well tonight im leaving for new york to get tuned, im getting the whole shibang done to my car as far as tuning goes. my question is i wanna bump the shiftpoints up to 7k but dont i have to have a limiter set at 7200 as well and seeing as the sunfire tach only goes to 7k wouldnt it break the need or something if i had the shiftpoint set to higher than the tach reads? thanks.
uh, no
my tach only goes to 7k and I've hit 7150 before
so are you saying i can go to lets say 7500 if i wanted even though its gonna be buried on 7k?
The tach is only a display, it in no way limits what the ecu lets the engine rev to. I wouldn't trust the stock tach at those revs, mine has a hard time keeping up in 1st and 2nd gear as it is, so it's as good a time as any to upgrade.
Good luck this weekend, let us know how it turns out!
15.3 @ 89.97mph, 14's on the way?
you can go to 8192 if you want to , i dont know how much will be left of your car afterwords though
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
stock head hates high revving.... i have heard that 7200 is the highest safe rpm to go to.... but i have also heard 7000 is the highest, and also 6800... lol
so i dont know...
|Forged 8.9:1 Wiseco Pistons|Forged Eagle Rods|HPTuners|60trim|Tial Wastegate|
|Precision Intercooler|2.5" Exhaust|2.5" Charge Pipes|630CC Mototron Injectors|
|Stock: Fuel Pump, Transmission, Manifold, TB, Head, Head Gasket, Ignition, Suspension...|
boosted.
you've got a stock head no? Risky, but let me know how well it holds up with some abuse!! I haven't gone past 6700 yet.
Nate
Evolution of Cavyboy-->C22t--> C24na--->c24s/c
1995 Cavalier W/2k1 Engine
GM S/C 13.940@99.78pmh w/2.068 60ft
Acer wrote:stock head hates high revving.... i have heard that 7200 is the highest safe rpm to go to.... but i have also heard 7000 is the highest, and also 6800... lol
so i dont know...
That's for eco's, he's got a 2.4 and I've never seen a stock 2.4 rev that hgh and walk away.
15.3 @ 89.97mph, 14's on the way?
Ian Brydon wrote:Acer wrote:stock head hates high revving.... i have heard that 7200 is the highest safe rpm to go to.... but i have also heard 7000 is the highest, and also 6800... lol
so i dont know...
That's for eco's, he's got a 2.4 and I've never seen a stock 2.4 rev that hgh and walk away.
yea i was referring to a eco, i didnt realize the engine they were talking about
|Forged 8.9:1 Wiseco Pistons|Forged Eagle Rods|HPTuners|60trim|Tial Wastegate|
|Precision Intercooler|2.5" Exhaust|2.5" Charge Pipes|630CC Mototron Injectors|
|Stock: Fuel Pump, Transmission, Manifold, TB, Head, Head Gasket, Ignition, Suspension...|
Ian Brydon wrote:Acer wrote:stock head hates high revving.... i have heard that 7200 is the highest safe rpm to go to.... but i have also heard 7000 is the highest, and also 6800... lol
so i dont know...
That's for eco's, he's got a 2.4 and I've never seen a stock 2.4 rev that hgh and walk away.
There are a number of 2.4's that are currently revving 7k+ and walking away.
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Shifted wrote:Ian Brydon wrote:Acer wrote:stock head hates high revving.... i have heard that 7200 is the highest safe rpm to go to.... but i have also heard 7000 is the highest, and also 6800... lol
so i dont know...
That's for eco's, he's got a 2.4 and I've never seen a stock 2.4 rev that hgh and walk away.
There are a number of 2.4's that are currently revving 7k+ and walking away.
Are those 2.4's stock? Or are they built with better oiling and valvetrains to withstand those extra revs?
15.3 @ 89.97mph, 14's on the way?
C24s/c wrote:boosted.
you've got a stock head no? Risky, but let me know how well it holds up with some abuse!! I haven't gone past 6700 yet.
Nate
well the car is tuned and running very strong, shifting at 6900 and pulling like a raped ape all the way. ive been running it hard like that since sunday morning and everythings been fine. look in my profile, i have 2.3 oiling system, aftermarket head parts so i have all the goodies.
How much power did you put down?
- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.
Skilz10179 wrote:How much power did you put down?
#'s and charts are in order! Glad to hear you're pleased with the results.
15.3 @ 89.97mph, 14's on the way?
Skilz10179 wrote:How much power did you put down?
will be dynoing it within next few weeks, its setup to run a 50 shot so we will see, deffinatly upper 200's of course.
ive got my limiter set at 7200 , and my shift points set to 6750
its the only way i dont hit the rev limiter
stock internal 2.4 with over 110,000 miles
BOOSTED wrote:Skilz10179 wrote:How much power did you put down?
will be dynoing it within next few weeks, its setup to run a 50 shot so we will see, deffinatly upper 200's of course.
I figured "getting the whole shibang done to my car as far as tuning goes" ment dyno tned, my bad.
- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.
Skilz10179 wrote:BOOSTED wrote:Skilz10179 wrote:How much power did you put down?
will be dynoing it within next few weeks, its setup to run a 50 shot so we will see, deffinatly upper 200's of course.
I figured "getting the whole shibang done to my car as far as tuning goes" ment dyno tned, my bad.
i simply cannot afford to get dyno tuned around my way at all, they told me they want 175 bucks a hour and quoted me anywhere from 4-8 hours so street tuning and track tuning for now it is.
in my experience i've always preferred street tuning. No need to tune extensively on a dyno unless you are planning to have a dyno queen, in my opinion the dyno is great for certain things, getting true hp numbers and finding out your cars peak power range being the most pertinent. Hope the cars running good for ya John, let me know some track numbers once you get them
"Horsepower is the Ultimate Accessory"
My guess is 240-250 with looking at your motor. Should have went 10:1 instead of 9:1 with the M45. I really really wouldnt trust a stock oil system 2.4 much past stock rev limiter. But with 2.3 pump swap, a few other oiling modifications, and some head work (stonger springs and bigger cams), I would trust it all day long, I would trust it over an eco at that point. Timing chain would need some adressing much past 7500 I would imagine.
remember i got that 50 shot to still hit so i should be close to 270whp, we will find out
