alpha26

Anyone ? somehow ?

CarHopper

Just no.

chrisridebike8

There is one but it's a black series with an M157 swap with 4Matic. I can remember what it's putting down but I want to say its around 850 hp. As far as I know, there are no M156 TTs around. Why would you want turbos instead of the Weistec blower setups though? (apart from being unique)

alpha26

i am going very soon for Weistec stage 2 anyway.... just opened a treat for more knowledge and interest

it is hard swap 4 matic trans and m157 engine ?

CarHopper

Personally, if there was such a thing as a TT setup for the c63 that was in production I'd probably go with that over a S/C. TT's can just make a ridiculous amount of power and the sound of a turbo spooling up and screaming through some EWG's gets me rather excited.

Pretty sure the OP was intending something towards the M156 engine.

There isn't any room. The only chance MAYBE is something underneath. But the amount of work that would go into it would be insane. There is a thread in the CLS55 section where someone did a TT swap instead of the S/C and that alone was quite the process.

alpha26

+1 you never compere turbo spooling and power personally i think on GT28 turbos it will be beast

madru17

Yes please

skaarlaj

Aside from turbo lag, no blower on earth will compare to a turbo's hp at a similar boost level. And it also takes less fuel to make the same amount of power in a turbo car, as a blower motor that makes 500hp for example, is actually making a lot more power at the crank, but is being consumed by driving the supercharger, so you'll never see to measure how much.

skaarlaj

A decently matched turbo with an automatic with a lot of stall speed is a tough act to follow at the drag-strip. If it takes forever to spool, you may lose a lot of races to vehicles with less power, if you don't know how to stage it correctly though.

I actually think a good centrifugal blower kit would enhance these engines original "rev happy" power-band though. Vendors are you listening?????

alpha26

Turbo lag !? cmon man how come on v8 6.2 engine i haved gtr with hta30 and produce 1250whp full power open at 4200 and this is just v6 3.8 liter as i told gt28 will produce about 700-750 whp on pump not mention race fuel )

skaarlaj

There's also not any room under the hood to do anything drastically different tha what's already there, aka, no room for a turbo. I suppose you could go underneath, or out back, but I've never really seen those types of kits produce ground pounding power though.

skaarlaj

Any track times on this obviously powerful beast?

alpha26

no man , only road racing ))) just recently sold )) should be run about 8.9 on 1/4...

skaarlaj

I'd say if you're looking for that kind of performance again, The c63 platform may not be for you. Perhaps 03/04 Cobra? I have heard of supercharged C's into the 10's though, but I doubt any 9's. Even with yet more power, the stiff nature of these car's suspensions and not being awd probably wouldn't warrant much better times that are already out there.

alpha26

no , am not looking c63 with this kind of power ! i looking for Daily drivable c63 with 650/700 whp

as performance side Supra will be best

charliekay

If you want a C63 with 650-700whp then you will need to go a Stage 3 kit.

The Stage 2 kits makes 670hp crank, which is ~550whp (alot of dynos I have seen for Stage 2s are around 535-545whp).

chrisridebike8

Duh. Coming from the IS300/2JZ world I should have known that. And I love the sound of turbo spool and blow off valves. I can't imagine a twin turbo M156 with open dump pipes from the wastegates. That would sound insane!

jrcart

HP is not the issue, the transmissions in these cars are the issue. All the hp in the world won't matter becuase these transmission can't hold it. You can take a Weistec built motor and one of their stage 3s swap out to a smaller pulley and make 1400 hp but the trans can not handle it....trust me I know lol. The transmission continues to be the weakest link in these cars, making power is not the issue, a Weistec blower can give you more than you can ever handle so there is really no need for a tt that migt make 10%more peak power than a Weistec blower, kinda like a 15 inch ****, impressive but useless.

If anyone is interested in knowing how exactly how much power these cars can handle take a look at my sig becuase all three cars are maxed out, I can make way more power but the trans cant handle it. All three have three different versions of the AMG 7 speed, CLK has a tc, C has a MCT and SLS hac DCT. I have spent more on beefing up the tranny in the CLK than most you guys paid for your C63's new.....get what I am trying to say about hp not being the issue here?

CarHopper

Can't the Weistec tranny hold some good power though?

jrcart

For sure, it handles way more power than the stock trans. The Weistec bullet proof trans is a must in my opinion and money well spent. Weistec can tell you the exact power each trans can hold before needing the upgrade. In addition to being stronger it also improves shift firmness, nice solid shifts.

Ingenieur

If someone has $$ to burn
Put the SLS DCT transaxle in the C63
While at it lower the engine 2" and move it back 4

The thing would handle amazingly

CarHopper

Well surely that trans can then handle a couple of little turbos if that was possible. Like the OP said, some gt28's or gt30's on mild boost. Just push the turbo's up to what that tranny is designed to hold.

jrcart

Yes but why?? Why reinvent the wheel? You will still be strapped to the same hp and tq limitations on the trans whether it be a tt or sc.

roadtalontsi

if all your looking for is 700hp level than no point. the blower is a better option. Instant torque off idle (this is what makes it great for everyday use). NWhere do you spend most of your time at ? 800-2000rpms. I can be at 1500rpm, hardly give it throttle and it pulls away from traffic like they are standing still effortlessly. no lag ever. The top end is not running out either. Turbos would be cool, but in an engine this cramped it's just not the way to go. Good choice with the hta turbos. Forced performance makes great stuff (local to me too). Ive got a hta 3794r on my supra. It's a beast. Although id never say it's a better platform than the gtr. As for overall drivability, usability a 1200whp-1500whp gtr will out perform that level of supra all day everyday. That hp level in a supra is savagery and tons of wheel spin unless on big slicks, not to mention the other sacrifices of a triple carbon clutch, 3.4L stroker, laggy 80mm+ turbo etc... The only other import street cars in that realm is a tt gallardo but they cant launch without breaking.

also to add, gt28/30's are way too small for this engine. They'd run way out of efficiency. These motors move a ton of air specially at high rpms. Boost is a measurement of restriction not power. My 3.5L esprit has t25's most upgrade to gt28s. You'd want some 55-60mm turbos minimum but then the there'd be noticeable lag and 1500whp+ capability with proper octane lol. come to think of it, i think id like to see someone do this on a dedicated drag car with a powerglide or something, at that point you might as well run 70mm+ turbos and lay down a good 2000whp.

Jrcart whats weistec's thoughts on the limit of the block/crank before coming apart? Are all your cars still running the stock 11.3:1 compression ratios?