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-   -   EFI converts: speak up! (http://forums.pelicanparts.com/porsche-911-technical-forum/191998-efi-converts-speak-up.html)

jpnovak 11-12-2004 09:19 AM

EFI converts: speak up!
 
I am in the process of converting my car to EFI. Its a slow process that is dependent on completion of the ITBs (see other post). I am trying to compile all the information into one thread. No I am not going for any Ultimate threads but that's the idea.

Who is using EFI?
What system - electronics, throttle bodies, etc (please be specific)?
Shop or self install/tuning?
Did you dyno before/after?
Were internal changes made? If so, what changes? (cams/pistons, etc)
What are the driveablility changes?
Throttle response?
gas mileage?

Thanks

Kemo 11-12-2004 01:27 PM

i would like to hear a few things about converting to EFI also. My CIS is in <i>decent</i> shape, but after seeing the threads about megasquirt and other low cost EFI solutions, I'm wondering why there isnt a reasonable package out there.

jpnovak 11-12-2004 01:52 PM

Hey Kemo, WE got to see your car at Ron's a few weeks ago. Can't wait for the new bumpers to be put on. Love that Triad sound.

Kemo 11-12-2004 02:38 PM

i cant wait either...getting the seats recovered too... also, it seems like the car needs to be a bit lower now or maybe its just me. yeah, that Triad was a great buy and I think Ron has done an excellent job with the paint work. Hes been doing it forever, so i feel confident its getting done right.

Back to the EFI, I if i had the dough, I would go with TEC3 and TMW Idividual TBs...I think thats just a great looking setup. Again...if i had the dough!

ssetek 11-12-2004 02:47 PM

use a carrera intake and throttlebody, swap ot the wot swotch on the carrera tb for a tps off a 944, get a 964 flywheel with a 60 - 2 tooth pattern use a hall effect crank sensor on the flywheel and use a autronic ecu use the cht sensor for warm up enrichment , hope this helps as far as improvement goes its all in the tune, bad tune no difference --- good tune world of difference.

good luck.

dean 11-12-2004 04:42 PM

Re: EFI converts: speak up!
 
Quote:

Originally posted by jpnovak


Who is using EFI?
What system - electronics, throttle bodies, etc (please be specific)?
Shop or self install/tuning?
Did you dyno before/after?
Were internal changes made? If so, what changes? (cams/pistons, etc)
What are the driveablility changes?
Throttle response?
gas mileage?

Thanks

DTA Pro 8, stock Carrera manifold on a 3.0L 930 motor. I installed it myself. I did a before dyno but not an after. No internal changes yet. The motor runs better now. It feels crisper. I suspect that is cause the timing is better controlled now. The throttle response is worse than before. I think it is because there is a mismatch in the intake ports. I am planning to port the heads soon. The fuel mileage went up from 13.7 to 15.7 mpg.
Dean


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