My dyno plot. Crower 63402a's Vs Toda Spec C's
First, this is a MUSTANG DYNO! Numbers read lower than dynojets although these numbers seem low to me even for a Mustang Dyno. The first runs were made with Crower 63402a cams. I had 3 broken bolts where the exhaust manifold bolted to the head so there was an exhaust leak. With the fixed exhaust leak I would expect even more power out of the Crowers. The only real change between the two runs was the fixing of the broken bolts.
The car is running STOCK ECU with a VAFC. I am also running stock injectors. Jack @ P1 did all that he could with what he had to work with.
to Jack for being a great guy!
Here's the dyno plot, as shocking as it may be, the Crowers laid down more power than the Toda's! I will have to say that the craftsmanship of the Toda's is MUCH better than the Crowers but I never had a problem with them. I ran about 10k miles on the Crowers and they looked brand new when I took them out.
Here's the dyno:
The car is running STOCK ECU with a VAFC. I am also running stock injectors. Jack @ P1 did all that he could with what he had to work with.
to Jack for being a great guy!Here's the dyno plot, as shocking as it may be, the Crowers laid down more power than the Toda's! I will have to say that the craftsmanship of the Toda's is MUCH better than the Crowers but I never had a problem with them. I ran about 10k miles on the Crowers and they looked brand new when I took them out.
Here's the dyno:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2 »</TD></TR><TR><TD CLASS="quote">that does seem kinda low, even on a mustang dyno. did you ever do a baseline on that dyno with the stock motor?</TD></TR></TABLE>
What he said.
What he said.
I did not get a baseline on the stock setup. I did do a compression test on the Crower cams and it was even across the board, don't remebmer what the numbers were off hand.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by El Pollo Diablo »</TD></TR><TR><TD CLASS="quote">Any pictures of the A/F graph?</TD></TR></TABLE>
I did not ask Jack for one. Jack, can you post or email to me if you see this?
I did not ask Jack for one. Jack, can you post or email to me if you see this?
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vteczone »</TD></TR><TR><TD CLASS="quote">toda recommended the vtec engagement to be at 7k..
shud make a lot of different</TD></TR></TABLE>
Reeally? On a stock revving engine, that doesn't seem like it'd be very enjoyable. Just over 1k rpm of vtec
Might as well just go all out and get teh VtaK Killah cams!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso »</TD></TR><TR><TD CLASS="quote">Hows the butt dyno feel?</TD></TR></TABLE>
Yeah....did your cheeks tell you that it felt betteR?
shud make a lot of different</TD></TR></TABLE>
Reeally? On a stock revving engine, that doesn't seem like it'd be very enjoyable. Just over 1k rpm of vtec
Might as well just go all out and get teh VtaK Killah cams!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso »</TD></TR><TR><TD CLASS="quote">Hows the butt dyno feel?</TD></TR></TABLE>
Yeah....did your cheeks tell you that it felt betteR?
weak numbers....
My stock engine does better... Something is wrong here..
Had the same crower cams in the past and no problems with them until I sold the away.
My stock engine does better... Something is wrong here..
Had the same crower cams in the past and no problems with them until I sold the away.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ScreaminTeg »</TD></TR><TR><TD CLASS="quote">
Reeally? On a stock revving engine, that doesn't seem like it'd be very enjoyable. Just over 1k rpm of vtec
Might as well just go all out and get teh VtaK Killah cams!
</TD></TR></TABLE>
at least for the spec D vtec point was at 7500rpms, with high CR 12.8
To get the best gains out of the spec C higher CR is needed.
Reeally? On a stock revving engine, that doesn't seem like it'd be very enjoyable. Just over 1k rpm of vtec
Might as well just go all out and get teh VtaK Killah cams!
</TD></TR></TABLE>
at least for the spec D vtec point was at 7500rpms, with high CR 12.8
To get the best gains out of the spec C higher CR is needed.
Not surpising
gotta look at the big picture, not what is percieved as the best go fast part
the crowers seem like they are better suited to your engine
C's would make more power in a different engine.
gotta look at the big picture, not what is percieved as the best go fast part
the crowers seem like they are better suited to your engine
C's would make more power in a different engine.
WTF...those are really low numbers...I love my Crowers...seems like people on h-t dont give much credit or respect to crowers even though they arr proven to make power...I have had my crower 63403's, valvesprings, retainers, and valves in for 5000 mi. and the cams, valvetrain and rockers still look brand new... I am very happy with them...I would definatly recomend them
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GokuSSJ4 »</TD></TR><TR><TD CLASS="quote">
at least for the spec D vtec point was at 7500rpms, with high CR 12.8
To get the best gains out of the spec C higher CR is needed. </TD></TR></TABLE>
Yeah, I knew that it was pretty high. I was just being silly with that comment really.
at least for the spec D vtec point was at 7500rpms, with high CR 12.8
To get the best gains out of the spec C higher CR is needed. </TD></TR></TABLE>
Yeah, I knew that it was pretty high. I was just being silly with that comment really.
THe numbers do look low (even for the Mustang), but you can provide something very meaningful in the form of a 1/4 trap speed. That'll tell alot about how much power you're making. Typical ITR with I/H/E rolls through the traps between 98-100mph. With big cams like yours I'd expect at least another couple mph.

For comparison, this is my recent dyno plot from Jack's tuning @ P1. This is a stock bottom end b16a2 with Skunk2 stage 2 cams, Icebox, TODA header, 2.5" exhaust, 11:1ish compression (milled head and Mugen gasket), and a Power FC.
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