89 911 LS1 Conversion - Page 10

drmatera · 10-19-2011, 08:27 AM

It's is funny how people would rather the car sit and rot in the junkyard because of a blown motor before getting an engine transplant... Not to mention a late model LS-x series engine has more technology, better power to CID ratio, better fuel economy, cleaner burning, cheaper to repair, cheaper to modify and a hell of a lot faster per dollar.. Seems to me putting an aluminum LS1 into these cars just improves it..

But i'm not purist

911JeffS · 911JeffS's Garage

Yan-
Lookin good, keep it up, I think your teaching us the course.
Jeff

not_hans_stuck · 10-21-2011, 05:17 PM

Quote:

Originally Posted by cole930

Don't mean to be negative but, I love these cars too much. To me it's like cutting the center out of a Picasso to insert an Al Capp cartoon.

I certainly respect your right to do what you want with your car but your either a Porsche guy or your not. Your not. I would respectfully encourage you to go buy a Corvette.

Cole

So if I understand your analogy, replacing a 911 engine with an LS1 is like cutting the center out of a weird european thing that nobody understands and putting in a simple American classic.

I'd say I have to agree.

H

stlrj · 10-22-2011, 12:06 PM

Quote:

Originally Posted by not_hans_stuck

So if I understand your analogy, replacing a 911 engine with an LS1 is like cutting the center out of a weird european thing that nobody understands and putting in a simple American classic.

I'd say I have to agree.

H

In all honesty, an LS1 really does belong in a 996, considering the nightmare issues some have had.

pcar9119 · 10-23-2011, 03:13 PM

I talked to Clemon at Toyjet thursday. He had alot of enlightening things to say about his system and all his adaptation pieces. I will be definitley buying his stuff. His mounting system is so clean and leaves lots of room for headers. I want to build some 180 headers for my car and now will have room to do this with his mounting kit.

Yan2947 · Yan2947's Garage

Pcar9119,

glad you found a way of solving your 180 headers. Can't wait till he finishes his heating system for my car! Its getting cold here in NY!

Just put in some rear speakers - Kenwood KFC-X463C. They were 4 by 6 rear deck speakers and fit nicely. I had to remove the Porsche speakers in the rear and re-use the metal bracket. I had to take out my dremmel tool and cut away part of the bracket. After that was done and the bracket fit nicely to the Kenwoods, I cut out, using the dremmel, the area that the grill attached to my old speaker. I cut that area out and then put it on top of my kenwoods. The original screws went right to the metal bracket and then the grill popped on perfectly! Took about 2 hours total. Even though the rear speakers are not the greatest for sound in a little porsche, it helps to cut out some of that rear 350 hp sound coming through. I also used the dremmel round file to smooth out the edges on the metal and the plastic!

Sounded perfect with my Alpine amp, Sony Head and JL Audio front speakers!

carsonmx114 · 10-25-2011, 04:25 AM

I read through quickly (have to get to work), what's everyone doing for heat? I'm thinking that I'll build a heater box under the left rear seat and put an inline thermostat on the hot side of the system just after the input for the heater core. My car has a duct running down each side of the car. I assumed that one was fresh air into the stock heater manifolds and the other was hot air back into the car. Am I right?
Thanks.

hcoles · 10-25-2011, 06:40 AM

Quote:

Originally Posted by drmatera

It's is funny how people would rather the car sit and rot in the junkyard because of a blown motor before getting an engine transplant... Not to mention a late model LS-x series engine has more technology, better power to CID ratio, better fuel economy, cleaner burning, cheaper to repair, cheaper to modify and a hell of a lot faster per dollar.. Seems to me putting an aluminum LS1 into these cars just improves it..

But i'm not purist

+1 - I see a quote around here something like "didn't see a sports car I liked so I built my own" putting a different engine in seems compatible with that statement, not sure of quote origin

Yan2947 · Yan2947's Garage

I am waiting for Clemon's heater box around a muffler. His system connects to the stock 911 air ducts with a small fan on each. Hopefully he is working on it right now. There would be no need for anything else. Simple and follows the design of the 911 utilizing what the car already has.

masraum · 10-25-2011, 11:31 AM

Quote:

Originally Posted by lindy 911

Your 3.2 with some tweaking far less than that required for a V8 install will kick the ***** out of an LS-1 in a 911 chassis. Do what you want, but taking a perfectly good car with a rebuild-able motor and stuffing a V8 in it, will produce a TURD.

