Hey guys I am curious if anyone here has dynoed their gsr's with a greddy kit and did they have a wideband O2 in use as well. I was told the greddy kits tend to run lean up top for the benefit of making it a street legal kit and to pass emissions in Cali. I need to know if this is true, and what numbers have you come up with? I myself feel the car gets a little sluggish up top of the rpm band but I need others to confirm this as well, Thanks in advance people.


P.S. This is based for GSR's on stock internals and compression.
Nick


[Modified by boost killz, 1:29 PM 8/29/2001]

 

Do they run lean? I don't know about the GSR kit but my GOD was my **** rich on the dyno. Non-theless I layed down 195whp and 140wtq.. We let off @ 7,600 so I could have layed down 200whp I think with no problem. My fuel was off the chart rich after 6k, rich after 3k. I think with some tunning 220whp will be obtainable and I am still @ 6.5psi with no intercooler.

 

im interested as well.

 

me too because when mine gets to about 4-6k it starts not wanting to go. Still can hear it making boost but can not feel it.

 

It's usually 6.5k to redline that the needle will slowly move but i would assume you're almost pass the power band and then it flattens.



This dynoed gsr greddy equipt is just an example. Each car is different and i would think that towards the end of the power band, it flattens out no matter how much boost your running. I might be wrong but that's how i feel when shift all thru redline.

 

I thought Greddy added the 310 injectors to insure that it runs rich. That was my thinking. If anything you need to bring it to a dyno with a wideband o2 sensor to verify what your af ratio is. I'm willing to bet its more rich not lean. If you were lean you would have detonated and blew up.