LS2 Intake and 90MM TB install on LSx engine

[J-Rod]

http://forums.corvetteforum.com/showthread.php?t=875879

LS2 intake asm will bolt on an LSX engine,
It will require
The new fuel rails and lower injector o-rings seals and .300" rail spacers to make up the different in height between the injectors.

The original current rail can be use with a buncha tweaking, but the new LS2 are a much larger diameter.

90MM LS2 drive by wire throttle body can be retro wired to current PCM and be fully functional.

Extend MAP sensor (use current lsx sensor ) wiring 21� to reach the front from current rear position.

Current fuel rail covers will not directly bolt on, but will with a tweak to the fuel inlet and some tweaking with a die grinder

All the current Brake Booster,PCV lines etc as well at the 4"OD inlet hose are the same.

90MM LS2 Throttle body will work with the following information


PIN ID LS2 90mm
A.) ACT2
B.) ACT1
C.) +5v TPS Reference – Common to both TPS’s
D.) TP1 Signal 0-5v
E.) Common Ground
F.) TP2 Signal 5-0v

98-04 Wiring hookup
A.) ACT 2 - Brown
B.) ACT 1 - Yellow
C.) +5 TPS Dk Green/Wht
D.) TP1 Signal – Drak Blue
E.) TPS GND – Purple
F.) TP2 Signal – Pink

Yes it works better and much cheaper than an LSX manifold, and the drivability of the 90mm TB is very good. The bell shaped entrys into the runners seem to work very well. They also moved the injector entry higher in the runner, so not it does not block the port roof.

PN are avail at your local dealer..it can be weasled if you know how. Should be avail straight up in less than 4 weeks. The only major snag for most will be the new style connector for the throttlebody. I suspect most will use the old style packard pins on them (they fit) and solder and epoxy them in place. The Delphi part #'s have not hit the market yet, it is the new corporate standard plugs so they will be used in a lot of different applications.

[niphilli]

Originally Posted by J-Rod

http://forums.corvetteforum.com/showthread.php?t=875879

LS2 intake asm will bolt on an LSX engine,
It will require
The new fuel rails and lower injector o-rings seals and .300" rail spacers to make up the different in height between the injectors.

The original current rail can be use with a buncha tweaking, but the new LS2 are a much larger diameter.

90MM LS2 drive by wire throttle body can be retro wired to current PCM and be fully functional.

Extend MAP sensor (use current lsx sensor ) wiring 21� to reach the front from current rear position.

Current fuel rail covers will not directly bolt on, but will with a tweak to the fuel inlet and some tweaking with a die grinder

All the current Brake Booster,PCV lines etc as well at the 4"OD inlet hose are the same.

90MM LS2 Throttle body will work with the following information


PIN ID LS2 90mm
A.) ACT2
B.) ACT1
C.) +5v TPS Reference – Common to both TPS’s
D.) TP1 Signal 0-5v
E.) Common Ground
F.) TP2 Signal 5-0v

98-04 Wiring hookup
A.) ACT 2 - Brown
B.) ACT 1 - Yellow
C.) +5 TPS Dk Green/Wht
D.) TP1 Signal – Drak Blue
E.) TPS GND – Purple
F.) TP2 Signal – Pink

Yes it works better and much cheaper than an LSX manifold, and the drivability of the 90mm TB is very good. The bell shaped entrys into the runners seem to work very well. They also moved the injector entry higher in the runner, so not it does not block the port roof.

PN are avail at your local dealer..it can be weasled if you know how. Should be avail straight up in less than 4 weeks. The only major snag for most will be the new style connector for the throttlebody. I suspect most will use the old style packard pins on them (they fit) and solder and epoxy them in place. The Delphi part #'s have not hit the market yet, it is the new corporate standard plugs so they will be used in a lot of different applications.

Great info JRod..keep it coming..

I know this is a little off topic, but the dyno numbers posted in this forum for the GTO were a little bit of a shock to me. It just seemed to me that the 4"bore, with the 90mm TB, better intake, better manifolds, 10.9:1 cr would add up to a little more power. I guess it is just a testament to the fact that the LS1, 6 engines were pretty darn good to go...The camshaft was the biggest limitation

[smokinHawk]

linky no worky

[J-Rod]

Originally Posted by smokinHawk

linky no worky

CF is down again...

[LOnSLO]

Fantastic Info!!!!!!! Thank God the intakes and TBs will be available soon! No way am I dropping that much money on a FAST inake.

[CHRISPY]

that is GOOD NEWS! Now we need to test a TPIS or FAST 90mm T-body on an F-body that isnt drive by wire

Any dyno comparisions to the LS6 intake?

That setup with a bigger MAF and custom intake will do wonders

[11 Bravo]

My question is how much cheaper than a FAST 90mm setup? Especially with the new LS2 fuel rail you should buy. And does it have extra material to allow for port matching to heads like the LSX?

[99Fbody99]

Originally Posted by 11 Bravo

My question is how much cheaper than a FAST 90mm setup? Especially with the new LS2 fuel rail you should buy. And does it have extra material to allow for port matching to heads like the LSX?

It is currently listed for less than $300 bucks.

[KGSloan]

Originally Posted by 99Fbody99

It is currently listed for less than $300 bucks.

i hope this is correct. i'd upgrade in a second for $300 and some new fuel rails.

[offaxis]

Excellent info. I was about to pull the trigger on a lsx and i think you just saved me alot of money.

J-Rod for President!!!

[BoneSS]

What sucks is the price of the tb!

[CRASH 02]

Can you use a 90mm FAST TB with the LS2? If not, I wonder what it would cost if one of the sponsors made one with the correct bolt pattern but with the current style connections?

[99 Black Bird T/A]

What's the LS2 TB cost?

[BoneSS]

I was going by the FAST cost, which is around 500 I believe, since that is what the post talked about at the begining.

[Plan B]

Originally Posted by offaxis

J-Rod for President!!!