I know there has been lots of 2nd and 3rd hand posts and info about the 97 mxt ECU's. Can we get some hard data from you on this product for example:
what ALL has been changed?
what is the rev limit?
how much advance?
all the hard info we need to make an educated choice. please give us some info.
thanks Gary

yeah he never said exactly what was changed
I wanted to know if the EGR checking was removed etc..
I know the rev limit was upped and so was timing but how much etc..

Yes please gary can you give us like timing was upped 10deg. at WOT etc... This question has been asked many times and a full answer was never given

I tested the ECU, so all the information i have IS hard info. The rev limit is 8200RPM. Max timing is 27* at WOT. EGR and after-cat O2 checking is removed. The partial throttle fuel trims are backed down a little. it made 9wHP after a max of 20 minutes of run time on a car with nothing more than a CAI and a welded on N1 muffler.

You'll never get numbers, graphs, comparisons of EXACTLY what was changed because the modification is proprietary property of Howell Automotive.

what was timing at WOT before the new ecu was installed?

Was it 17 degrees advance and with the new ecu it was 27 degrees advance on the nearly stock vehicle.

I just need to know how much spark advance a stock 97 2gnt has at WOT in 3rd/4th gear at 7000rpm.

Disregard, I finally found some info in the archives. It did not pull up the first time....thanks anyway.

Looks like approx. 20 degrees advance on 2gnt(WOT/3rd gear/max rpm).

thanks dino!

8200 RPM?? I thought i read somewhere that it was impossible for our engine due to fuel to pass 7800rpm??? Like, if we got the aftermarket ignition, we couldnt go past 7800.

Jon

1997 Eclipse RS

14.21@101mph 10/4/02

MODS: 8.8:1 JE Pistons / Eagle rods / Stage 1 Hahn turbocharger / Melling Oil Pump / Autometer 5" tach / 4 JL 12" W0 subwoofers / Clarion 230w amp / short shifter mod / GReddy EVO exhaust / custom 2 1/2" downpipe / no cat con / CM Stage 1 / 30lb Mustang injectors / TurboXS MBC / 1G SMIC / Eibach Sportline springs / KYB GR-2 struts / GReddy 52mm EGT / A'PEXi Super AFC

with a well built motor and head you can rev that high.

Oh, and Gary. Do you have plans on making a set-up for auto 2gnts?

Depends on how the MTX versions sell.

I think the spark cut was at 7800... I didn't think that the cars were really able to rev to 8200, but I knew that thats where they put the limiter in the ecu. Does it acctually rev to 8200 Dino?

Like Dino said he has first hand knowledge, and ye sis actually is 8200 they did dyno pull all the way from my memory.

One who displays himself does not shine.
One who justifies himself has no glory.
One who boasts of his own ability has no merit.
One who parades his own success will not endure.
- Lao Tzu

Are you talking about spark cut on the stock ECU? Wait...Yeah, fuel cut hits at 7000 and spark at 7800. I think that sounds right, unless my car's fucked up. Oh wait, i'm sure fuel cut is at 7001. Just to say i've seen redline once in my life. That's about the gayest shit for our engines....I get to ride along in my friend's 1g turbo and watch him rev near 8 grand.



Jon

1997 Eclipse RS

14.21@101mph 10/4/02

MODS: 8.8:1 JE Pistons / Eagle rods / Stage 1 Hahn turbocharger / Melling Oil Pump / Autometer 5" tach / 4 JL 12" W0 subwoofers / Clarion 230w amp / short shifter mod / GReddy EVO exhaust / custom 2 1/2" downpipe / no cat con / CM Stage 1 / 30lb Mustang injectors / TurboXS MBC / 1G SMIC / Eibach Sportline springs / KYB GR-2 struts / GReddy 52mm EGT / A'PEXi Super AFC

you guys do realize that both the spark cut AND fuel cut are controlled by the ECU. so if the new rev limiter is at 8200rpm then that's where it's at, be happy, and quit your bitchen/questioning. :)

At least you don't rev/shift at 6,500 RPM!!!!!!

um...shift points on 96+ auto is controlled by the ECU isn't it? PLEAS PLEASE PLEASE make an ecu for ALL 2GNTs! :'( :P :thumbsup

ECU controls rev limit, but the TCU controls shift point. So with an auto you need to reprogram the TCU as well or it won't matter.

1997 Eclipse RS (in winter slumber for head gasket repair and other projects)

He who knows men is clever; He who knows himself has insight.
He who conquers men has force; He who conquers himself is truly strong.
-Lao Tzu

Injen CAI, AFX 55mm TB, P&P Intake Manifold, Crower Stage 2 Cams, Hooker Header, GS-T Muffler, AFX UDP, Apexi S-AFC

>ECU controls rev limit, but the TCU controls shift point. So
>with an auto you need to reprogram the TCU as well or it
>won't matter.
>

If that was true than I would be able to run the AFX ecu except I wouldn't have a rev limiter. It would just shift like it always does at 6500.

My car is a 96. only 95's had a seperate transmission controler. Which means Gary's mad scientistes would have to do a little more work with my ecu.

**sniff sniff** I'm still waiting for my AFX ECU :-(

Waiting with money in hand.

\
>I wanted to know if the EGR checking was removed etc..

Yes

>I know the rev limit was upped and so was timing but how
>much etc..

Yes, to 8200

i just have one quick question. can this be used with boost. one day i hope to be running stage 3. could this safly be used with a stage3 turbo. thanks for anyhelp


dam i would never ba able to think we would be able to rev to 8200rpm safley. so once you put this in. thats all you need and then you can go upto 8200rpm with out any other mods

how much is this ecu.. i dont remember.... whats the price with core and without core.. gota do emissions :)

i think its a few hundred dollars. but from what i've heard, its well worth it. 10 whp. a cai is like 150 and it doesn't put down near that much.