This may sound like a stupid question. What are the differences between a 90 model HF and Si. Would it be hard to make a HF a Si because some one might give me a Si motor. Could someone clear this up For me Thanks.

 

motor goes right in. No wiring required both cars are allready mpfi.

 

like the guy says,they're both mpfi so the engines will interchanged no problem,and the si ecu will plug in no problem..

as far as differences there are some,like the si has a sunroof,bigger front hubs,stronger larger axles,shorter geared tranny,sunroof,rear interior compartment,black/grey interior instead of blue?,nicer seats imo,alloy wheels,the 90-91 si has disc brake in the rear,etc,etc,etc.....

hf has a better turning ratio though,lighter weight,both models have factory lips,hf has a factory shiftlight,

Theres's some more differences.

 

the hf also had a smaller gastank, and i think it didnt have a rear swaybar and it also had a smaller front swaybar if i remember correctly. no rear wiper also on the hf

 

First of all let me welcome you to HT. Second of all the best thing to do when you first come to HT is read the FAQ. It has pretty much every answer you need. Lets see here I will help you out with your first question.

What are the differences between a 90 model HF and Si?

Here is the link that would help you.
https://honda-tech.com/zerothread?id=650219

It has it displayed right on the FAQs.
I hope this could help and Good luck.

 

what about a dx to a si what changes will need to made to the motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx noob &raquo;</TD></TR><TR><TD CLASS="quote">what about a dx to a si what changes will need to made to the motor.</TD></TR></TABLE>

dx has 2 injectors vs. the hf/si 4 injectors..so you'll have to convert the dx to multi point fuel injection, there's a great writeup here. http://fourthgenhatch.net

 

thanks this helps so much

 

this thread is retarded.. try searching . or go to faq.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by janz3n &raquo;</TD></TR><TR><TD CLASS="quote">this thread is retarded.. try searching . or go to faq. </TD></TR></TABLE>

Was your post even necessary at all?

 

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

Was your post even necessary at all?</TD></TR></TABLE>

i helped the guy didnt i? these noobs are too lazy to look around before posting questions that have been covered many a times

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by janz3n &raquo;</TD></TR><TR><TD CLASS="quote">i helped the guy didnt i? these noobs are too lazy to look around before posting questions that have been covered many a times</TD></TR></TABLE>And I am sure at one point you were the same way!