I want to do a dpfi to mpfi in my DX. Can I use the mpfi and dist from a hf and just get an si ecu?? Is the hf mpfi really any different from the SI mpfi??

 

Im sure it will work, I dunno about size tho... free bump.
PS, you can use the hf dizzy if u want too, and if you need a pm6 manual, I have one.
Ryan

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by liquidoblivion &raquo;</TD></TR><TR><TD CLASS="quote">I want to do a dpfi to mpfi in my DX. Can I use the mpfi and dist from a hf and just get an si ecu?? Is the hf mpfi really any different from the SI mpfi??</TD></TR></TABLE>

it will work but the intake runners on the HF are tiny (= no performance).

get an a6 intake, the dist is the same between the two cars.

 

Thanks for the info, thats what I figured.... I have a si intake mani, ecu, and dizzy if ya need it man.
Ryan

 

i would like to use what i got. Do you think the tiny hf runners would be any better than the dual point?? Really what im doing is helping my friend with his hf, his head is tost and im putting a ZC in my DX and want to sell him my engine. Trying to figure out the best plan to get my DX engine running in his HF. Not to worried about performance, he just mainly wants a good running car.

 

the engine you're getting should come with the manifold, but if not, just get an a6 manifold w/ rail and injectors. and then do the wiring. doing a search also helps greatly newb.

 

reading also helps newb. It doesn't make one look very smart when you call someone a newb without knowing whats going on, or knowing if they are really a newb or not. If you read you will see Im putting a ZC in my DX. Yes the ZC I have came with the manifold, I plan on keeping it with my ZC thank you. I have a friend with an HF w/ a blown head. We want to put my DX(DPFI) into his HF. And if you can find a thread here about the best way to put a D15 into a hf with the manifolds at hand let me know.


Modified by liquidoblivion at 6:43 PM 10/24/2004

 

he has 54 posts... i guess he's old school...

 

As long as you swap all the parts (complete manifold, and distro) from the HF engine onto the DX block, it should perform no worse than his old engine.

It actually doesn't even count as any sort of a conversion to me - all the MF=PFI system stays the same, just the shortblock is replaced.

...yeah.....

noob!

 

hey i have a Q? i put a obd1 92 zc in my 89 ef i ran all my injectors straight from the ecu i have the injector resistor box ran the two wires from c1 and c2 to the si dizzy blue/green and blue/yellow and moved the c1 and c2 to b10 and b12 car is throwin check engine lights 4,7,9,10,14,20 car will start and idel wont rev over 1,900 rpms i want to drive it soon can someone help please

 

oh yeah it has the jdm mpfi zc manifold on it and i fliped the tps sensors wires green and yellow

 

arent something about the way the shock tower stuff is ran different from hf to si cars, its way easier to build your harness anyway

 

so is that helpin me with the zc swap or the other guys with there hf to si problem

 

I would think the manifold should fit.
So let me get this straight, you're taking the D15 from your car, putting it in the HF? If so, HF manifold + D15 block and head + HF dizzy should work perfect. Physically, they should be the same.