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NA6 Engine Replacement
Posted: Thu Jan 20, 2011 9:41 pm
by Stag76
I'm replacing the short-nose crank engine in my NA Eunos Roadster (1989) with a Long-Nose 1.6 engine from an Automatic Transmission car (1992). I'll be using the existing alternator, PAS pump and air-con compressor. Apart from the flywheel, are there any other differences in these engines (eg TPS).
Re: NA6 Engine Replacement
Posted: Fri Jan 21, 2011 12:20 pm
by 93_Clubman
Stag76 wrote:Apart from the flywheel, are there any other differences in these engines (eg TPS).
Indeed, understand the auto NA6 B6 motor had a different TPS, but perhaps more importantly it had lower compression pistons, different cams, less peak HP, & torque at lower RPM:
http://www.solomiata.com/Mx5Engine.html
Re: NA6 Engine Replacement
Posted: Tue Jan 25, 2011 1:15 pm
by Dorimx5
if the tps is different you should still be able to convert the current loom to suit the new tps
Re: NA6 Engine Replacement
Posted: Thu Jan 27, 2011 9:07 pm
by project.r.racing
or just replace the engine only. ie, cam cover, head, block, sump. everything else you keep from the original car.
don't go chopping stuff and swapping stuff you don't need to.
Re: NA6 Engine Replacement
Posted: Fri Feb 25, 2011 10:13 am
by corners
project.r.racing wrote:or just replace the engine only. ie, cam cover, head, block, sump. everything else you keep from the original car.
don't go chopping stuff and swapping stuff you don't need to.
I agree with this.
Swap bare motor for bare motor