Swapped out the LS6 intake/stock ported TB for a FAST 90/TPIS 90 on the pig last weekend. Fairly pleased with the end results though I was shooting for 460+ .... damn you DAMIAN!

With the old set up(LS6 intake/stock ported TB), the car made 435/405 on TEA S1.5 5.3's, and a lil' old F11 cam(228/230, 585/595 112+3*)through an M6/12 bolt/4.56's/28" slicks/supporting bolt on's with FULL exhaust and FULL belt.

After the the swap, it went 457.3/423.9 on a safe(a tad fat)N2o tune. That's a gain of 22.3 rwhp/18.9 rwtq. Not too bad considering I bought the combo used from a board member, so the $$$ vs. gains ratio are within reason I suppose. Hoping this 90/90 really shines on the yet to be built 408" coming in '06.

On a side note.... the HP peaked at 6200(I've advanced the cam a hair)and held level all the way to 6900. The TQ. went from 340 @ 2600, to 400 @ 3900, and peaked at 423.9 @ 4600 before falling slowly to 350 @ 6900. All in all, a very nice looking graph(wish I could post it.... scanner DOWN )

Wasn't able to spray the F1 150 hit as I'm chasing down some electrical gremlins, but hoping for 600+/600+ , and 10.xx's on the hose with the F11 cam(fingers crossed reaching for pixie dust )

Also like to thank my buddy Mike(Evilz28NOS) @ GMMG for taking time on his day off to tweak the 'puter! You 'da man Mike! (You should'a been there Ron.... instead of layin' on the sand like a beached whale J/K bro) Can't wait to get some ET's NA/hosed!

 

awesome numbers. The intake picked up alot.

 

very nice I got the fast 90 combo also but waiting on my 402

 

Wow! Great gains from an intake and TB swap.

 

I swear 80% of the people that go with the 90/90 setup and end up with 6 rwhp gains dont know what they are doing... Then there is those that do know WTF they are doing and make bad *** numbers like in this thread! Kickass numbers for sure!

 

Very encouraging results. I plan on swapping to the FAST 90, NW 90 very soon.

 

i think i need someone else to tune my car!! congrats on your numbers. oh, my timing was set on 24 degrees, dosent that seem kinda low?

 

Thanx for the kind words guys! Seems like I've been chasing this # forever w/this car..... while everyone else(read Damian, Gomer and others) were able to slap a cam in and go 470's LOL!

Guess there is some substance in "matching" the parts....

Forgot to mention Mike has timing set a 28* accross the board and A/F @ 12:8:1. Seemed like adding advance did nothing beyond 28*. Wanted a ragged edge NA tune and pull a couple few degrees with the timing tuner on the 150 hit, but he felt a little fat and conservative advance was a safer bet even though I'm running an inline pump.

I wonder what it would have pulled through a 10 bolt/3:42's on 26" radials with NO BELT?

 

sweet, thanks for the post...i plan on getting the 90/90 combo, hopefully itll put me up there along side your kinda power....right now im making 415/380 with H/C but i still have stock ls1 intake, TB, and pulley...eh, i prolly wont see 450rwhp, but im hopeing to see around 440/400..i'd be happy with that..

Jon

 

Thats awesome man, almost hit my LS6 intake #'s

J/K man. Those #'s kick *** bro, and your TQ curve probably looks a LOT better than mine. 423 ft lbs is killer. I bet it feels nasty with your gearing. Thats a 470 rwhp machine with a 10 bolt.

Whenever you decide to give me directions to your new house, i'll bring the meter back and maybe take a ride in the "new" pig

 

Nice gains. I just brought a 90 mm NW TB and 90 mm intake. Ishould see a good gain with the port work that was done with the intake