Engine Rebuild Question
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Racer
Joined: Nov 2001
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From: Denver, Colorado
Engine Rebuild Question
I am giving serious thought to completely stripping my 86 to the ground and rebuilding, due to some laziness on the part of the PO. In that process, I was starting to think about some engine mods. I would prefer not to turbocharge or supercharge, but I would like a bit more power and/or displacement. Are there some routes that people have taken and would be willing to share?
At this time it is just a dream, but next spring is when I may get started. Just trolling for ideas!
Thanks,
Shawn
*Mine is an 86 A/T
At this time it is just a dream, but next spring is when I may get started. Just trolling for ideas!
Thanks,
Shawn
*Mine is an 86 A/T
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From: Land of many Potholes, Michigan
Would like some advice on the Same as Berg. I will be coughing up the money to do the engine work THIS winter. My question is, what are my options, and cost of thoose options. I would like to get enough horsepower to get my Shark ahead of a the camaro's, a few vettes, and more than a fair share of foriegn cars (I won't go there. Rice Burners 
).
Now if this means stroking the engine, super charging, turbo's, new heads, head work Fine. I am looking for serious on the spot guidance. Just need some of the gurus to help with the knowledge. I know budget budget budget. I am looking at dropping maybe $4-6,000 in the engine during the winter. Maybe more during the spring, if needed. Not looking to make the fastest thing in the world. But quick enough to smile.
I have a spare '85 engine to work with from the donor shark I have. I think this will make it easier to work with. So, I can work on the engine and not worry about pulling mine till the new power is ready to be installed.
Secondly, Since I am not looking to go 160 MPH, is it s good idea to start thinking about different gears for the rear end? Not sure to look at the engine build, then the rear or reverse. I will be driving on the streets and highways.
John D.
'85 928 Auto, Black
).Now if this means stroking the engine, super charging, turbo's, new heads, head work Fine. I am looking for serious on the spot guidance. Just need some of the gurus to help with the knowledge. I know budget budget budget. I am looking at dropping maybe $4-6,000 in the engine during the winter. Maybe more during the spring, if needed. Not looking to make the fastest thing in the world. But quick enough to smile.
I have a spare '85 engine to work with from the donor shark I have. I think this will make it easier to work with. So, I can work on the engine and not worry about pulling mine till the new power is ready to be installed.
Secondly, Since I am not looking to go 160 MPH, is it s good idea to start thinking about different gears for the rear end? Not sure to look at the engine build, then the rear or reverse. I will be driving on the streets and highways.
John D.
'85 928 Auto, Black
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Joined: May 2002
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From: Dearborn Heights, MI
Last year I had the same thoughts about my 80. More power, etc. I checked out the cost of rebuilding with some modifications to add some horses. I found it to be somewhat expensive, so I opted for converting to a SBC 5.7 LT1.
The conversion job itself was a lot of fun and very rewarding.
Just something else to consider.
Bob
[quote]Originally posted by bergstsm:
<strong>I am giving serious thought to completely stripping my 86 to the ground and rebuilding, due to some laziness on the part of the PO. In that process, I was starting to think about some engine mods. I would prefer not to turbocharge or supercharge, but I would like a bit more power and/or displacement. Are there some routes that people have taken and would be willing to share?
At this time it is just a dream, but next spring is when I may get started. Just trolling for ideas!
Thanks,
Shawn
*Mine is an 86 A/T</strong><hr></blockquote>
The conversion job itself was a lot of fun and very rewarding.
Just something else to consider.
Bob
[quote]Originally posted by bergstsm:
<strong>I am giving serious thought to completely stripping my 86 to the ground and rebuilding, due to some laziness on the part of the PO. In that process, I was starting to think about some engine mods. I would prefer not to turbocharge or supercharge, but I would like a bit more power and/or displacement. Are there some routes that people have taken and would be willing to share?
At this time it is just a dream, but next spring is when I may get started. Just trolling for ideas!
Thanks,
Shawn
*Mine is an 86 A/T</strong><hr></blockquote>
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Joined: Apr 2002
Posts: 81
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From: Hobbs, NM (or lovington)
There is a place near where I live that will put two turbos and an intercooler on my car for about 5k. They do lots of turbo mustangs, and camaros. Also they know how to install and tune TECIII engine managment systems. I am going to do that and 944heads, and euro throttle body and intake. I am looking to spend around 10k with everything i want to this fall. 84 928.
