I have not long brought a type s prelude. (JDM)
its has atts. (which is a lot of fun to play with!!)


then...
I need to be able to tune it, I was thinking about turboing it.
(Great thought I thought
Hondata be the obvious choice.
(But Hondata dont support atts!!!!) <no atts = single spinner)
So now I have a pretty type s that can turn corners really good but I just cant tune it.
I was thinking about a piggy back computer. but I really want to use all the hondata features!

Now after all that, this is my question!

Can I piggy back the hondata off the standard ecu?
SO I will have 2 ecus.
the standard one will think its doing every thing but only really controling atts.
and the hondata will be doing all the real work.

what do you think?
is it possible?
I know its a lot of work.... I cant really think of any other options. do you have any ideas?

Thanks for reading (am really having trouble getting some info about this!)

 

!!!

 

I think the older Hondata versions (like a stage 4) would work with auto transmissions, but I don't know if that applies to atts. What does hondata say about it? I would say that worst case you can run 2 ecu's and let one run atts and the other run the engine. They would probably need to share several sensors though.

 

you can't use a hondata and keep atts. there's no way to make the hondata work with the p5p (atts ecu) or any other obd2 ecu not found in a k series car.

your tuning choices are: VAFC, Emanage, Emanage ultimate. the emanage is more fully featured than the VAFC, and i'm not sure what makes the ultimate, ultimate, but i'm guessing it's a little more powerful.

the drawback is that you won't get all of the cool hondata features, but the emanage should be able to get A/F pretty close.


there's also the PGM-FI system, IIRC, but it's rarer and harder to find the parts and info. "Timeracer" was using one, might wanna ask him about it.

also! once you turbo the car, and the whp reaches a certain level (approximately 250+ whp), the ATTS isn't going to work. it won't prevent the car from driving, it'll just be dead weight. If your hp goals are 300, 400, 500 whp, the ATTS is irrelevant and you can run a hondata.

 

Tto add to what Bad-monkey said but after 250 hp to the wheels the atts will disable and work like a normal non-lsd differential.. meaning your just gonna burn the one tire off.. further more the Type-s and SH tranny cant be fitted with a LSD.. and bolting a regular tranny to the SH or Type-s block will require an adapter plate and ive heard those aren't all that reliable. Bottom line is that if you want big FI power you got the wrong car to do it with or its swap time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bad-monkey &raquo;</TD></TR><TR><TD CLASS="quote">

there's also the PGM-FI system, IIRC, but it's rarer and harder to find the parts and info. "Timeracer" was using one, might wanna ask him about it.
</TD></TR></TABLE>

its called EFI PMS...i know cuz i bought it off of timeracer

i, too, have a type-SH, and wanted to tune a mild NA engine while keeping the ATTS function.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cjanik &raquo;</TD></TR><TR><TD CLASS="quote">its called EFI PMS...i know cuz i bought it off of timeracer

i, too, have a type-SH, and wanted to tune a mild NA engine while keeping the ATTS function.</TD></TR></TABLE>

ah yesssss.

good lookin out.

 

Well just as an FYI I'm going to be testing out GReddy's E-manage Ultimate system soon and see how that works. Though the EFI PMS is much cheaper and more reliable (seemingly, there's a bunch of people having issues with the ultimate) unit. Hopefully I can iron out all the bugs though *crosses fingers*. Install will most likely be sometime this weekend.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TimeRacer &raquo;</TD></TR><TR><TD CLASS="quote">Well just as an FYI I'm going to be testing out GReddy's E-manage Ultimate system soon and see how that works. Though the EFI PMS is much cheaper and more reliable (seemingly, there's a bunch of people having issues with the ultimate) unit. Hopefully I can iron out all the bugs though *crosses fingers*. Install will most likely be sometime this weekend. </TD></TR></TABLE>

Definately keep us informed on that one, once i get my header, ill be looking into fuel managment, and i was thinking of going with the emanage. Good luck.

 

just a question...

why could I not use hondata as a piggy back ecu?

why could they not share sensors?

Im not a autoelectrician but It wouldnt be that hard if I had the OBD2b -&gt; OBD1 hondata conversion harness.

 

ofcourse if I new what each pin did I could stop all out put from standard ecu bar atts information.

Thanks Jade

 

Because Hondata doesn't act as such. It wants control over everything like your OEM ECU wants to.

 

Why'd you get rid of the EFI PMS?