Author Topic: Engine power mod's  (Read 761 times)

Offline MrCoffee

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Engine power mod's
« Reply #15 on: July 13, 2003, 07:54:30 PM »
That gear ratio is not a bad idea if you want better accel without HP worries. Well I guess you may have two options here. One, swap in a turbo kit or OEM turbo engine. You can leave the compression ratio as is then because turbos and superchargers like lower compression engines. Or increase N/A compression ratio and modify your intake system. The stock Fi doesnt breath very well because you have one air mass box (eletronicly linked to Fi) at the front, one throttle body, then a cast intake manifold that splits all that up into the six intake ports. You can get rid of that and install some dual sidedraft carbs for much better performance.

http://www.racetep.com/ztripdcoe.html

http://www.racetep.com/xmasspecials.html

http://home.att.net/~jason510/weber.htm

Can also have the mechanic jet it to your driving/performance needs.
« Last Edit: July 14, 2003, 12:55:51 AM by MrCoffee »

Offline Puke

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Engine power mod's
« Reply #16 on: July 13, 2003, 10:04:47 PM »
Saur, very good question...why wouldn't I just buy a complete 280ZX Turbo automobile?  A biggie is because these things are know as "rust buckets."  My car is a "California car" and I've owned it since I was 21...lessee, that makes it 15-years now.  My car is in very good shape and I may have jumped the gun anyway because my car is due to be out of a body shop any day.  I'm having a rusted panel replaced under the gas intake and the front hood is being replaced due to a few bubbles appearing at the leading edge.  The guy pulled all the trim off and is supposed to be doing a pretty good paint job with "extra" prep and a two-stage paint job to match the original color (the silver you see in the pic...which is about a 5-yr old pic.)  At first I was thinking new paint and then modified exhaust back of the cat with 2.5" pipe.  Then of course I get all embroiled in this thing and I started getting interested in engine mod's.  Now I've decided I want to dump a 280ZX Turbo with a few extra bells and whistles into my car (I guess you can easily achieve 250Hp from the stock 180HP turbo engine.)  10-15-years ago I looked into this mod and no one was really doing it but it sounds very common and the engine just fits right in except for a few differences in the wiring and some fuel pumps and some other small things.  Once I have the engine in, I think then I'll match the differential/gears to the HP.  A lot of people are saying the non-turbo 5-speed tranny is good and can handle this HP and is actually preferred to the turbo tranny (not sure why.)  The turbo L28s were only made 1981-1983 and so there weren't a lot made.  The first 240Z was built 1969 (1970 model year) which people are putting L28 Turbos into and so you have basically 13-years of Z's trying to claim 3-years worth of turbo engines and it sounds a little like they are getting hard to find.  So basically, my next step is to find someone who has done this type of swap and talk with him about working on mine.  Then I have to find an engine and then the games begin.  I know I probably should have dropped an engine before body work, but at that point, I wasn't planning on this.  Surprise!
(When I was 21-years old, I totalled my first 280ZX [it actually caught air in a spin out] and a few months later wiped out on a motorcycle and both those incidents really calmed me down regarding vehicles.  I think I'm older and wiser now [and have more money] and I think I can handle some extra power again.)  

Basically, my car is in good shape and all I need now is a good shape L28T engine to drop into it.  I doubt I'll do anything before Sept, I really want to research this well.  I've also heard a few problems with CA emissions going with an older engine into a newer car, so I need a 82 or 83 turbo engine.
« Last Edit: July 13, 2003, 10:16:19 PM by Puke »

Offline Mark Luper

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Engine power mod's
« Reply #17 on: July 13, 2003, 10:11:16 PM »
Puke,
The all around cheapest good horsepower increase will come from some form of super charging or turbo charging. My reccomendation is to contact the folks at http://www.procharger.com. I have been impressed with what I have read over there and plan to use one of their superchargers on my pickup in the not too distant future.
MarkAT

Keep the shiny side up!

Offline Cougar68

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Engine power mod's
« Reply #18 on: July 14, 2003, 12:16:14 AM »
WARNING!!!!WARNING!!!!WARNING!!!!WARNING!!!!

Many a hot rodder's career has started with the phrase "i just want a little more power, nothing too radical."   My '68 Cougar started out as a nice cruising car then I decided it needed just a  little more pep.  A little bit of pep turned out to not be enough so now she's getting about 475 hp, new front suspension, tubbed rear end and a 4.11 posi-trac.  Be prepared for a second mortgage as you look at new K&N filters.  :D

Cougar

Offline Raubvogel

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Engine power mod's
« Reply #19 on: July 14, 2003, 05:24:24 AM »
Supercharger. Probably a kit out there custom made for 280s. Unlike a turbo, you'll get instant boost and instant power. Turbo will lack in low-end torque and power until you get to 3k RPM or so.