What about a 4.0L, 400HP V6 from Cosworth?
03-04-10, 06:07 PM
#1
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What about a 4.0L, 400HP V6 from Cosworth?
As you know (or don't?), Toyota provides the powertrain for Lotus cars. Their new Evora uses a Toyota 3.5L V6 (276HP). Through their partnership with Cosworth, they have been able to stroke the engine to 4.0L and the output is 400HP for an Evora spec race series. Now THAT engine would be sweet. But I bet the engine would cost almost as much as a whole car!!
So who's going to be first to bug Cosworth to build one??
So who's going to be first to bug Cosworth to build one??
03-04-10, 11:20 PM
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As you know (or don't?), Toyota provides the powertrain for Lotus cars. Their new Evora uses a Toyota 3.5L V6 (276HP). Through their partnership with Cosworth, they have been able to stroke the engine to 4.0L and the output is 400HP for an Evora spec race series. Now THAT engine would be sweet. But I bet the engine would cost almost as much as a whole car!!
So who's going to be first to bug Cosworth to build one??
So who's going to be first to bug Cosworth to build one??
It also uses the same manual transmission on the is 250 with a different clutch plate and new single-mass flywhee (the evora)........Youre right.... you are probably looking at a porsche 991 turbo/gt3 pricetag....if lucky
03-05-10, 07:37 AM
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whats a single mass fly wheel? some special type?
if it really uses the same manual trans as the is250 all the manual guys here should swap out the clutch and flywheel
if it really uses the same manual trans as the is250 all the manual guys here should swap out the clutch and flywheel
03-05-10, 02:07 PM
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Truth is u cant really transplant a clutch or entire trans from one car to another and expect car b to shift like car a..... This is a misconception. Same thing goes for parts.....Remember the evora is a mid low mounted engine which by virtue (physics) itself will allow for a smoother shift than on the IS. There are also about another billion reasons why but that for another thread.
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03-05-10, 09:37 PM
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The company is caled "AP Driveline" in Britain.(AISIN Z6 single clutch plate + flywheel).
Once again...Personally I dont think that the weight of the flywheel has any bearing on the reported deficiencies in shifting (pertinent to the IS 250).....Further these parts may be suitable to the evora and NOT to the IS.........
03-08-10, 09:42 AM
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Weight of the flywheel makes a big difference. Rule of them less weight mass that an engine has to rotate can rev the engine faster and produce more tq/hp. Big difference from a steel heavy flywheel compare to a billet aluminum/chromoly flywheel. Im sure you can take the stock flywheel to a auto CAD machine shop, have it scanned and produce you the sale exact spec of the flywheel but in a lighter material possibly titanium, aluminum so on so fourth. Also it is possible to mount any manual transmission to any engine as long you got an adapter plate mating the stock engine bellhousing to the aftermarket transmission. Also centerline of the engine to drivetrain to match. The only thing you most likely have is a check engine light cause all the solenoids the stock one uses. Where there is a will theres a way.
03-08-10, 09:47 AM
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It a stroked out motor, internals are not interchangeable. Meaning bigger piston meaning bigger bore. Also you can get any custom cam profile made now and days. What it come down to is deep pocket and time to do the work yourself. Stroke motor = ported/polish intake and exhaust runners, bigger valves, custom cam lift, stronger springs, bigger injectors, retuned ecu to match the upgrades etc.
03-08-10, 12:57 PM
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"Weight of the flywheel makes a big difference. "
"well people where complaining about how it shifts and that someone said it was due to such a heavy flywheel i think. that'll probably help that a little bit "
Absolutely. But in reference to what the other poster was stating we cannot extrapolate that swapping the flywheel and clutch from the Evora would actually be beneficial to the IS
"well people where complaining about how it shifts and that someone said it was due to such a heavy flywheel i think. that'll probably help that a little bit "
Absolutely. But in reference to what the other poster was stating we cannot extrapolate that swapping the flywheel and clutch from the Evora would actually be beneficial to the IS
08-13-10, 02:23 PM
#13
It a stroked out motor, internals are not interchangeable. Meaning bigger piston meaning bigger bore. Also you can get any custom cam profile made now and days. What it come down to is deep pocket and time to do the work yourself. Stroke motor = ported/polish intake and exhaust runners, bigger valves, custom cam lift, stronger springs, bigger injectors, retuned ecu to match the upgrades etc.
Being stroked just means the crank throw is increased. Of course there would have to be custom tuning, but why wouldn't the internals be interchangeable?
*****Did not realize how old this was
Last edited by BartleDoo; 08-16-10 at 11:26 AM.
08-22-10, 09:15 AM
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"On the Evora Cup, the new 4.0L V6 develops 400 hp. The engine, mid-mounted, is paired with a Cima six speed sequential paddle shift dog gearbox, designed for international motor sport."
If anyone is still interested I have some contacts at CosUSA and have contacted them about potential parts, blocks, etc.
With the amount of IS350's sitting in salvage from rear-end strikes I think a build project like this would be pretty fun. A little expensive, but fun nonetheless.
Best,
Charles
If anyone is still interested I have some contacts at CosUSA and have contacted them about potential parts, blocks, etc.
With the amount of IS350's sitting in salvage from rear-end strikes I think a build project like this would be pretty fun. A little expensive, but fun nonetheless.
Best,
Charles
09-30-10, 02:24 PM
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Contact From Cosworth
From: Pio Szyjanowicz
Head of Communications
Cosworth Group
Sounds like the run-around, but this is similar to the message sent out before Nissan and Mitsubishi started having their performance parts available through Cosworth USA. In my experience with Cosworth I would guess a long block setup, if offered, would run north of $20K.
However, in looking at the premiere cars on this forum I am certain several have spent that much or more on cosmetic parts, paint, suspensions, and wheels. Plus you must admit that the idea of a lightweight, high revving, 400 hp engine in a iSX50 is too good to ignore.
Best,
Charles
Head of Communications
Cosworth Group
...We have a number of programmes within the automotive sector that provide Cosworth power to a range of original equipment manufacturers – some of these are in the public domain such as Lotus and Aston Martin while others will remain “under wraps”. Wherever possible our performance aftermarket division seek to leverage the developments in these programmes for customers such as yourself.
As you may have seen in the media, Lotus are engaged in hugely exciting programme with a considerable number of new vehicles and racing operations being announced at the Paris Motorshow.
Rest assured that as soon as there is any news regarding additions to our performance aftermarket range we will ensure that our distributors and the relevant media channels let everyone know.
Best wishes,
Pio
As you may have seen in the media, Lotus are engaged in hugely exciting programme with a considerable number of new vehicles and racing operations being announced at the Paris Motorshow.
Rest assured that as soon as there is any news regarding additions to our performance aftermarket range we will ensure that our distributors and the relevant media channels let everyone know.
Best wishes,
Pio
However, in looking at the premiere cars on this forum I am certain several have spent that much or more on cosmetic parts, paint, suspensions, and wheels. Plus you must admit that the idea of a lightweight, high revving, 400 hp engine in a iSX50 is too good to ignore.
Best,
Charles