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99 civic d16y8 (automatic)

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Old 06-09-2010, 03:13 AM
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Default 99 civic d16y8 (automatic)

Was wondering how I could give this car some horse power? Would prefer to do it all motor but wouldn't mind a turbo either. Car only has 76k. So I want do wantever is going to be the easiest on the tranny. Any suggestions and ideas will be greatly appreciated!
Old 06-09-2010, 04:05 AM
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Default Re: 99 civic d16y8 (automatic)

This Link to another HT post sums up some of the best results I've seen without major work or a turbo install.

If you don't want to read it, it says Edelbrock Performer X Intake Manifold, AEM V2 Cold Air intake, DC 4-2-1 Exhaust Manifold, and 2.5" Cat-back Exhaust. (in general).

Unfortunately the AEM V2 CAI doesn't fit the Automatic as far as I am aware so a custom CAI or just a Short Ram Intake would be best (plus the AEM V2 is very expensive)

I'm not sure how much power the automatic transmission can handle either so a turbo with too much output probably wouldn't be a good idea... Plus it is a lot of money.

The Edelbrock IM is about $300 as is the DC header (new prices)
The 2.5" Exhaust is probably best for power and high rpm applications but since you are driving an automatic I guess it isn't as easy to control your rpm... I also believe the 2.5" exhaust would work best with this guys setup and not necessarily one with lower flow capabilities.. In which case nothing larger than 2.25" (~60mm) should be exceeded (in general).

Good luck!
Old 06-09-2010, 12:02 PM
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Default Re: 99 civic d16y8 (automatic)

well I've read just different pistons(pm7) and a cam(crower stage3) can get me up to 170 horse I've had a 2.25 cat back exhaust for quite a long time now and i did notice a difference when i put that on. I still need to buy headers for it but thats all little stuff. i have a short ram as well. but in order to create real horesepower its gonna take a little work. im just wondering the best and safest route for my car since it has the automatic tranny.
Old 06-09-2010, 01:21 PM
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Default Re: 99 civic d16y8 (automatic)

Theres not really anything you can do, if you do a high compression N/A build or boost it, it should be tuned, and you can't with that automatic transmission. Your best bet is to swap in a manual and go from there.
Old 06-09-2010, 01:23 PM
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Default Re: 99 civic d16y8 (automatic)

Originally Posted by 94EG8
Your best bet is to swap in a manual and go from there.
Yes, or you can just leave it alone... I would rather spend my money on a full tune up then buy aftermarket parts for it..
Old 06-09-2010, 01:30 PM
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Default Re: 99 civic d16y8 (automatic)

if you want real horsepower with the d series, swap the tranny for manual and then turbo.
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