LS7 price
Joined: Nov 2001
Posts: 1,707
Likes: 33
From: Anderson, Indiana
Originally Posted by jellison
Cheers Guys - can we have a vote on which is the BEST after market 90mm throttle body - (I have heardsome are crap!).
Pity I would not be able to use the Header! Presume it is a sort after item and could sell on? (I have to go forwards with custom made headers for a TVR).
Pity I would not be able to use the Header! Presume it is a sort after item and could sell on? (I have to go forwards with custom made headers for a TVR).
The other big advantage of staying with the GM setup is the diagnostic capabilities. It's very handy to be able to plug a Tech 2 or any up to date diagnostic tool in to the system and see everything going on. You give all of that up with the aftermarket setups.
We've done over 30 of these systems now and the ones that are up and running are running great! Good power, good street manners, it's a setup that's tough to beat.
Just "food for thought". So many people want to jump to the aftermarket for a controller, and switch over to a throttle cable, when the factory type setup offers so many advantages.
__________________
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
Instead of jumping to the aftermarket you might want to give some thought to using the stock throttle body and GM ECM to run your engine. The GM fly by wire system works great, is very easy to hook up, and the stock throttle body has great driveablilty AND performance!
The other big advantage of staying with the GM setup is the diagnostic capabilities. It's very handy to be able to plug a Tech 2 or any up to date diagnostic tool in to the system and see everything going on. You give all of that up with the aftermarket setups.
We've done over 30 of these systems now and the ones that are up and running are running great! Good power, good street manners, it's a setup that's tough to beat.
Just "food for thought". So many people want to jump to the aftermarket for a controller, and switch over to a throttle cable, when the factory type setup offers so many advantages.
The other big advantage of staying with the GM setup is the diagnostic capabilities. It's very handy to be able to plug a Tech 2 or any up to date diagnostic tool in to the system and see everything going on. You give all of that up with the aftermarket setups.
We've done over 30 of these systems now and the ones that are up and running are running great! Good power, good street manners, it's a setup that's tough to beat.
Just "food for thought". So many people want to jump to the aftermarket for a controller, and switch over to a throttle cable, when the factory type setup offers so many advantages.
Thread Starter
On The Tree
Joined: Nov 2004
Posts: 107
Likes: 0
From: UK
Anyone got a picture of the engine (7) with the Dry Sump pump attached - straight on from the front woul be good - just want to check that it is likely going to be too wide for the chassis in this area and then have to use a hot ls2/6
Originally Posted by slt200mph
It depends on your perspective..you can build a hell of a stroker motor for quit a bit less. 
Originally Posted by jellison
Anyone got a picture of the engine (7) with the Dry Sump pump attached - straight on from the front woul be good - just want to check that it is likely going to be too wide for the chassis in this area and then have to use a hot ls2/6
The LS7 has an internal dry sump system as shown in previous pics... externally the differences are minimal and/or offset. Although the LS7 crank has a longer snout it has an offset harmonic balancer that will allow the use of C5/C6 Corvette accessory drive componants. No other GM GENIII/IV based vehicle has an accessory drive bracket system that will line up with the factory LS7 harmonic balancer. There are ways of converting the LS7 to wet sump... but they are time consuming and only add expense to the crate motor... not to mention reluctor wheel differences that require planning and/or changes in how you will tune or the equipment that you will use to manage and tune the engine. You would also need to make room in the engine compartment for a 2 gallon oil tank.
If you know for a fact that the LS7 oil pan will not fit in the chassis of the vehicle you are working with then you might be better off scratch building an LS2 (either stock 6 liter or resleeved to larger bore along with a 4" stroker crank to achieve 7+ liters) if you already have an oil pan in mind that you know for a fact will fit.
Bill
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Last edited by billreid1@cox.net; Jun 28, 2006 at 11:08 AM.
TECH Regular
Joined: Nov 2004
Posts: 415
Likes: 0
From: Reno, NV
Originally Posted by piusk
wheel to wheel did a good honest dyno(rare to see) on ls7 for a customer.
no playing with temps, or barometer, using unknown dyno headers.
tried several throttle bodies incl fast. umi throttle body with spacer showed 8 hp more across band. topped out at stp dyno at 564 hp at 6000, 543 ft-lbs
at 4800.
dyno info was on this site some time ago. found pictures of engine and hose adapter and dyno at www.ihp.com under gtr kit car info.
no playing with temps, or barometer, using unknown dyno headers.
tried several throttle bodies incl fast. umi throttle body with spacer showed 8 hp more across band. topped out at stp dyno at 564 hp at 6000, 543 ft-lbs
at 4800.
dyno info was on this site some time ago. found pictures of engine and hose adapter and dyno at www.ihp.com under gtr kit car info.
The ECU and harness is BigStuff3.
Last edited by Builder; Jun 28, 2006 at 12:53 PM. Reason: More Info
