Twin Turbo Lexus engine pics in 928 Finally!
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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.
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Originally Posted by MarkRobinson
I seriously doubt that there's so much more to offer in the toyota motor that couldn't be done in the 928 motor. Toyota internals are quite dainty by comparison. Apples to apples, the same TT on a 928 motor would probably make more powe: more displacement, higher-flowing heads & intake, etc. Seriously doubt the 'yota has forged pistons, so should be an accurate enough hypothetical to consider with the same boost/engine management maps.
Plus, figure a few extra thousand on any conversion outside the 928/Porsche.
Plus, figure a few extra thousand on any conversion outside the 928/Porsche.
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.
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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.
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WH928 awsome work! toyota makes a perfect engine! just think what it would cost to get that much power out of a porsche engine!
Fogey1 Andrew Olson wrote
"Wow! Good work! How did you adapt it the the 928 drive line?"
bump. i.e., ditto the question. If it's not yours, can you get the owner to talk? Or a link to the magazine article it's worthy of?
"Wow! Good work! How did you adapt it the the 928 drive line?"
bump. i.e., ditto the question. If it's not yours, can you get the owner to talk? Or a link to the magazine article it's worthy of?
MarkRobinson I seriously doubt that there's so much more to offer in the toyota motor that couldn't be done in the 928 motor. Toyota internals are quite dainty by comparison. Apples to apples, the same TT on a 928 motor would probably make more power more displacement, higher-flowing heads & intake, etc. Seriously doubt the 'yota has forged pistons, so should be an accurate enough hypothetical to consider with the same boost/engine management maps.
Plus, figure a few extra thousand on any conversion outside the 928/Porsche.
Plus, figure a few extra thousand on any conversion outside the 928/Porsche.
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.
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.
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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
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
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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
Some very impressive figures
Car specifications
Enjoy Greg
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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.
now he must have some cash to do that. looks like he has spent a lot of money on that kit car.
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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.
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.
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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 $$$) when they had no intensions of ever putting it in a boosted car.
if they did, and it's that strong in NA form, then I'm a monkey's uncle (as it is possible, just not probable. Toyota is in business to make $, not spend unnecessary $ on ultra-strong shortblocks in production cars/truck. Otherwise, slap some inexpensive rods/pistons in there & go make 1200hp!![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
The guy probably has 50k into his project (min), so what's another 2k?? 4% for a strong shortblock...not a lot of money in the grand scheme of things.
The guys at boost logic can take the NA supra/SC300 with the NA 2JZ, reduce compression with a thich headgasket, and still get 650hp out of them ( nearly 3-fold) reliably. This is an unusual case, but so is the 2JZ in general as it was designed to be boosted over NA with few parts differing internally. Since the Toyota/Lexus V8 were not designed for boost, I wouldn't expect it to show strength characteristics like the 2JZ. Keep in mind, Toyota had 5 years of turbo research with the 7M-GTE ('86-91 supra 3.0 straight 6) & all it's design flaws to throw towards the 2JZ. The current Toyota V8 did not have this past to draw strength from during design, & there was no reason for Toyota to build the bottom end ultra-strong & lubricated/cooled like a 2JZ (as it costs $$$) 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!
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
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.
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Originally Posted by 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.
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.
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