reving to 8k safely
#31
7800 is the recommended rev-limit for a stock 4g63's valvetrain. surely people rev higher and lower, time is the only thing keeping the engine alive depending on the tune and or who tuned the car.
cams+springs+retainers will allow you to rev higher. for instance fully built 2.0 race engines are usually around 9000-9500 rpm rev limit.
fully built 2.3's usually do not exceed 8200 rpm.
cams+springs+retainers will allow you to rev higher. for instance fully built 2.0 race engines are usually around 9000-9500 rpm rev limit.
fully built 2.3's usually do not exceed 8200 rpm.
How do cams allow an engine to rev higher?
Scorke
#32
7800 is the recommended rev-limit for a stock 4g63's valvetrain. surely people rev higher and lower, time is the only thing keeping the engine alive depending on the tune and or who tuned the car.
cams+springs+retainers will allow you to rev higher. for instance fully built 2.0 race engines are usually around 9000-9500 rpm rev limit.
fully built 2.3's usually do not exceed 8200 rpm.
cams+springs+retainers will allow you to rev higher. for instance fully built 2.0 race engines are usually around 9000-9500 rpm rev limit.
fully built 2.3's usually do not exceed 8200 rpm.
We choose to stay with a 2.0l, built with the proper rod ratio to facilitate high revs. A stroker will not have the correct rod ratio to promote high revs.
CJ
#33
#35
^ depends on who you speak to, what you consider safe, and what you want out of your motor.
The whole idea of a 2.3 is to increase tq, tq drops with RPMs so most 2.3 guys aren't too concerned with screaming there motors and the ones that are concerned with revving to the moon run 2.1s.
Doug from TopSpeed said I was safe to run up to 8300 rpms with stock valve springs on my built 2.3.
Scorke
The whole idea of a 2.3 is to increase tq, tq drops with RPMs so most 2.3 guys aren't too concerned with screaming there motors and the ones that are concerned with revving to the moon run 2.1s.
Doug from TopSpeed said I was safe to run up to 8300 rpms with stock valve springs on my built 2.3.
Scorke
#36
Well I would like a 8krpm capable daily driven safe setup. If a 2.3 can do that then that's what I want. Reason for picking a 2.3 is
A. The extra trq
B. Able to rev too 8k
C. Faster spool up on biger turbo's
There my main reason.
A. The extra trq
B. Able to rev too 8k
C. Faster spool up on biger turbo's
There my main reason.
#37
It will depend on which kit you go with. In other words, it will depend on which valvetrain you're running, which pistons, which rods, and which crank. For example, AMS sells different 2.3l kits. Between them, their 2.3RR can be revved higher, since it uses different internals than their "standard" 2.3 stroker.
Furthermore, if you put together a balanced setup, then there may not be a need at all to rev out to 8K. 7500 RPM on a 2.3L GT35R setup seems to work fairly well with the stock gearing, judging from the few dyno charts I've seen of that type of setup here on the forums. If you're going with a smaller turbo (i.e. GT30, 50 trim, or FP Green), then it would definitely be pointless to rev beyond 7500 RPM other than trying to avoid shifting into 5th on a 1/4 mile run.
l8r)
Furthermore, if you put together a balanced setup, then there may not be a need at all to rev out to 8K. 7500 RPM on a 2.3L GT35R setup seems to work fairly well with the stock gearing, judging from the few dyno charts I've seen of that type of setup here on the forums. If you're going with a smaller turbo (i.e. GT30, 50 trim, or FP Green), then it would definitely be pointless to rev beyond 7500 RPM other than trying to avoid shifting into 5th on a 1/4 mile run.
l8r)
#38
2.3 Bottom end has nothing to do with B.
Thread
Thread Starter
Forum
Replies
Last Post
FS[MidWest]: 2014 GSR struts 8k miles
beetle_orange
For Sale - Suspension / Brakes / Handling
0
Jun 25, 2016 07:55 PM
FS[Northeast]: 2004 WW Evolution 8 SSL Basically Stock 40k miles NJ!!
Xene
For Sale - Cars For Sale
13
Jun 17, 2016 07:42 PM
mr2lover55
For Sale - Suspension / Brakes / Handling
0
Jan 22, 2016 07:48 PM
SSMCL9
For Sale - Interior / Exterior / Sound / Styling
2
Nov 5, 2015 08:26 AM