Have dyno results for the CT27/440 ROM Tune...

[kblake]

Originally Posted by mr2gq

2 or 3 shops in the US that can tune a mr2 ecu huh LOL? I seriously think ur wrong on that one. Now granted I might have forgot that tuners aren't where everyone lives. Which is maybe mopowers problem, but here in GA they're are plentyful.

I don't think you understand what is required to tune the stock ECU, and since you seem to be more interested in being right, than in being educated, I won't tell you. I WILL give you a list of all of the shops that have ever had the capability, to my knowledge, to get you started:

1) ATS
2) Toyomoto, in FL
3) UPRD in Torrance, CA (no longer in business, afaik)

Let's see if you can add even ONE name to that list.

Originally Posted by mr2gq

And if you got almost 100 more hp just from going to a rom from a stand alone they was seriously something wrong with ur tuner

Read his post. He went from a CT26+standalone to a CT27+ROM tune.

Ken

[mr2gq]

Yeah well obviously there was something wrong with his turbo too cause I got a ct26 and it doesnt drop to 10psi when it gets to 4K rpms. Im not interested in being just right. Maybe its the otehr way around you want to be right. I didnt say it was easy for just ANY tuner to tune it. It takes someone who knows what they are doing cause tuning a car that isnt OBD compliant is harder. Doesnt mean theres only 2 places in the US that can do it. Have you called every tuner in the US and asked them?

[kblake]

I can't speak to the health of his turbo.

The MR2 air/fuel and timing maps are on the actual CPU chip, not in outboard ROM like other cars. The CPU has to be removed from the motherboard, and replaced with a Techtom ROM board. You also have to have specialized ROM tuning hardware and software from Techtom in Japan, and know how to use it. Not many shops are willing to invest that kind of time and money to tune a 13-16 year old, low volume car.

Ken

[mr2gq]

Hmm JET offers a rom for it
JET Performance Products, Import & Domestic Performance, Performance Kits, Fuel Systems, Transmissions
Which would mean most tuners who are reputable tunes and use jet products can tune it for you

[Bern]

Originally Posted by mr2gq

Yeah well obviously there was something wrong with his turbo too cause I got a ct26 and it doesnt drop to 10psi when it gets to 4K rpms.

Not sure if you're talking about what psi it drops to, or if you're saying your ct26 doesn't drop any boost...because the ct26 CANNOT hold boost till redline. If you're talking psi, then I'm not sure, mine drops to .5 bar at around 4500 rpm.

[Bern]

Originally Posted by kblake

Read his post. He went from a CT26+standalone to a CT27+ROM tune.

Ken

I'd bet that something was way off from a healthy setup before getting the 27+rom, it's not common to see a 100hp increase just by getting the ct27 and rom. His standalone tune was probably wrong or the turbo was f'ed?

[mr2gq]

Im not say it wont drop none im saying to drop to 10psi at 4K rpms seems like theres something wrong cause I know before mine spun a bearing and i put hte new rebuilt 26 on it wasnt droping to that much. Should the mr2 with just bolt ons with out a tune be at 200whp?

[kblake]

Originally Posted by mr2gq

Hmm JET offers a rom for it
JET Performance Products, Import & Domestic Performance, Performance Kits, Fuel Systems, Transmissions
Which would mean most tuners who are reputable tunes and use jet products can tune it for you

I don't see an MR2 Turbo application listed?

[kblake]

Originally Posted by Bern

I'd bet that something was way off from a healthy setup before getting the 27+rom, it's not common to see a 100hp increase just by getting the ct27 and rom. His standalone tune was probably wrong or the turbo was f'ed?

The CT27 alone, on a bone stock 93T ATS tested, added 35RWHP:

http://www.atsracing.net/10psict27vs...kecu_small.JPG

Then they added the tuned ROM, and picked up about another 36RWHP:

http://www.atsracing.net/romtunevsstock135psi.JPG

So you're right, 100RWHP is not typical, but 70RWHP is completely normal.

Ken

[Bern]

Originally Posted by kblake

The CT27 alone, on a bone stock 93T ATS tested, added 35RWHP:

http://www.atsracing.net/10psict27vs...kecu_small.JPG

Then they added the tuned ROM, and picked up about another 36RWHP:

http://www.atsracing.net/romtunevsstock135psi.JPG

So you're right, 100RWHP is not typical, but 70RWHP is completely normal.

Ken

Yup, that's a kick a$$ upgrade, especially for the money...

[mopwer]

Originally Posted by kblake

The CT27 alone, on a bone stock 93T ATS tested, added 35RWHP:

http://www.atsracing.net/10psict27vs...kecu_small.JPG

Then they added the tuned ROM, and picked up about another 36RWHP:

http://www.atsracing.net/romtunevsstock135psi.JPG

So you're right, 100RWHP is not typical, but 70RWHP is completely normal.

Ken

The previous pull was also on a Mustaing dyno which are notoriously low when compared to others.

Greg

[kblake]

Originally Posted by mopwer

The previous pull was also on a Mustaing dyno which are notoriously low when compared to others.

Greg

Good point, depending on whether the operator had monkeyed around with the calibration of the dyno at all. In any case, the Mustang results are not comparable to Dynojet results.

Ken

[Ben]

So Dynojet dynos are the most accurate?

[kblake]

Originally Posted by Ben

So Dynojet dynos are the most accurate?

They are the most consistent, from dyno to dyno, and day to day, especially if you use the uncorrected numbers.

[Ben]

Good to know

[mopwer]

Well, the dip in torque isn't the ECU. I'm checking my MAF now.

Greg