I have a 98 Integra GSR with ITR cams/springs, Skunk2 mani. etc....
Currently running on a 97 ITR ECU and I have no problem... I was wondering if it was safe to crank it to 9000RPM?

Thanks!

 

Hmmm, tell me when your engine blows, no but good question cause it seems like you have the necessary mod to do that, may be.


[Modified by Dr. RAB01GSR, 11:37 PM 10/7/2002]

 

You'll just be making more noise, no power.

 

Not sure but I don't think that you should get up that high very often. I heard that the bearings wear out a lot faster and may need replacing within a year or so.. Or was that at 9,500rpm.. Sorry forgot... but anyways it can't be good all the time right?

 

theres no real reason to with your ITR cams...as far as I know, they dont make to much power over 8500.

 

Nice name...

Unless you get all that dyno tuned, I don't think it would be wise to rev it to 9k. Besides, even if you get it tuned, 9000 rpm would most likely be below peak hp and torque.

 

Type r cams loose hp after 8000-8200.. and stock (270cc) injectors would run max past ~ 8500 - you can increse fuel pressure but that will only put more stress on everything, a better way is larger injectors and hondata or whatever other emc... and i'm not sure if stock ecu can run after 8500 anyway..

point of revving that high? no point.. other than you can shift where you would hit rev limiter before..

 

with those mods there is no point to run it that high.

maybe move the rev limit up 100-200 rpm however (from 8000).

 

With this set up , I've run 14.23@99.86 last saturday on street tire (crappy Toyo FZ4). If i could get it to 9000 RPM ... i would not shift onto 4th gear...

My peak HP was 172 at 7900 before the skunk2 mani ... I know the car does'nt make power past that point... but the I should gain by shifting at 9000 only because it will get on higher RPM on the second gear,third etc...

I only need to know if it will blow

 

For shifts into second and third, try shifting at a lower rpm, say 8200 (I don't know where it makes peak hp/tq, so I'm just taking a wild stab at it). I'm sure you'll stay in VTEC when you shift. If you can stay in 3rd until the end of the track, I guess that would be fine. At what rpm in 3rd are you as you approach the end of the 1320? If it's around 8k, don't shift anymore.

 

97 itr ecu shouldn't let you rev that high. Springs aren't made to rev that high either.

Tom

 

i wouldnt recommend it

 

No,your gonna destroy the motor,and the power curve drops off after 8200 to 8400.

 

You want to possible destroy your engine only so you can be a little faster in the 1/4 mile? Is it really worth it?

 

if you got itr gearing.. you'd still be shifting into 4th.. at least it didn't change much for me in 1/4 mile... only advantage is when trying to hang in the gear for longer.. and rev it higher instead of hitting rev limiter..


[Modified by vtec.dc2, 3:22 PM 10/8/2002]

 

comptech / realtime makes power to 9 grand in their cars.. so it is possible to make power that high(w/ itr cams).

if you have ITR valvetrain, revving to 9 grand is no problem.


[Modified by 94goldjungsr, 12:27 PM 10/8/2002]


[Modified by 94goldjungsr, 12:28 PM 10/8/2002]

 

i wouldn't recommend to rev up o 9K on comptech ecu alone

 

Where did I say comptech ecu...

 

my bad.. before you edited i though i seen comptech..

 

revving wears out your motor plain and simple. take two of the same engines...one run from 0-4000rpm all the time and the other from 0-8000rpm. Guess which one will wear out sooner?

The TypeR has a much more balanced crank and better bearings (F1 technology). I would go ahead and better balance your crank and throw in better valvesprings (like portflow).

Get some dyno time and TUNE >> Your cams may make power up that high...and they may not.


[Modified by Tweakmeister, 4:17 PM 10/8/2002]

 

If it's only for the track, go ahead
With my JUN 3 revving to 9200 was so a big advantage (no need to shift 4th)
Ok itr cams don['t make same power, but I'm sure it will help a lot to save a shift time...
Maybe you are aiming for the 13' ? so try it

 

I agree

Dyno the car to get the max power out of your mods. Its the only way...

 

b18c1 bearings were made w/ the same technology that the itr ones were.

Tom

 

really? for all years?

 

From what I understand, yes.

But the itr crank is like 10way counterbalanced to the gsr's 4, iirc.

Tom