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  What are some ways to get a little more power out of these 2.8 stock?

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What are some ways to get a little more power out of these 2.8 stock? by FieroGT-987
Started on: 09-07-2013 11:03 AM
Replies: 9 (284 views)
Last post by: racingfortheson on 09-07-2013 07:06 PM
FieroGT-987
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Report this Post09-07-2013 11:03 AM Click Here to See the Profile for FieroGT-987Click Here to Email FieroGT-987Send a Private Message to FieroGT-987Edit/Delete MessageReply w/QuoteDirect Link to This Post
I have an 87 gt 2.8 stock. I was thinking lf porting the throttle body maybe. What are some diy things or addons i could try. Thanks
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NetCam
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Report this Post09-07-2013 11:15 AM Click Here to See the Profile for NetCamClick Here to visit NetCam's HomePageSend a Private Message to NetCamEdit/Delete MessageReply w/QuoteDirect Link to This Post
Porting the intake will give you some decent gains.
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FieroGT-987
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Report this Post09-07-2013 11:17 AM Click Here to See the Profile for FieroGT-987Click Here to Email FieroGT-987Send a Private Message to FieroGT-987Edit/Delete MessageReply w/QuoteDirect Link to This Post
Would you or someone please guide me on how to do this and what will i need? Thanks. I cant find it anywhere
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olejoedad
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Report this Post09-07-2013 11:52 AM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
Porting the exhaust manifolds will do more.
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NetCam
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Report this Post09-07-2013 11:59 AM Click Here to See the Profile for NetCamClick Here to visit NetCam's HomePageSend a Private Message to NetCamEdit/Delete MessageReply w/QuoteDirect Link to This Post
Here's one for the lower intake/heads:

http://www.fiero.nl/forum/A...040223-2-039423.html

There are lots out there on porting the exhaust as well. Do a search under 'port exhaust' and make sure to chose 'entire forum plus archives'. Lots of good info out there. If you have the time, I would recommend you do both. I've read that most that have done it have been pleased with the results.
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Fiero_Fastback_Freak
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Report this Post09-07-2013 12:46 PM Click Here to See the Profile for Fiero_Fastback_FreakClick Here to visit Fiero_Fastback_Freak's HomePageSend a Private Message to Fiero_Fastback_FreakEdit/Delete MessageReply w/QuoteDirect Link to This Post
You could buy a performance chip, it will give you some more power

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Any man can drive a car, but it takes a real man to drive a Fiero.

[This message has been edited by Fiero_Fastback_Freak (edited 09-07-2013).]

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lou_dias
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Report this Post09-07-2013 12:54 PM Click Here to See the Profile for lou_diasClick Here to Email lou_diasSend a Private Message to lou_diasEdit/Delete MessageReply w/QuoteDirect Link to This Post
Get a dyno and see how much power you're making and what your a/f ratio is across the rpm range. If it's below or above 13:1 the a chip could help if tuned to your specific needs. Don't buy a chip off the shelf.
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Shonyman32
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Report this Post09-07-2013 12:58 PM Click Here to See the Profile for Shonyman32Send a Private Message to Shonyman32Edit/Delete MessageReply w/QuoteDirect Link to This Post
Don't buy the performance chip. Its a waste.
port the exhaust manifolds, y-pipe, and buy a new muffler. 14 horse dyno proven.
I cant look up the threads right now though.
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Arns85GT
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Report this Post09-07-2013 01:16 PM Click Here to See the Profile for Arns85GTClick Here to Email Arns85GTSend a Private Message to Arns85GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
Like he said, ported exhaust manifold, ported Y and if you don't need it, get rid of the CAT. It is likely clogged.

You may need a muffler, but you may not.

The real issue after that is done, is the intake and flow.

I built a 2.8 to 132 hp at the wheels. It took porting the heads and all of the above. I also carb'd it to get more fuel mixture into it.

In short, though, the ported exhaust is the quickest and most efficient improvement.

Arn

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racingfortheson
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Report this Post09-07-2013 07:06 PM Click Here to See the Profile for racingforthesonSend a Private Message to racingforthesonEdit/Delete MessageReply w/QuoteDirect Link to This Post
I just did the manifolds, port matched the intake to the gaskets and the 1.6 roller rockers and it runs so great. It is like a new car for real. I didn't get to do the pipe or y pipe and still had awesome gains.
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