Will the si intake manifold fit and work on the hf head?

 

i was going to say yes, but now im not too sure. i want to say yes for sure, someone should vouch for this.

 

It will bolt up,but then it will throw a code for the EGR valve
if you still have the HF ecu..

If you use the Si manifold and ECU,I would imagine that
it is going to run fairly rich because the HF head does not flow as much
and was designed to operate at a lower RPM.

In short,the HF was designed for economy/fuel efficiency not high performance so
most likely you will be defeating it's purpose and reducing it's efficiency..

For all the effort,I would concentrate on finding a good
D16a6 to swap in at the very least...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CrxHf-Rider &raquo;</TD></TR><TR><TD CLASS="quote">Will the si intake manifold fit and work on the hf head?</TD></TR></TABLE>

But if your hell bent on trying it , i've got 2 of them laying in my shop.

 

And I've got one lying around

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rex-Si &raquo;</TD></TR><TR><TD CLASS="quote">

But if your hell bent on trying it , i've got 2 of them laying in my shop.
</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 rex &raquo;</TD></TR><TR><TD CLASS="quote">And I've got one lying around </TD></TR></TABLE>

And I've got a complete SI head and intake manifold with wiring harness laying around

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rex-Si &raquo;</TD></TR><TR><TD CLASS="quote">
But if your hell bent on trying it , i've got 2 of them laying in my shop.
</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 rex &raquo;</TD></TR><TR><TD CLASS="quote">And I've got one lying around </TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d357r0y &raquo;</TD></TR><TR><TD CLASS="quote">
And I've got a complete SI head and intake manifold with wiring harness laying around </TD></TR></TABLE>

i've got a complete si engine, if you want any part of it let me know. you know you want it

 

yeah it will fit but you will need to have it wired for mpfi. i suggest rywire.com they can wire it up pretty cheap and do a great job...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90JDMEF8 &raquo;</TD></TR><TR><TD CLASS="quote">yeah it will fit but you will need to have it wired for mpfi. i suggest rywire.com they can wire it up pretty cheap and do a great job...</TD></TR></TABLE>

You are on drugs man, the hf is MPFI. Leave the Hf motor alone. the intake manifold isnt going to do you any good, like some of the guys said, if you want performance, go with a swap.

 

if you plan on getting rid of the whole intake manafold let me know I might buy it same with the ecu.

 

well theres actually a problem with that with my tps sensor connected the car runs way too lean cause i have a cold air intake and header back exhaust so making it run "rich" would actually make it run better with the tps sensor hooked up or at least better right?

 

one problem. Hf pistons-not grooved for 16 valve. i happend to find that out after i already purchased a ported and polished si head.

 

how much for the entire engine. or even just the block cause thats all i need. i have a p/p si head. but like ive said before to people the hf block is useless because the pistons are not grooved.

 

the hf is mpfi. dx is dp injection.