Hey guys. I'm posting this for a fren again. His car is a 99 Prelude type SH. The question is, he wants to get it tuned so what ECU should he be looking at? Also, will the ATTS system still work after? If not can it be removed with ease? Thank you. Thank you.

 

greddy ultimate and the vafc piggy backs are the only systems which allow the use of ATTS.

 

And easy removal is laughable. That's going to take work and money, new transmission and a block converter plate thingy..

 

Damn. I knew it. I already told him the samething. Anyways, lets say if he tune it with cromes, the only bad thing is he just wont be able to make use of the ATTS system?? Cuz honestly he saids he doesnt want to mess with greddy ultimate and the vafc piggy backs.

 

[URL] http://preludepower.com/forums/showt...54008[/URL]
I wrote that myself, its on mods you can and can't do to an SH Prelude w/o disabling ATTS. The thing is, you need the stock or Type-S ecu in place for the ATTS ecu to sync with, in order for the system to work. The stock OBDII ecu cannot be retuned, so you need an OBDI ecu to run any sort of tuning program, so the ATTS will not function. Your only tuning options are piggybacks.

If you don't care about losing ATTS, you'll have about a 60lb. deadweight in place of your intermediate shaft and unequal length halfshafts. If you want a regular tranny, you'll have to get an adapter plate, mounts, a ton of lines, fittings, and sensors, halfshafts, and I'm sure a good bit more. And if you want an LSD, you'll have to spend more (obviously). So if you're looking to do some serious tuning, just get a base.

 

Why is it that people don't care much for ATTS besides the added weight? I wish I had it in my base model for when I take the winding country roads to my parents' house.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ralleh &raquo;</TD></TR><TR><TD CLASS="quote">Why is it that people don't care much for ATTS besides the added weight? I wish I had it in my base model for when I take the winding country roads to my parents' house.</TD></TR></TABLE>

Because if you plan to go over the 220-230whp mark or so, the clutches fail and ATTS becomes a hinderance.

 

Ah, that explains it, thanks.

 

How many people actually have over 220-230 hp though.... most will never see that, no matter "what your plans are"

 

ya ummm id be happy with 200 whp on my sh

 

Thank you for your replies. I did read cruiserdude post in the other forum; thank you. I guess its up to him. I personally think the ATTS system is a downer for the SH. I love the way they look tho, thats just me.

 

They are a few small visual differences between a base and an SH, but nothing big. The side and rear pieces are color matched instead of black, the wheels look cooler, and they all come with rear wings. The interior has a good many changes as well, but once again, nothing too drastic. Considering that many bases have a wing, the side and rear pieces can be painted, and either trim can be fitted with an OEM lip kit, I wouldn't say that looks alone is a real reason to get an SH.

As far as the ATTS system itself goes, it is a joy to experience when the opportunity prevents itself, and can be quite an advantage at an auto-x or track event, especially when combined with well-chosen suspension mods. Its only a downside if you plan on making big power with the car, as the stock OBDII ecu must be retained, and even then, it won't handle much over about 250whp (or so everyone says, as its rare to make that much power with just a piggyback anyway). But if you don't plan on spending alot of money on power, and just do bolt-ons, looks, and suspension (as the majority of Prelude owners seem to do), ATTS is quite a nice feature.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mang. &raquo;</TD></TR><TR><TD CLASS="quote">How many people actually have over 220-230 hp though.... most will never see that, no matter "what your plans are"</TD></TR></TABLE>

lies

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cruiserdude &raquo;</TD></TR><TR><TD CLASS="quote">They are a few small visual differences between a base and an SH, but nothing big. The side and rear pieces are color matched instead of black, the wheels look cooler, and they all come with rear wings. The interior has a good many changes as well, but once again, nothing too drastic. Considering that many bases have a wing, the side and rear pieces can be painted, and either trim can be fitted with an OEM lip kit, I wouldn't say that looks alone is a real reason to get an SH.

As far as the ATTS system itself goes, it is a joy to experience when the opportunity prevents itself, and can be quite an advantage at an auto-x or track event, especially when combined with well-chosen suspension mods. Its only a downside if you plan on making big power with the car, as the stock OBDII ecu must be retained, and even then, it won't handle much over about 250whp (or so everyone says, as its rare to make that much power with just a piggyback anyway). But if you don't plan on spending alot of money on power, and just do bolt-ons, looks, and suspension (as the majority of Prelude owners seem to do), ATTS is quite a nice feature.</TD></TR></TABLE>

Exactly why I want an sh. <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ProjectBB6 &raquo;</TD></TR><TR><TD CLASS="quote">

lies</TD></TR></TABLE>

TRUFH