4kq v8 : EFI on NA I-5

[Robert Mangas]

Well, my experience is more like squids to apples then, but when I went to 
fully programmable EFI on my Miata (still NA at that point) it really woke 
it up.  The factory calibration was really conservative, so less fuel and 
more spark easily net me 8-9 rwhp (don't scoff- that's >10%!) in the upper 
rpm range.

It can be a hassle though- some days I wish for the hassle-free cold start 
behavior of the factory ECU.

>From: Eric Sanborn <eric_audi.ql at mindspring.com>
>To: Jim Green <jeg1976 at yahoo.com>
>CC: SluggerXL1 at aol.com, Quattro list <quattro at audifans.com>
>Subject: Re: 4kq v8 : EFI on NA I-5
>Date: Thu, 22 Jan 2004 19:54:40 -0500
>
>Jim Green wrote:
>
>>I've always been curiouse what it would be like.  I'd
>>envision about 15 hp right off the bat just from
>>getting the fuel meter out of the way.
>>
>My experience is not exactly apples to apples, but similar.  I put EFI (in 
>my case SDS) on my 83 GTI about 6 years ago.  My motor was already rather 
>modified  with cam, compression, etc when I made the swap.  To throw 
>another wide card into the mix I changed to a later model Golf intake that 
>has longer runners when I did the EFI swap.  Even so the change was 
>amazing!  Even  on the first day with barely any tuning the car made much 
>better torque through the mid range.  Once I dialed in 35 degress of 
>advance at 2750 rpm it was even better.  I would say however that even 
>without timing control you would see a great improvement in mid range 
>power.  There is a reason the cis style flow meter is not used any more.
>
>--
>Eric Sanborn
>'85 4ktq
>
>http://sofadog.net/4ktq/
>
>
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