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-   -   vristang.... question about your post on stangnet (http://www.streetstangs.net/showthread.php?t=6736)

QWKSNKE 07-06-2006 05:09 AM

vristang.... question about your post on stangnet
 
I saw this..

Quote:

Originally Posted by vristang at another site
5. Change Injector High/Low Slopes per TwEECer Manual. If using a 190/255lph pump, or using Cobra ecu, then set both same

This is the first time I have seen this statement used. Why do you recommend this?

vristang 07-06-2006 12:42 PM

Re: vristang.... question about your post on stangnet
 
Quote:

Originally Posted by QWKSNKE
I saw this..



This is the first time I have seen this statement used. Why do you recommend this?

I think I had read that in the Tweecer manual.
For some reason the Cobra .bins seem to use the same slopes.

I started my X3Z tune this way and it seemed pretty close, but I did need to make some adjustments.
That is about all the detail I can offer on that.

Keep in mind that the initial slope settings are going to be rough anyway. KAMRF based adjustments will probably need to be made regardless.

jason

QWKSNKE 07-06-2006 01:29 PM

Re: vristang.... question about your post on stangnet
 
yeah I knew that the x3z OEM settings were that way. Just wondered if you had confirmed that all x3z injector slopes should be set that way when modifying

Italian LX 07-06-2006 01:35 PM

Re: vristang.... question about your post on stangnet
 
Also, I'm curious as to why you would put the fuel pump size stipulation in there.

93Cobra#2771 07-06-2006 02:41 PM

Re: vristang.... question about your post on stangnet
 
x2

Cougar5.0 07-06-2006 04:20 PM

Re: vristang.... question about your post on stangnet
 
The pump thing (I've seen that recommended somewhere else on the web - I think that's where he got that from) may be related to how I've had to cut way back on my fuel up top after installing my BAP. OTOH, I am now wondering if they were referencing a returnless system WRT the pump sizing? Anyway, these are the thoughts that popped into my head reading this.

vristang 07-06-2006 06:01 PM

Re: vristang.... question about your post on stangnet
 
I just pulled up the ZAO .bin for the 95 Cobra R.
Both slopes are set to 24lb.

I just looked at the Tweecer manual, and that said nothing about setting the slopes the same.

Does anyone know what size fuel pumps the 93 Cobra and 95 Cobra R came with?

jason

QWKSNKE 07-06-2006 06:09 PM

Re: vristang.... question about your post on stangnet
 
Don't know about the 95 r but the 93 came with the same pump as the standard 5.0's (88lph)

vristang 07-06-2006 06:19 PM

Re: vristang.... question about your post on stangnet
 
Well I guess the pump stipulation didn't come from the Cobras then.

I fear that I won't be able to quote a source, since I didn't start keeping track of most info until a few weeks into my research.

I am glad to hear Cougar5.0 say that he has seen this mentioned before. If I am crazy then atleast I'm not crazy and alone.

I am using the X3Z, 30lb injectors, and have both slopes set to 30.5.
My KAMRFs seem happy with that.

I'll look some more and see what I can find.

Something I had not considered until just now is the way the A9* series uses the Injector Breakpoint. Maybe this has something to do with it?

jason

vristang 07-06-2006 06:23 PM

Re: vristang.... question about your post on stangnet
 
Also, I have heard mention that when using larger fuel pumps (190 and 255lph) the stock regulator can have trouble maintaining a fuel pressure setting.

The thought is that the pumps are too strong for the regulator to maintain control.

This may explain the fuel pump recommendation.

jason

EDIT; Qwksnke - Are you using a Tweecer with your x3z?


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