Need a better cam

[import convert]

then you wat a cam that runs a little high for a powerband because youll be reving high cause of your gear ratio

[gadget73]

The E really does not have good low end power. They come on about 2500-3000 rpm, despite what they advertise it as.

There's a guy on Corral that runs a 5.0 Volvo with a custom cam thats pretty close to an XE258. He often suggests the 258 for heavier cars. I think he gets like mid 20s for fuel economy and says it has lots of power. The numbers on that cam look really nice for low end power and it should still make poiwer through 5500 or so.

[GilroyRacing]

So the E cams powerband starts around 2500-3000 rpm when does it stop?

[Nathan in MI]

Colin (Mr. Land Yacht) is running an E-cam in his Merc, and he seems to have it pulling strong right up to 6500.

[mrltd]

XE264 idle + rev

[Grandmarchris]

Comp XE270 HR PN 35-351-8
and
RHS Pro Action 180cc Heads http://www.racingheadservice.com/Inf...Ford_180cc.asp
Cast Iron- 35304-02
Aluminum-35004-02

[SLYDAWG]

"Thats what I have now. P/P E7s with a HO cam that has been advanced 4*."

Try retarding that cam 4* and get back to us with the results.

"I was trying to find the 15511 I was told at idle you couldnt tell the difference between a stock cam and it."

Are you trying to hide the lopey cam sound at idle?

What are your local track/class rules?

More info please!!!

[Mr. Land Yacht]

thats a real nice video mrltd..sounds nice and mean!

[GilroyRacing]

"Thats what I have now. P/P E7s with a HO cam that has been advanced 4*."

Try retarding that cam 4* and get back to us with the results.

"I was trying to find the 15511 I was told at idle you couldnt tell the difference between a stock cam and it."

Are you trying to hide the lopey cam sound at idle?

What are your local track/class rules?

More info please!!!

It is a Stock class.

[packman]

Thanks Mrltd; now I gotta do some laundry after watching that vid!!!

If you're running a stock class, I'd guess that aftermarket cams are out of the question. Otherwise, I would suggest calling Comp Cams, Crane, or any of the other cam manufacturers, tell them what you want and see what they suggest.


Packman

[gadget73]

You can do an awful lot with that stock HO stick. Advancing the cam will lower the power peak. If you need it to pull longer, try setting it to 0 or retarded 4 degrees. This will cost you a bit of bottom end but with a 4.30 gear that won't matter too much. Keeping the stock cam will keep you from having issues with the ECM and probably from violating the class rules if it mandates stock, though depending on their interpretation of "stock", you're already breaking that.

Depending on how well ported your heads are, they might be hurting you. Improperly ported heads will either do no better than stock, or they might do worse, depending what metal was removed. Big valves are also usually not the best idea on a small inch and near stock motor.

some interesting reading about valve sizes.

http://www.hunterstyle.com/thumper/valvesize.php

What are you running for an intake? exhaust? what converter in the trans? Whats your goal with this, best 1/4 time, consistant bracket times, something else?

[ironstealth]

B and E cam are not SD friendly.

most aftermarket cams have pretty aggressive lift, so you need to be worried about P/V clearence.

HO cam is pretty good, if you advance it 4 degrees.
you may be better off advancing the HO cam and getting some ported E7 heads or P heads.

if you are worried about the sd system and idle quality, many tuners suggest a 3/8'' hole in the throttle body plate-do it off the car

[P72Ford]

thats a real nice video mrltd..sounds nice and mean!

Indeed. I believe I shot that video at SF... I hear myself in the background.

A big car needs a cam with low end grunt, unless you are circle track racing it (which you are, right GilroyRacing?)... where you use the power up high more than anywhere else. 2500-3000 is late for a big car driven on the street/ drag raced.

Local "stock" classes here allow some deviation, I believe.

[GilroyRacing]

yes, coming out of the turn its around 3500-4000 rpm

[OVERKILL]

My cam comes on like a light-switch, but definitely doggy below ~2,000RPM, comes on hard north of 2,500RPM.

Take the descriptions of the FMS alphabet cams with a grain of salt......... They have a 2,800-3,200lb Mustang with a stick in it in mind when they make those recommendations......