. Yielding max HP was not in the original scope simply put it's a fun streetcar. Now it's time to see what it really has in it.

I will order a fast 92 combo and see what that does for it.

Thanks for bringing this back to my wallet attention. Apreciate it

SoFla01SSLookinstok

SoonerBrad88

iTrader: (15)

If this is going to be a street only car 4.10s wouldn't be bad. That's what I've got and I made similar power and they work great. As for at the track I'm way up in 4th on a 26" tire on motor. On a 150 shot on a 28" tire I'm 6800ish.

brobinson216

iTrader: (11)

Ported Fast 92mm and Fast 92mm TB installed and took it out for a drive this am.

Holy **** that woke this car up. The throttle response is so much crisper and responsive. To those who have the H/C and considering the Fast, make the move now as you will not be disappointed.

Install went smooth, now its time to get some data logs and make some adjustment.

The TPS is sticking around .04% at idle, so that's the primary area of concern right now.

It will be May 31st before it can go back to the dyno. Maybe I'm in the wrong buisness?

NAVYBLUE210

I tell people all the time with 5.7 & HC and Headers they are leaving
20-25+ RWHP and just as importantly 15-20+ lb ft through pretty
Much their whole curve 2500-5500,6500 RPM not to mention
MUCH crisper throttle response on the table with LS6 intake & TB
compared to a well ported FAST 92 & 90/92 TB let alone the
FAST 102! or 383" LOL
Good Job!
Enjoy!

Bill00Formula

iTrader: (4)

440 rwhp seems a little generous. Even if you have another track car the best way to see how well the combo works is taking it to the track.

brobinson216

iTrader: (11)

My believe as well now. I'm sold and thanks for the kind words!

11.5 comp and the right head combination for the CI used. This dyno is far from generous. It was well thought out, not my first rodeo.

SoFla01SSLookinstok

Nice looking engine!! Is that a catch "box"?

I see you went with the fast TB & have a idle issue. A lot of people do. I made this thread after finding myself.https://ls1tech.com/forums/generatio...ast-92-tb.html