searched around and found very little info with mixed reviews as to exactly what to do in order to dyno the SRT-6...mercedes are easy, so i need some feedback on this before i can dyno this car in the morning...thanks!

these are the 2 pieces of info that i found, is there anything else that can be/should be done?

use the star diagnostic system to put it into dyno mode (i don't have this)

or pull fuses 17 and 18...does this allow you to run all the way up to redline?

 

To the best of my knowledge the ONLY way to get into dyno mode is by using the STAR system.

Pulling #17 and #18 works if you want to do burnouts....but not for exceeding 5000 rpm on a dyno. I KNOW using this method will not defeat the 4200 rpm stationary rev limiter, so I can't see it letting you get the full rpm range on a dyno.

The only other method is to spin the front tires.....never tried this....seems kind of dumb/risky to me when you're on a dyno!

 

probably not the answer you are looking for but...

the dyno restriction was removed by SI when they tuned my ecu

 

looks like i may try to borrow a star diagnostic system...

 

Erick we just dynoed my car saturday.

We were able to hit 5800 rpm buy pulling fuse 17 and 18.

 

did you hit the limiter at 5800rpm's?

 

Yes, Alamo(Brice) was hoping it would rev higher than the 5800 rpm limit as the curve was still climbing.

 

what did you put down at that rpm?

 

With BDJ's intake and your spacers 301hp and 306tq. 81 degrees out. No fan.

 

those are good numbers! is that corrected or uncorrected? i would love to see the graph on this...

 

I pulled fuses 17 & 18 and I was also able to hit 5800 RPMs on a stock car with stock ECU.

The trick is trying to get the car NOT to downshift, which makes your curve look funny because you can't go full throttle until you are at like 4000 RPMs or more, otherwise it will kick down a gear. I guess you could try to disengage the kick-down/detent, but I'm sure it is electronic.

The problem Apkano has it based on 6spd cars only as far as I know, which means it is not an SRT issue.

My stock dyno numbers are in my sig, on a dyno-jet, 90%+ humidity and 90* air temp (actually rained for a few minutes during cool down).

What kind of dyno were you on 240M3SRT?

 

right, i am used to the kick-down issue because this is the same drivetrain as the C32...

 

I wasn't sure if the 'dyno mode' let it hold in a gear for ya or not...I guess I always assumed it did.

SQ

 

i was on a dynojet as well...and my curve looks pretty nasty down lower.

 

Even if you don't hit the 'kick down switch' while on a pull, the engine load will determine if the trans needs to kick down.

Usually you can ease into the 4000 range and be on the floor by about 3800. The torque curve is still pretty flat and your peak HP numbers will be accurate.

Cheers!