Flint

What are the physical dimensions on that engine? I imagine the main advantage (besides parts availability, I guess) is that its a bit more compact leaving more room for the turbos and associated plumbing.

MarkRobinson

That's true. I've been looking over a friends 1600hp Viper TT under construction, very little aluminum in those monsterous heads. ...

hacker-pschorr

I'm not a fan of Toyota's in general, but they are built like tanks. I would love to see a 928 V8 powered Porsche post these numbers:

http://members.rennlist.com/hacker_p...0Toyota%20.wmv

I'm not saying this cannot be accomplished, but after seeing multiple 600+ supras with stock lower ends running around, it is impressive.

MarkRobinson

Supra 2JZ is built for boost: Piston skirt oil squirters, factory-coated pistons, & a smooth straight-6 design. Slapping boost on a standard Toyota higher-compression V8 not meant for boost will not have nearly the same result as the 2ZJ.

John Struthers

I like it!
But, how does one keep the paint on the Hood with all that concentrated heat under the Hood?
Direct venting?
MeThinks the stocK foam wouldn't last long.

slate blue

The owner sold his S2 engine to me because he didn't think he could modify it for power at a reasonable cost. Maintainance was also a concern on the engine for him.

Yes I have now contacted the owner, he is not really comfortable with computers, so I will have to really encourage him onto this forum, your comment may also help this. It has been featured in Zoom magazine.

Mark as a great admirer of your work, maybe Rick wouldn't have done this conversion if he had know about your up coming kit. I will leave that one to him to answer. I do know that these Lexus engines put out huge power. There is two that I am aware of that are 1500 and 2000 hp respectfully. I do know that Rick wants to run 22 psi boost.

The engine is more compact and lighter weight, it weighs with all ancilleries approx 200 kgs. (Not counting the turbos intercoolers etc) BTW this was also the reason I went with the 2 valver, it can be made about 30 kgs lighter than a GTS engine.

This car is an automatic, and it is the standard auto, he may well purchase a GTS box that is available here at the moment, then run the bolt setup where the PSD slave is.

Bill Ball

Well, this should answer come some questions about the durability of the 928 drivetrain. Let us know what breaks first. :-)

JET951

1500 and 2000 hp greg. i doubt it. what car is it. can you post up some pictures. maybe a dyno sheet or time slips. is it in australia?

slate blue

Don't have a lot of time to do the proper searches but this link will answer some questions.
Lexus Drag Car

Cheers Greg

JET951

hey greg

well it is a toyota but then it isnt. it was once apon a time a toyota motor before they replaced every part of it with custom bits and pieces. even the block is a one off custom billet item. it runs about 1100hp. the times are slow for 1500hp or 2000 hp. 1500-2000 should push you down into the low 6s.

"Top Qualifying was John Donis in the awesome little Lexus V8 rail with a stout 7.017 at "only" 190MPH (having run 200+ previously). The Donis/Tuttle team have been
busy in the off-season, having made their own billet block to overcome cracking
problems with the thin-wall factory original. Several other racers put in solid
qualifying performance having either come back from long layoffs, or in entirely new
vehicles."

i would lead to believe that if this sort of time and money was poured into a 928 motor it would produce outstanding power, if not more.

sean

slate blue

O.K this car doesn't have 1500 hp but if you check out the videos it has some super speed. The best kit car I have ever seen, in fact faster than the real Ferrari F40. As he says he has turned down $275K for his car, that would be one of the dearest kit cars ever I reckon.

Some very impressive figures

Car specifications

Enjoy Greg

JET951

but you still cant call that motor a toyota anymore. its custom everything. outlaw class is one of the best.

now he must have some cash to do that. looks like he has spent a lot of money on that kit car.

MarkRobinson

Stock Toyota & Lexus V8's were not designed & constructed for power or boost like the 2JZ. If you lowered the compression to 8:1 & ran up 22psi with proper management, I would be quite surprised if it held together for more than a few dyno pulls. Custom rods & pistons are cheap for this conversion considering the grand scheme of the work involved: I'm sure they're mixed into this conversion if indeed he's getting over 600hp.

You can pretty much double the HP on most non-crap V8's with proper compression/boost/engine management. Bust asking a 3-fold on a stock V8 is a time-bomb for sure. I'd bet he's done his homework & have custom rods/pistons in there for anything over 600 or so.

MarkRobinson

I realize I might have been a little naive on my last post. simplified, most all V8 engines are not built for high power, high boost. Taking a mass-production motor not designed for high power/boost will more than likely, demonstrate weaknesses well below 3x it's power, regardless.

The guys at boost logic can take the NA supra/SC300 with the NA 2JZ, reduce compression with a thich headgasket, and still get 650hp out of them ( nearly 3-fold) reliably. This is an unusual case, but so is the 2JZ in general as it was designed to be boosted over NA with few parts differing internally. Since the Toyota/Lexus V8 were not designed for boost, I wouldn't expect it to show strength characteristics like the 2JZ. Keep in mind, Toyota had 5 years of turbo research with the 7M-GTE ('86-91 supra 3.0 straight 6) & all it's design flaws to throw towards the 2JZ. The current Toyota V8 did not have this past to draw strength from during design, & there was no reason for Toyota to build the bottom end ultra-strong & lubricated/cooled like a 2JZ (as it costs $$$) when they had no intensions of ever putting it in a boosted car.

if they did, and it's that strong in NA form, then I'm a monkey's uncle (as it is possible, just not probable. Toyota is in business to make $, not spend unnecessary $ on ultra-strong shortblocks in production cars/truck. Otherwise, slap some inexpensive rods/pistons in there & go make 1200hp!

The guy probably has 50k into his project (min), so what's another 2k?? 4% for a strong shortblock...not a lot of money in the grand scheme of things.

Tony

ive seen a lot of "street car" drag videos at the trak, but that one ranks up near the top. Very cool!

here's a bunch of Supras.
http://www.lvracingscene.com/videos.php