Chipping Opinions

[Ractive78]

Im going to send me p28 ecu off to get chipped for a jdm itr. Does anbody have any suggestions on some good specs, like when should vtec kick in, rev limiter, etc...

 

[AllMotorMonster]

If you have a stock engine I suggest making sure the ecu chipper set's your redline to around 8800, because at 9k you get valve float.

VTEC, have it set around 5300.

 

[Ractive78]

Would I get valve float at 9k in an JDM Integra type r motor?

 

[pills_PMD]

i would agree w/ the 8800 rev limiter.
as far as the VTEC point... 5300-5500 would probably be just fine.
do you plan on running a VAFC or other type of controller at all eventually?

 

[Ractive78]

Maybee, do you think I should get one?

 

[AllMotorMonster]

Originally posted by Ractive78@Mar 11 2003, 02:13 PM
Would I get valve float at 9k in an JDM Integra type r motor?

Or close to it.

 

[pills_PMD]

it will def. help and not hurt. then you can fiddle w/ the VTEC x over and find one that is suitable

 

[liquid00meth]

Vtec should be placed where the 2 torque curves cross. (ie first cam and second cam)

 

[pills_PMD]

if he's buying a chipped ECU, i doubt he planned dyno time lol

 

[liquid00meth]

Duely noted.

 

[pills_PMD]

word! :woo: lol

 

[Pootie]

probly a stupid question, but what do u mean by 'where the two torque curves cross'?.....isn't there only one curve on a dyno chart?....please enlighten me

 

[pills_PMD]

set the vtec crossover to 8K and make a dyno run.
then set it to 3K and make a dyno run

wherever the 2 curves meet will net you the most area under the TQ curve.

 

[Ractive78]

the stock itr ecu makes vtec kick in at 5700. Should I leave it at this, or engage sooner, like at 5400?