I have a 90 RS basically stock integra. It will not be stock for long but I am wondering if the ECU chip that enables the max RPM to be 8500 is really worth getting unless you’ve already added things liek cold air intake, catback exhaust and such…
Thanks in advance for the input.
You MIGHT wanna do some head work before you start revvin to 8500…
the benefit will be very minimal, you may or may not even feel a difference. If you had a vtec motor then you may get more of a difference, but still very little
and like 90RioGS said, you’re not gonna want to be reving past the stock redline unless you build up the valvetrain and bottom end components to be able to handle that kind of strain.
You MIGHT wanna start savin up some money for a new motor when u spin a bearing and/or bend some valves. Then you realize. Then you beat yourself unconsious when you realize it was all in vain cuz you lost alot of power up there 
LOL I swear I am not cRaZy! hehe. Anyways I figured that having that kind of redline 1. would’nt create much of a difference in power… and 2. would f*ck up my car. If you had tons and I mean tons of mods like turbo/superchager, air intake, nos, ect ect… would it then even be much of a needed mod or is it still b.s?
Just curious and bored.
chipped ecu’s are NOT BS. They are vital in many setups. There are 2 basic reasons to get a chipped ecu:
- better fuel/timing curves
- raised redline (and in the case of vtec motors you get a different vtec engagement… of course you should tune that w/ a vtec controller anyway)
With a stock motor the fuel/timing curves and the stock rev limit are just fine. When you start modding the motor it starts needing more fuel and more spark… thats where that comes in.
The raised rev limit is essential for honda motors. Since we have low displacement engines its hard to make much power in the lower revs, thats why our stock motors rev to 6.5k, whereas that would be the redline on a very built up older V8. The stock motor is not only not built to go above the said rev limit, its not going to make power up there–its just not built to make power there. When you start adding stuff like cams, header, exhaust… the power band changes a little, and now there will be gobbs of power up top… that unless you build your engine for will not be available to you.
If you are running aftermarket cams and stock redline you are sort of selling yourself short because the cams are made to continue making useable power for another 1.5-2k rpms. Of course most of us just run the stock redline for long enough to save the money and build the rest of the engine… then we rev higher.
Thanks for the reply. All made sense and I like the detail. Bascially note to self that if I get into major mods a different ECU chip should ocme into play…
Thanks!
Originally posted by Sirus
If you had tons and I mean tons of mods like turbo/superchager, air intake, nos, ect ect…
Yah, NOS lets you rev to 8.5k cuz the nitrous-oxide lubricates the piston rings thus reducing friction making revving high safe :roll: :crazy:
Originally posted by notecLS
[B]
Yah, NOS lets you rev to 8.5k cuz the nitrous-oxide lubricates the piston rings thus reducing friction making revving high safe :roll: :crazy: [/B]
i don’t think thats what he meant by that. he was just wondering if with lots of mods a chipped ecu would actually do anything.
Originally posted by 91IntegGS
[B]
i don’t think thats what he meant by that. he was just wondering if with lots of mods a chipped ecu would actually do anything. [/B]
heres a quote from him:
I mean tons of mods like turbo/superchager, air intake, nos, ect ect…
everything he listed was FI, so when he says “ect (etc)”, hes refering to other FI methods. You can make pwoer at almost any rpm with enough forced induction :gay: