Hi all!
Greetz from Russia, from Moscow
Guys, I need your help.
I think only you can help me.
I have read many topics, but could not find answers to my questions.
I have Chrysler Crossfire and I want to make some modifications. You know them well.

1. 74mm Throttle Body
2. Dual (single) Needwings CAI
3. Sport Exhaust
4. Lightweight pulleys
5. Reprogramming ECU

Transmission at Chrysler Crossfire has a base index W5A 330 and this means that the maximum torque is 330Nm (or 243 ft lbs).
I could not find statistics about the growth of torque and horsepower after these modifications and how much it is safe for the transmission.

Please, guys, help me. Explain the details.

thank you very much!

 

That would be a max of 243 ft lbs? Seems a little low

 

It's been established that the torque rating is incorrect thanks to LantanaTX who put a V8 in and mounted it to the stock NA auto.

 

You mean that the maximum torque can be much more than 243 ft lbs on the stock transmission?

 

Yes, stock the V8 is 350 torque

 

Omg, this is very good news)
Now I can safely make these modifications.
What will be the results, it is interesting.

 

You will have no problem with those mods, the most heavily modded NA will never need to worry about the tranny until forced induction, and even then it will only be a problem if it's massive amounts of boost.

 

Actually, that's incorrect. The trans software in these cars limits the amount of torque the engine is providing based on input from the transmission, wheel speed sensors and ESP accelerometer. Lantana's car never put down more power than the trans could handle, hence why it didn't destroy it's self during the time he owned it. And for what it's worth, with a modified TCU where the torque limits are raised, a stock 32 motor will cook a W5A330 in about 4-5 months.

 

Didnt know that.. But if the trans was rated at 243 ft lbs and Bob's car was at high 200's, if not low 300's ??? Can the TCU limit the torque that much?