carguyshu

its not the turbos you should necessarily worry about, its the other components. if the only way you are making more power is with more boost, then you are going to create more heat. the standard SL65 chargers are small and spool up quicker, which creates a lot of torque, but causes the HP to flatline out quite a bit. this is one of the many reasons brabus/black series/etc. upgrade other components.

BlownV8

Better flowing turbo manifolds with more efficient turbos will make more power at lower boost levels. One member went to a single turbo conversion but these cars need the low end boost to get out of their own way from a stop.

carguyshu

exactly

black-series

Well I think it is safe to say that the 800 hp package from speedriven is far from the truth, without serious hardware modifications like manifolds and turbos these amounts of power are simply not possible, no matter how big the intercoolers are.

V12TTenthusiast

Whats in the 800 package? I know from exhaust/intakes/tune you can get 630-640 rwhp. With billet turbos someone with there kit made 690 rwhp which is billet turbo/exhaust/intake/tune at that point you will be close to busting your trans. I did port and polish cylinder heads and billet turbos, the momment I did that the torque converter went bust. Decided to do a pro torque tq converter and a southern hot rod transmission.

But if I remember right our cars have a 17-18% drivetrain loss so at 800 crank thats like 656-664 rwhp. There was an S65 that got their kit from speedriven and he got 690 rwhp so 800 seems duoable if my converison number is right.

black-series

Do you know what was included in the kit the S65 got? The new 800 package doesn't seem to include turbos, only intake and intercoolers, this is why I highly doubt it is possible. With turbos it should definitely be possible.

V12TTenthusiast

If its an M279 car I could see maybe 800 from tune/exhaust/intake but not an m275 car. Racehorse and I pretty much have the same mods in our sl65/cl65 and we got 630-640 rwhp with just tune/intake/exhaust. Its prob more like a 780 hp kit than 800 for an m275 when factoring 17-18% drive train loss

black-series

Well, that is still impressive, I would not have thought. No reason to argue about 20hp, if it really were around 780 hp this would be pretty impressive still. I just could not imagine how adding exhaust, intake and intercoolers were able to add 100 hp on top of a tune only which is usually around 670/680 hp. I just don't understand how this works. Could somebody maybe explain? Lets say the engine can breath a little more freely and stay cooler, that is all well and good, but how does this add up to 100hp? Does this allow you to run a much of a sharper map? What exactly is producing that amount of extra power?

V12TTenthusiast

Take a look at our down pipes and our airboxes. They are very restrictive. You can do Intakes without downpipes but not the other way around. I did exhaust before intake an I actually lost Hp. Turns out intake side was choking up so bad and exhaust end was so free. If you look at the airbox its a very narrow going from the filter to the Turbo. 3 in CAI and Downpipes really helps the car breathe. If you do the mod I highly suggest upgrading the LSD because with those mods the AMG LSD wont do the job.

blackbenzz

hey how have you been? What ended up happening with your car?

V12TTenthusiast

Been busy as hell. Just finish building my house in Potomac and picked up a side job after I finished grad school so Im doing Asset Management and a CRE Investment sales broker.

When I did the heads and billet turbos my tq converter dediced to go out. Since Trans had to come out anyways I did a SHR trans and Pro Torque Tq Converter and converted my car with 33 way adjustable coilovers with no ABC light at all. I just need to finish up tuning but Ive been soo busy and Paul seems to b3 swamped with those TT lambo builds. Im trying to finish it up this summer so I can move on another car as a project but I'll keep the SL still.

g60wall

Hey bro I'm in D.C. Area all the time with my 65 we could link up. I know these cars in and out!!

Tommyboy928

hi, how its with traction, at what time the tires manage sit on ground , SL 65 have differential lock standard

boostd

I had this package on my car with the split cooling via trunk tank. I could never run faster than 11.1 in it on drag radials.

AMG-Driver

800 Real Crank HP (measured with real losses on a European Dyno) is approx.700 !! Rwhp on a american Dynojet. The % losses is not accurate enough because the losses will not rise that much after tuning.

So no chance to reach 800 Crank HP with the stock turbos. No way.