??
There may be some issues with how much power the drivetrain can handle .. but curious if this was ever experimented with.

Thanks for the help?!?!

 

I believe one person has done this with success.
LOTS of issues with doing this. Easier to live with the auto trans.

Search for more information.

 

Do a search on member "HDDP" and his thread for installing an SRT power plant in a N/A Crossfire with a manual six. Good Luck !

 

it is doable but there is some swapping involved i think the way the bolts line up on the flywheel is different so i think you might need to get it from a different mercedes and have a machine shop make sure it lines up right.

my opinion forget about the srt motor their is no real benefit you will get with the added headache of mating the engine to the transmission and have a bottle neck since the supercharger can only do so much. look at either adding the sts turbo in the rear like some members have done search the thread. You might also be able to get House of power install a supercharger on the stock motor. Maybe drop a v8 in the car instead of the v6 supercharged. If i am not mistaken you get around 400hp on a v8 before boost or any modding.


this is a good idea if you want it to be cost effective. Turbo will give you around 25-35hp per pound of boost and on the stock high compression motor you should be able to run around 7-8lbs of boost. Then once you are tired of being even on races with srt you can pull the motor out and change everything to forged and lower the compression ratio and increase your boost to about 12-14lbs. then when you are bored of beating srt and want to beat cars like the zr1 corvette or vipers then you can get the tvt engine block they are planning to release with 3.8l displacement instead of 3.2 and make even more power.

all you need is money and you can make any car fast.

 

I appreciate all the comments!

 

To many people have harsh words to say of automatics. As the saying goes "this isn't your fathers Oldsmobile" times have changed. The racing industry has discovered that a properly built auto far excedes the abilities of a manual. The new Ferrari F1 shifts at a speed of .083 of a second. When you can shift a manual at that speed we'll talk, but until then. Out of the hole an automatic in comparison to the manual when drivin by "an average driver" will generate approximately equal times. Also remember that THE SRT's TRANSMISSION IS NOT THE SAME as the standard Crossfires. Very performance minded.
I go through rear tires way to fast with the automatic to really want to trade for the manual anyway.

 

i agree that the new automatic transmission with dual clutch setup will blow away the manual but it is not all about going fast in a straight line sometimes it is fun just going through the different gears and being able to feather the clutch or being in a specific gear while you are going through an autocross circuit. I have never owned a manual before driven plenty of them but never as a daily driver. When i got the crossfire there was a price difference of about $1500-$2000 for an auto and in my opinion i really wanted a manual and i got to save some money so it worked out good. i think if i had the auto crossfire i would not have enjoyed it since the power on the crossfire N/a is really not that much but with manual it is a tad bit faster. i think the auto n/a and the manual n/a according to car and driver or some magazine like that said manual was faster by .2-.3 sec in the quarter.

 

I don't mind automatics as much as I mind not having the choice

 

Hey Faiz23, I just read your post and I am affraid you have been slightly mis informed on Boost and SRT's
Your figures of H.P. gains to pounds of boost are off. The stock SRT is getting about 14+ pounds of boost. I am reachinh 23-25 lbs on mine.
Secondly, I have right around 410 h/p at my crank. close to 380 at the rear wheels.
Thirdly the percentage of H.P. loss during transfer to the rear wheels is greater on a V8 than V6. More pistons doesn't always mean more speed.

 

same issue when comparing auto and manual.

 

I do agree that 6 speed manuals are fun and they are more useful with the less powerful engines. With my SRT auto when ever going for time I always choose to manually shift it. The benefit that is most aparent is the lack of that old fashioned third pedal. Shifting at the speed required shortens the life of a clutch in a hurry.
Plus Sammy Davis Jr's feet arent as fast as my Automatic!

 

True but if you read the post you'll see he isn't speaking of the Tranny only the V8 vs.V6.

 

Gotta go see you on the road.
Mike

 

Yep. Every word.

And this from a


roadster with a stick

but, a wife with a modded SRT

 

Cute little car,
Generally isn't the Guy supposed to have the SRT? Then the women buy the Miata I mean Roadster.
Mike

 

Calm down, I am only razzing you...
Mike

 

please educate me since i am still learning the drawback of turbo versus s/c i know s/c gives you tons of power down low but turbo is more on the top end once it spools up.

i know the srt run like 16-20lbs safely and some have stacked pullies to even get a higher boost. I was talking about 25h-35hp when you are using a turbo but you are right i might have been misinformed. I figured around a 15%-20% power loss to the wheels and the way i figured this is i think n/a crossfire does like 215hp but only like 175 rwhp. that is pretty good that you have 380 rwhp and 410hp at the crank some impressive numbers and hopefully with help of turbo or supercharger we N/A guys can get there.

 

Curiuos what feedback the ecu needs from the auto trans to operate.
In other applications I've seen diff fuel maps for idle vs driving.. in a manual conversion of that nature, you simply hardwire the gear shift lever to operate in drive when necessary. Anyone willing to disconnect the connection of the trans and ecu to see? If only a transmission light comes on and vehicle still runs.. there might be hope?!?!

 

hey hey hey now nothing wrong with the guy owning a stick and the lady owning a srt. it is an easy way to justify the purchase of an srt so you can drive that and hopefully teach the lady how to learn a manual and after some time you can drive the srt permanently. This was my thinking in the start getting my lady a srt but in my opinion only having 2 cars and both being a 2 seater is not a smart choice. so now i am looking at a different car. Well actually a SUV V8 twin turbo and does 0-60 in under 5 sec.

 

Looks like a Cayenne?

Now can we stay on topic???! stop thread jacking