Just my .02

Lindy

?? Really? I'd love to know how "some tweaking" to a US spec '89 3.2L will kick the poo out of an LS1?

I LOVE Porsches. Love them, seriously, just think they are awesome cars. I miss my '88 targa every day.

But unless you're talking about adding a turbo or supercharger (which would probably require more than tweaking) or you're talking about a 911 race motor or unless you're talking about one of the late model GT3 engines, I'm not sure how you can honestly compare power output per cost or power output per weight of an LSx engine and a 911 engine.

carsonmx114 · 10-25-2011, 11:31 AM

I see. I was hoping that my car had provisions to circulate the air through my heater box. I wonder what I'm missing as far as fans or control valves...I haven't seen any other plugs or wiring that I haven't accounted for unless it was in the engine wiring harness. I was under the illusion that when I set the dial to heat the air would circulate down one duct and back up the other.

lin7310948 · 01:24 PM

i have a front mounted radiator suitably enclosed. my plan is to duct air directly off the radiator enclosure to the cab. i will take hot air via two 2.5 inch flexible tubing hoses directly to the cab. and if necessary will provide air to the defroster vents from those two sources. i might even get fancy and put a shutter in the duct tubing to control the amount of heated air coming into the cab. simple and no weight!

masraum · 10-25-2011, 03:10 PM

Quote:

Originally Posted by cole930

you're either a Porsche guy or your not. Your not. I would respectfully encourage you to go buy a Corvette.

Cole

What a crock. That's just silly. Porsches and 911s are great. I love them. I can't wait to have another but I also think that there's nothing done with one of these conversions assuming it's done well. If the engineering is there so that the thing runs well and doesn't have reliability or driveability issues, then I think it's completely fitting.

I like blonds, brunetttes and redheads. You know what, I'd also be happy with a blond that died her hair red or a brunette that bleached her hair blond, or hell, a girl that dyed her hair blue, green or purple as long as it's well done.

Don Nguyen · 10-30-2011, 08:36 PM

Do you have any pictures of the exhaust system? I have an Ls1 in my M3, and I may consider putting one in my 911 as well

-Don

pcar9119 · 10-30-2011, 09:03 PM

Quote:

Originally Posted by hcoles

+1 - I see a quote around here something like "didn't see a sports car I liked so I built my own" putting a different engine in seems compatible with that statement, not sure of quote origin

That quote cam from old man Porsche himself!

lin7310948 · 10-31-2011, 04:22 AM

not directed to me, but these are the headers that i put on my LS7 conversion. fabricated by Stainless Headers.

Don Nguyen · 10-31-2011, 08:30 AM

I was just actually looking at your thread, lin. I was trying to see if there would be any already built headers out there that can be used in the LS swap versus having to have custom ones made. I've seen guys use the factory cast iron ones, but I wanted something more free flowing, like yours.

wjfk32 · 10-31-2011, 09:11 AM

I met a guy who put a Banks twin turbo V8 in a converted wide body 911.
The body was fiberglass/flmsy..The engine was a super tight fit and heavy..
The more questions I asked about the car, the more of a butcher operation he explained...
He did the work and saved alot of money....but it just looked all wrong..

Walt

mkingham · 11-01-2011, 04:47 PM

Quote:

Originally Posted by Don Nguyen

I was just actually looking at your thread, lin. I was trying to see if there would be any already built headers out there that can be used in the LS swap versus having to have custom ones made. I've seen guys use the factory cast iron ones, but I wanted something more free flowing, like yours.

Hi Don,

I bought a set of headers that fit around the RH brackets. They were made by JBA Performance Exhaust, part # 1850S-3

Here are two pics

woywitka · woywitka's Garage

Quite a project. Congrats to you for taking it on.

I think to each thier own. We have a 66' 440 Charger and I just love the sound and the way that car makes power. That feeling of American muscle is something to be so desired.

I also love the Porsche flat 6, that sound, the way it builds power, how it makes torque, the smoothness at 7K RPMS. Flat 6 engines just feel different.

To some a Porsche is the whole package, to others it is just the look. Everyone has different tastes.