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Type SH tuning?

 
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Old 07-27-2011, 07:41 PM
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Type SH tuning?

Alright so I have a 99 SH right now, and to be honest I'm a bit of a noob for tuning and such so I've read that OBD2 restricts tuning/doesn't allow you to. So converting to OBD1 is basically the way to go, right?

but I've read that converting to OBD1 would make ATTS useless.. and I'm not sure I want to lose my ATTS.
So what can I do to tune?

I searched and didn't find any thread on this
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Old 07-27-2011, 07:55 PM
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Re: Type SH tuning?

Greddy E-manage Ultimate.


There is a recent thread about this over on HT, But it's still an iffy situation because supposedly you lose atts once you reach a certain WHP. As far as I know the E-manage wont even help with that part.

You can also use a VAFC - but it wont get you far.


You should focus on bolt-ons and decide where you want to go with the car - forced induction/ NA build. what kind of emissions you have and if you want to lose atts or not.

all things to consider before even thinking about tuning
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Old 07-27-2011, 08:10 PM
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Re: Type SH tuning?

Well I would like to keep ATTS for the track, but I rarely go, mostly I've stuck to drag cause there's only one track around where I live and its pretty far.
I've wanted to boost my prelude.
Right now it's my daily driver but I'm planning on getting a new one and having that as my DD

What would I have to do to remove ATTS?
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Old 07-27-2011, 09:03 PM
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Re: Type SH tuning?

I've definitely heard that(and seen videos) the ATTS actually makes it a little slower. So that might be some motivation to remove it.
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Old 07-27-2011, 09:23 PM
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Re: Type SH tuning?

I've heard that ATTS makes it heavier so that's why it's slower from what they say. But I doubt it's that significant of a difference. but still if I end up rendering it useless I might as well just remove it lol
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Old 07-27-2011, 11:04 PM
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Re: Type SH tuning?

you cant just remove it. to remove atts you would have to remove/replace the motor and transmission with a non-atts motor and trans swap. would be easier to just get a new car. the atts would probly also slow down the car in a drag because of all the extra rotational mass. not by much but maybe a tenth or two
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Old 07-28-2011, 12:22 AM
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Re: Type SH tuning?

The atts limitations are around 250whp (it actually has more to do with torque but at a certain point it doesnt function properly) I also believe some engine managent system eliminate delete the atts.)

I would talk to whoever is gonna tune your car and see what they think about Greddy E-manage..
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Old 07-28-2011, 01:08 AM
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Re: Type SH tuning?

Quote:
Originally Posted by natt2000 View Post
you cant just remove it. to remove atts you would have to remove/replace the motor and transmission with a non-atts motor and trans swap. would be easier to just get a new car. the atts would probly also slow down the car in a drag because of all the extra rotational mass. not by much but maybe a tenth or two


Why the hell would you need to swap a motor to remove ATTS? You CAN just remove it

Yeah - the transmission, axle's, and suspension components differ from a base but this is all that would be needed to remove it....

WRITE UP: 5th gen SH ATTS to Base Conversion. - Honda Prelude Forum : Honda Prelude Forums
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Old 07-28-2011, 01:28 AM
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Re: Type SH tuning?

Have you considered leaving your prelude sh alone and tuning a simpler car? Base 5th gens seem the way to go, but there are other hondas that have turbo kits readily available or swap the h22 in and zoom zoom zoom zoom! Go with that. 5th gens are crazy comfy Dd's.
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Old 07-28-2011, 03:30 AM
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Re: Type SH tuning?

just buy good coilover set and some nice cat-back, they make your car fun to drive. its your best option
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Old 07-28-2011, 09:28 AM
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Re: Type SH tuning?

first you have to determine power goals. if you plan to exceed the 250whp mark as previously stated, atts won't work. the atts unit itself is not that heavy and just connects to the tranny, but you need it there to keep the wheels turning unless of course you swap motors and go with a base tranny. now if you want to boost, you're going to have to disable it because you'll possibly exceed the atts torque limitations and it would be recommended to go to an obd1 ecu. you could do a mild N/A build with stage 2 cams but as someone said up top, you'll need greddy emanage ultimate.
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Old 07-28-2011, 06:26 PM
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Re: Type SH tuning?

Well I'm gonna keep ATTS.

everyone around here has power builds and having something different would be fun. I'm gonna keep it to the track build
It should be more fun to drive with that build imo anyways lol

And I've been looking for a clean DC2 Integra so if I get one, I'll boost that one
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Old 10-09-2014, 07:19 AM
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Re: Type SH tuning?

Sorry for the long thread revival..

ATTS on a track works brilliantly. I don't know why people are telling you to remove it. :(

This was on track/autocross in my JDM Type-S (with ATTS) ;)



Also, no one really knows the limitation of the power that ATTS can't handle. Some people are running more then 300bhp and still have their ATTS.

I would only remove the ATTS if it was broken or it would cost too much to repair.. Otherwise I would keep it and go around corners really fast :D :D :D
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Old 10-09-2014, 08:32 PM
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Re: Type SH tuning?

You can do an SH to base conversion keeping the SH block and trans

here is a link to the DIY on p r e l u d e p o w e r . c o m

WRITE UP: 5th gen SH ATTS to Base Conversion. - Honda Prelude Forum : Honda Prelude Forums
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