can i use forged flat tops on turbo??? if yes, what's the max on boost????
AND WHAT'S THE COMP RATIO ON FLATS???? PLEASE LET ME KNOW THANK YOU!!
i forgot to mention pistons in 0.30
OK TURBO GOING IN, KEEP U GUYS INFORMED.
Looks like you are having a pretty good conversation with yourself.... Carry on...
To answer your question, call the manufactuer of the piston or your engine builder. They should be able to give you all the info you need...
P&P Tuning
420.5whp / 359.8wtq
kanno15 wrote:can i use forged flat tops on turbo??? if yes, what's the max on boost????
forged flat tops..... hmmmmmmm........................ sure you can use them, if they're made for your motor. what's the max on boost? as much boost as you think is safe.
-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party
I am.....
And somthing tells me the CC of my chambers may be less then yours.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
Flat top pistons = Higher compression ratio
Smaller cc combustion chaber = Higher compression ratio
Higher compression ratio = Lower maximum boost level, forged internals or not.
The reason you might want to go with lower compression is the higher the compression ratio, the easier it is to develop detonation. You can only go so far with high compression before you have to run standalone engine management and 140+ octane.
The only slight advantage to higher compression is less turbo lag, but that is a negligable gain compared to the low compression options.
Currently #4 in Ecotec Forced Induction horsepower ratings. 505.8 WHP 414WTQ!!!
Currently 3rd quickest Ecotec on the .org - 10.949 @ 131.50 MPH!!!
and what's the compresion on flat tops???
With a 2000 a up 2.4 head, 9.7:1.
With a 2.3 Engine 10.6-10.0
Guess thats "High"
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
WE DO NOT KNOW.
That is NOT how engines work - you don't just pick up a piston and go "Oh yeah this'll make 11.1:1 compression..." just by LOOKING at it.
You need to figure out how much smaller you made the combustion chamber through careful measurements. This is why people who know what they are doing go to a piston manufacturer and have them create the specs and the pistons for our NEEDS.
You can't just drop a piston into your car and call it good. Not to mention we have interference engines.
Make sense now?
-Chris-
-Sweetness-
-Turbocharged-
Slowly but surely may some day win this race...
Taetsch Z-24 wrote:With a 2000 a up 2.4 head, 9.7:1.
With a 2.3 Engine 10.6-10.0
Guess thats "High"
Chris
makes sense, i've been told that you can see the dish in Stock 96-99 piston, and that you can also see the teflon coating the skirt has on the side on the 00-02 piston. that they are slighlty diff and thats true that's how i see my piston with a slighlty dish my car is 1997 2.4 block overbore .030
Chris, When I said 2.3, I ment Mine with Flat tops in them.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
yes... the 96-98 and 99-02 are different.. older has a dish, newer is flat top. see pic below for reference.
so, essentially, flat tops in you're engine are going to be stock compression. weather its the mythical 9.7:1 or the actual 9.5:1 has still yet to be tested.
I must confess... I feel like a monster!
Thank you z yaaaaaaa will keep in mind motor almost done just need to fix my gastegate my pistons original compression with .020 bore are in will se how it works hopefully great, keep u updated probably by sunday its in.
