Club G40 Forum
Technical => Engine and Transmission => Topic started by: capri-green-g40 on October 11, 2022, 01:28:40 pm
-
HI IM PLANNING ON TWINCHARGING MY G40 BUT IM UNSURE WHAT POWER A STOCK INTERNAL ENGINE CAN SAFLY HANDEL AS IN THE TOP END IT WILL BE EFECTIVLY A TURBO G40 AND IM NOT GOINING TO BUILD THE BOTTOM END INTILL I KNOW MY CONSEPT WILL WORK
ANY HELP WILL BE GRATLY APRICATED
ALEX
-
iv done a bit off digging and found that around 1.2 bar is as fat as most turbo engines go on stock pistons is that true as I'm really not sure?
-
I ran 21psi (which is about 1.45 bar) on standard pistons for a few years. I did also have water/methanol injection too.
This youtube video taken on the rolling road after we'd finished doing some mapping is with that setup:
https://www.youtube.com/watch?v=OxirX8L4wjE
Didn't have any issues, I put in forged pistons because I wanted the extra cc and comfort of knowing that they'll be stronger.
-
when you say twincharging do you mean using a smaller turbo and a larger turbo or using a supercharger and a large turbo?
To be honest in either case, I'm not sure the effort required would be worth it. you could use something like a k04 or a hybrid and get big power without much lag really. I'm still using a k03 but my aim is to have a car that goes well on track days and doesn't blow up (too much!) rather than chasing numbers.
-
thanks for the response
its not really about chasing numbers its more along the lines of something interesting to try and see if i could get working well to deal with my own curiosity although I'm well aware its completely pointless as turbos are so efficient now
-
it'd certainly be interesting to see.