Small Block Chevy or 280ZX Turbo Engine Swap
Posted 18 April 2003 - 02:01 PM
The Chevy is definately more expensive and probably a bit more difficult but allows for much more horsepower and betters mods for later increased power. The added weight is another issue though...
How much horsepower can the Turbo 280ZX engine put out without any hugely expensive or difficult mods?
Any help is greatly appreciated.
Posted 19 April 2003 - 01:36 PM
Posted 19 April 2003 - 01:39 PM
Posted 09 May 2007 - 06:11 PM
can any one help?
Posted 09 May 2007 - 07:21 PM
i see all these v8 coversions out there for a 280 zx but dont want to go that far doese any one know how hard it would be to put a 4.3 in my 81? i think it would be enough of power but dont want to spent thousands
can any one help?
Your post is so general and is also gonna bring a lot of negative replies. The 4.3 is as easy as the V8, its just 2 cylinders shorter. IMO a 4.3 build isnt going to cost anymore than a V8 build. V8's are easier to find as well. Trust me on this, I have a 90 Pathfinder about to get the drivetrain out of a Blazer/Jimmy 4x4. It took me months to find a 4.3, i found tons of V8 stuff.
Posted 10 May 2007 - 05:09 PM
Posted 10 May 2007 - 06:32 PM
1983 280zxt 2+2 t-tops 248TQ 244HP at the wheels w/tranny slipping... new 700r4 w/3k stall sitting... waiting|94 LT1 4L60E|LT4 "Hot cam"|Roller rockers|MSA Mounts|JTR zx aluminum radiator|JTR Ceramic Coated zx headers|DynoMax 3" side pipes|B&M Pro Ratchet Shifter|Nissan K-11 Paint|MSA Airdam|2 functional hood vents|
Posted 10 May 2007 - 08:32 PM
Posted 11 May 2007 - 05:43 AM
A bone stock 350 will be slow. A 350 conversion is a lot of work. You need a lot of space, a lot of down time for the car, good fabrication skills, a lot of tools, and a fat wallet. Add up the cost and time estimates and double both.
I did a little junk yard bolt on turbo on a 78 and spent around 300.00 and it ran a mid 14 second in the 1/4 mile at 96mph on stock boost, no ic, and just a fmu to increase fuel pressure during boost. Boost and torque is instant with the stock turbo. I didn't tune it very well and the engine was in poor shape before the swap. This was my turbo experimental car. This is as fast as most bone stock 350 would be.
I also built a 76 with a bigger turbo, IC, turbo long block, and fmu for fuel enrichment. It runs mid 13's at 108 mph (bad traction) with 12 to 14 psi of boost. It is a quiet daily driver and didn't cost much to build. Has ac, stereo, sound proofing, skinny tires, ect. And still gets about 20 mpg.
I also built a 71 with a 350. It went through a bunch of upgrades over the years, but my first trip down the 1/4 mile was a 12.9 at 110 mph. But the cam was very lopey and not a very good daily driver. Then I started increasing the power with better heads, better exhaust, and some n20. Then added some slicks and ran 10.7 at 134mph. But the car would break axles and not a good daily driver at all. I wish that I would had left it a 12.9 car.
If you are looking for some decent power for cheap and not much work, then go turbo. The power differece with a turbo is a major difference over a stock engine. The stock turbo makes a nice street performer with hardly no turbo lag. Stock turbos go for 40.00 at my local pick-n-pull and exhaust manifolds go for 20.00. A 280Z engine already has low enough compression to run stock boost (7 to 8 psi). So, you could just bolt a turbo into your current engine.
V8's are nice but take a bunch of time and money to do it right. If you are looking to run about a mid 13's at 105mph then a turbo is what you need. If you want to go faster and still retain some low rpm torque then go V8.
I would also recommend to upgrade the stock efi to megasquirt before going turbo, if you decide to do a turbo.
Posted 11 May 2007 - 06:36 AM
Posted 12 May 2007 - 12:10 AM
Posted 14 May 2007 - 07:06 AM
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