if i put a p73 ECU in my 00 Si will it help or hurt my performance anything will help

 

might add too much fuel.

 

try it and find out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by faststkSi34 &raquo;</TD></TR><TR><TD CLASS="quote">if i put a p73 ECU in my 00 Si will it help or hurt my performance anything will help
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It will engage VTEC too late and raise the fuel cut, which could potentially be dangerous. It also will not have the proper curves for B16A cams.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
It will engage VTEC too late and raise the fuel cut, which could potentially be dangerous. It also will not have the proper curves for B16A cams.</TD></TR></TABLE>

I agree that it wouldn't be ideal for the B16 but wouldn't it engage the VTEC to soon (4400 rpm) vs the stock 5400 rpm, rather than to late?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00Red_SiR &raquo;</TD></TR><TR><TD CLASS="quote">

I agree that it wouldn't be ideal for the B16 but wouldn't it engage the VTEC to soon (4400 rpm) vs the stock 5400 rpm, rather than to late? </TD></TR></TABLE>
You're thinking of the P72.

 

ahhhh right. Thanks

 

Go for it.

Mine ran like a champ with the stock cams. Just don't hold your revs at over 8200 for long if you have stock valvetrain.

My stock numbers with bolt-ons and ITR ecu with V-AFC tuning was 148 whp and 102 ft.-lbs.

But whoever stated previously about dumping alot of fuel in is correct. Definitely get something to tune with, then go to the dyno.

 

I think the P73 is real close timing wise and vtec to a P30 but the revlimit is higher and also it would dump more fuel as I was saying cause of the displacement of the ITR motor and also the cams