on a stock motor.
LS9 pics
Thread Starter
Team Owner
Joined: May 2007
Posts: 48,589
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From: In the woods so F%^$ O&&
St. Jude Donor '17-'18-'19
LS9 pics
Don't know how many visit 2 sections down but here.
http://forums.corvetteforum.com/forumdisplay.php?f=49
http://forums.corvetteforum.com/forumdisplay.php?f=49
Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
I just dont get it...I thought everyone said twin screws weren't efficient..
I also heard a birdie tell me that there was a twin screw company that had offered a little "Help" in this arena, and that when this comes out there will be a fairly LARGE internal upgrade avail..
I also heard a birdie tell me that there was a twin screw company that had offered a little "Help" in this arena, and that when this comes out there will be a fairly LARGE internal upgrade avail..
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
I just dont get it...I thought everyone said twin screws weren't efficient..
I also heard a birdie tell me that there was a twin screw company that had offered a little "Help" in this arena, and that when this comes out there will be a fairly LARGE internal upgrade avail..
I also heard a birdie tell me that there was a twin screw company that had offered a little "Help" in this arena, and that when this comes out there will be a fairly LARGE internal upgrade avail..
As for the intercoolers! We'll see if heat soak is a problem with it!
Now we all need the specs and if it will bolt into a C5
Thanks,Matt
Melting Slicks
Joined: Mar 2003
Posts: 3,116
Likes: 10
From: Macomb MI
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Drifting
Joined: Nov 2003
Posts: 1,637
Likes: 2
From: Honeoye Ny
None of our stockers would survive the 200/400 hour durability test at that power. There isnt enough meat in the piston crown, and there are no means of removing the additional heat input (piston oil squirters and hollow dome salt cast piston like my turbo LNF motor).
I would expect a steel crank, great rods, and a hollow dome saltcast piston with the same kind of piston oil squirter system thats in the ecotec.
Cast pipstons are alright in some respects. Ive never had one break and F anything other than itself. Ive had forgies come a knockin thru the sleeve
what im really suprosed to see is that they have conventional (looks like garrett "1000hp" WIC cores) cores inthere instead of the Laminova extrusions that they have used in the blown northstar/ecotec.
Perhaps they couldnt fit enough tubes in there to get 65lbs/min thru there with a satisfactory pressure drop?
Former Vendor
Joined: Feb 2002
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From: DFW, TX www.vettestripes.com
St. Jude Donor '03-'04-'05-'06-'07-'08
Race Director
Joined: May 2005
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From: West Norriton PA
St. Jude Donor '08
Team Owner
Joined: Mar 2005
Posts: 32,266
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From: Somewhere between mild insanity and complete psychosis
They'd be morons not to build a top notch forged bottom end for the zr1.
Countless buyers will simply pulley down much like the Cobra crowd. Motor pops because it isn't forged, swap back the original pulley and leave GM with the rebuild cost under warranty. They'll save themselves $$$ by spending a couple hundred bucks extra per car for quality pistons and rods.
I don't think tacking it on to the final retail $ will hurt sales, this is going to be a limited production expensive car to begin with. Anyone who wants to spend six figures on one won't blink at a few hundred extra. This is a designer car made for the "look at me" crowd who don't care about spending extra $$$. Anyone who cares about price would be able to build a base c6 to more power with their own blower and a forged short block, put aside $$$ for multiple rebuilds, and still have cash leftover compared to a zr1.
Countless buyers will simply pulley down much like the Cobra crowd. Motor pops because it isn't forged, swap back the original pulley and leave GM with the rebuild cost under warranty. They'll save themselves $$$ by spending a couple hundred bucks extra per car for quality pistons and rods.
I don't think tacking it on to the final retail $ will hurt sales, this is going to be a limited production expensive car to begin with. Anyone who wants to spend six figures on one won't blink at a few hundred extra. This is a designer car made for the "look at me" crowd who don't care about spending extra $$$. Anyone who cares about price would be able to build a base c6 to more power with their own blower and a forged short block, put aside $$$ for multiple rebuilds, and still have cash leftover compared to a zr1.
Last edited by _Will_; Nov 27, 2007 at 03:55 PM.
Pro
Joined: Jun 2005
Posts: 734
Likes: 0
From: Austin TX
This twin screw should be a part in the GMPP catalog shouldn't it? Anyone have any idea on the cost? I see lots of potential for the supercharger setup for the lsx community.
Edit: Props to the GM engineers. Looks like a nice setup esp when you consider it's a production package.
Edit: Props to the GM engineers. Looks like a nice setup esp when you consider it's a production package.
Last edited by Boob; Nov 27, 2007 at 04:38 PM.
Safety Car
Joined: Apr 2003
Posts: 4,251
Likes: 7
From: Woodbridge Ontario
They'd be morons not to build a top notch forged bottom end for the zr1.
Countless buyers will simply pulley down much like the Cobra crowd. Motor pops because it isn't forged, swap back the original pulley and leave GM with the rebuild cost under warranty. They'll save themselves $$$ by spending a couple hundred bucks extra per car for quality pistons and rods.
Countless buyers will simply pulley down much like the Cobra crowd. Motor pops because it isn't forged, swap back the original pulley and leave GM with the rebuild cost under warranty. They'll save themselves $$$ by spending a couple hundred bucks extra per car for quality pistons and rods.
It's a simple matter to add a computer data recorder to keep track of rpm and psi readings.
BMW has them on their M cars for years. There are several documented cases of M3 owners being denied warranty work on motors because they were able to prove neglect with the data recorder.
GM's not exactly cutting edge technology, but it's just a matter of time before they do too.
Last edited by tlaselva; Nov 27, 2007 at 08:17 PM.
Melting Slicks
Joined: Apr 2005
Posts: 3,418
Likes: 1
From: Chicagoland Area IL
The belt arrangement looks great. This the best PD supercharger I have seen from the big 3.
Now as far as performance time will tell. The A2W intercoolers do look smallish but who knows what alloy it is?
Mike
Last edited by Skunkworks; Nov 27, 2007 at 09:58 PM.
Le Mans Master
Joined: Oct 2003
Posts: 8,863
Likes: 86
From: PA
St. Jude Donor '08
Do you honestly think they'd leave that avenue open for people to screw them with? Give your head a shake.
It's a simple matter to add a computer data recorder to keep track of rpm and psi readings.
BMW has them on their M cars for years. There are several documented cases of M3 owners being denied warranty work on motors because they were able to prove neglect with the data recorder.
GM's not exactly cutting edge technology, but it's just a matter of time before they do too.
It's a simple matter to add a computer data recorder to keep track of rpm and psi readings.
BMW has them on their M cars for years. There are several documented cases of M3 owners being denied warranty work on motors because they were able to prove neglect with the data recorder.
GM's not exactly cutting edge technology, but it's just a matter of time before they do too.
yeah the new 335 bmw monitors boost targets, if they are not within predetermined ranges then the gates open and the car goes into reduced engine power.
w/that being said i am sure that GM thought of something....
wow bmw guys blowing motors up????
Last edited by NICK YOSKIN; Nov 27, 2007 at 10:10 PM.