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Racer
Joined: Jul 2001
Posts: 395
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From: Chicago
Depending on what your goal is, and how much you want to spend, that it's really hard to give specific advice. Here's a link to some information on a guy with an '85 automatic.
<a href="http://www.marcus3.com/porsche_page/porsche_page.html" target="_blank">http://www.marcus3.com/porsche_page/porsche_page.html</a>
The last that I heard, it was making 480 hp and 520 ft/lbs of torque at the rear wheels, with a totally stock exhaust system. I guess it's getting headers and a free flowing dual 3" exhaust on it soon.
One piece of advice I can give is to do the gear change last, if at all. Depending on what you end up doing with the engine, even the gearing that you have now may give you much more wheelspin than you'd want.
<a href="http://www.marcus3.com/porsche_page/porsche_page.html" target="_blank">http://www.marcus3.com/porsche_page/porsche_page.html</a>
The last that I heard, it was making 480 hp and 520 ft/lbs of torque at the rear wheels, with a totally stock exhaust system. I guess it's getting headers and a free flowing dual 3" exhaust on it soon.
One piece of advice I can give is to do the gear change last, if at all. Depending on what you end up doing with the engine, even the gearing that you have now may give you much more wheelspin than you'd want.
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From: Dearborn Heights, MI
Yes. I used a conversion kit from Renegade Hybrids in Las Vegas. They've been extremely helpful too.
Their torque tube converter bolts right up to the SBC flywheel.
Its a 94 LT1 which is Fuel Injected and has a flashable chip. The Porsche system comes out intact and the GM system goes right in its place.
Bob
[quote]Originally posted by Donald:
<strong>robm-
Did you purchase a converter kit for the sbc? Which bits went away & how do the flywheel/FI connect (or is that a carb engine)?
TIA,
Donald</strong><hr></blockquote>
Their torque tube converter bolts right up to the SBC flywheel.
Its a 94 LT1 which is Fuel Injected and has a flashable chip. The Porsche system comes out intact and the GM system goes right in its place.
Bob
[quote]Originally posted by Donald:
<strong>robm-
Did you purchase a converter kit for the sbc? Which bits went away & how do the flywheel/FI connect (or is that a carb engine)?
TIA,
Donald</strong><hr></blockquote>
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Joined: May 2002
Posts: 1,928
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From: Dearborn Heights, MI
Heres a link to some pictures. One day I hope to get around to adding some captions & explanations.
<a href="http://mywebpages.comcast.net/robmb/index.html" target="_blank">Porsche 928 LT1</a>
[quote]Originally posted by Donald:
<strong>robm-
Did you purchase a converter kit for the sbc? Which bits went away & how do the flywheel/FI connect (or is that a carb engine)?
TIA,
Donald</strong><hr></blockquote>
<a href="http://mywebpages.comcast.net/robmb/index.html" target="_blank">Porsche 928 LT1</a>
[quote]Originally posted by Donald:
<strong>robm-
Did you purchase a converter kit for the sbc? Which bits went away & how do the flywheel/FI connect (or is that a carb engine)?
TIA,
Donald</strong><hr></blockquote>
Thread Starter
Racer
Joined: Nov 2001
Posts: 263
Likes: 0
From: Denver, Colorado
I apologize. I should have given a bit more to go on. Essentially, I want to retain a stock look. I have heard a few things regarding an upgrade to the 968 pistons, and some block work, without supercharging or turbocharging.
Has anybody gone this route with any results that I could look at, i.e dyno numbers? How about the DEVEK stroker kit, any testimonials? When I do this, I plan on replacing the lower block, as the PO's mechanic dropped it off the hoist and cracked one of the alternator mounts on the block, forcing me to JB weld the mess. Yes, my PPI mechanic missed that one, too! <img src="graemlins/cussing.gif" border="0" alt="[grrrrrrr]" />
Thanks,
Shawn
Has anybody gone this route with any results that I could look at, i.e dyno numbers? How about the DEVEK stroker kit, any testimonials? When I do this, I plan on replacing the lower block, as the PO's mechanic dropped it off the hoist and cracked one of the alternator mounts on the block, forcing me to JB weld the mess. Yes, my PPI mechanic missed that one, too! <img src="graemlins/cussing.gif" border="0" alt="[grrrrrrr]" />
Thanks,
Shawn