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Honda Prelude 1997-2002

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#10 of 2482 SH by 5gen_prelude Dec 01, 2000 (8:04 am)
1st, 17 inch wheels will most likely be heavier, unless they are good quality. 2nd, the ride will be somewhat rougher because of the lower profile tires 3rd, the suspension is almost identical to the base lude, it's the ATTS that is the big difference. The tires won't make much of a difference to the handling of the car (I'm guessing this is what you are really asking). In fact, it may improve it in perfect conditions, but it will hinder it in not so perfect conditions. 4th The head unit will not work with the Acoustic Feedback Control. It must be disconnected (it probably is) for an aftermarket head unit to work. This in the end is a moot point - crank the stereo and listen to it. Number one thing they teach you in Audio classes is that everyone hears differently. Bottom line is, don't be concerned with what does and doesn't work (and I don't think it makes that big of a difference - it's not like it cuts out road noises - it simply tries its best to cut out distortion - but you can still make it sound like crap if you try). The head unit is pretty week in the lude, which is why he probably changed it. It works fine for me though, I don't listen to any system cranked (killed my hearing mixing live shows at a younger age). The specs you can find online with a bit of sifting - I don't know them off-hand. Here is some things to watch for though: Cracked seals Rattle in the sunroof Clunking sound in the trunk (It's the suspension having fun over bumps)
#11 of 2482 RE: SH by dug5 Dec 01, 2000 (7:37 pm)
5GenPrelude....thank you so much for your info. on the SH model. I really appreciate it. yeah the head unit in the car is a sony cd player w/mtx amps and 8''sub in the back...seems pretty old...I hope it's better than the stock acoustic feedback control. Anyhow, Thanks, Doug.
#12 of 2482 hello by ramon Dec 01, 2000 (8:38 pm)
can you tell me how does the ATTS work? It's not the same as the front LSD on the Type R right? any diagram?
#13 of 2482 Prelude '92 Electric problem by jeffvu99 Dec 01, 2000 (10:06 pm)
My 92 Prelude is seem to have problems with the electric...especially the air control unit is not function properly. My friend, she has the same model and her car got the same problem, too. Does anyone have the same problem? Replies to this message: james88582 (Jul 08, 2006 4:24 pm)
#14 of 2482 Dug and Ramon: by 5gen_prelude Dec 02, 2000 (7:53 am)
Dug: You're welcome - wish I had known about the dreaded shock-knock when I got mine - fortunately it's gone away for me. Ramon: Okay - the first place to start with about ATTS is Honda's site - www.honda.com. It has a pretty good explanation there of what it does. But, in a nutshell, it stands for Active Torque Transfer System. In any given turn that your car makes, the outside tires - in this case specifically the front outside tire, has to rotate more times than the inside tire to complete the same turn. With a front-wheel drive car (which the lude is), and this over-rotation of the outside tire, causes a push or understeer (basically the outside tire doesn't want to turn those extra revolutions and fights it by going straight - ie push). Now what the ATTS does, is force the outside wheel to turn slightly more than the inside tire, decreasing the tires desire to go straight. So kind of like 4x4's "...wheels that slip, to wheels that grip", except that it's not based on slippage, so much as a calculation of steering input and speed.
#15 of 2482 thanks by ramon Dec 02, 2000 (3:02 pm)
sounds almost the same as a front LSD to me.... I guess it's a fancy Honda name. Does it work well in regular driving or only work if you push teh cars in track days?
#16 of 2482 ATTS & SH by only1harry Dec 02, 2000 (4:23 pm)
The ATTS works very well when you push the car hard or near its limits. My friend has a '98 SH and we go auto-x racing together all the time. His Lude is stock and amazed me that it 3-wheels (like the Type-R) with the factory tires and has overall pretty good traction for a car that's not modified. He has won numerous trophies in the STS (Street Touring w/street tire) and Street Tire (ST) classes. I don't believe the ATTS helps in regular every day driving unless you drive like a maniac and take every turn really fast. Its suspension is identical to the base Prelude. It took aftermarket springs, adjustable shocks, & rear sway bar in my GSR to be able to 3-wheel like the SH when auto-xing. And the statement about the 17" wheels is correct. Unless they 're ultralight wheels, they can affect handling, gas mileage and create extra wear & tear on your suspension and brakes. Now someone said tires don't improve handlign. That is not true at all. Good ZR summer tires can improve handling dramatically. My friend (SH) and I put on Bridgestone RE730s on our cars and it was a noticeable improvement over the stock tires, on the street and on the track.
#17 of 2482 LSD vs ATTS by 5gen_prelude Dec 02, 2000 (10:09 pm)
There is a big difference between the two - well maybe not in the end, but it comes down to what I said at the end. An LSD is activated by slippage, the idea behind ATTS is keep all four corners of the car on the ground by preventing the car to roll onto the outside tires. Actually perhaps a better way to think of it is the world of outlaws. You've seen these cars right? The right side of the car has bigger tires than the left tires. This is essentially doing the same thing - with ATTS, you make the same diameter tire rotate faster, with the outlaws, you just make the same speed with both tires, but because of the taller tire, one rotation covers more ground than the smaller tire, thus making it want to turn left. I'll use the infamous strofoam cup example here - roll a styrofoam cup on the ground and it will tend to turn into the smaller end. So, yes in some ways it's very much like an LSD, but it's not really - an LSD prevents power from being wasted to a wheel that does not have the necessary grip in the corner to be effective, and ATTS system uses that extra torque to turn the wheel a bit faster. The latter will work in almost all conditions - AutoX being a good example, an LSD however (at least the kind you get on stock cars) will be helpful more at higher rates of speeds than lower.
#18 of 2482 only1harry by canadiancl Dec 04, 2000 (3:26 am)
I'm not 101% sure, but I think that, aside from the ATTS, the SH's suspension is different from the base model's. It's tuned more for handling.
#19 of 2482 Differences in Suspension by 5gen_prelude Dec 04, 2000 (3:40 am)
There are some slight differences in the two, however the differences are slight - I think the sway bar is slightly bigger in the SH, have to look it up though.

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