Picking Cam For Electric Fuel Injection ?

[62Falcon390]

mine is the first gen fast as well,, and its just a standard bore 390,, would be abit calmer in a bigger engine.. i plan on stepping up cam next year once the cars straightened out better

[allrightmike]

   How much does the displacement of an engine affect it's tolerance for a given set of cam timing specs? Specifically lobe separation and it's effect on intake manifold vacuum as it pertains to EFI.

[427HISS]

Wow, I finally made a decision on my valvetrain. I spoke with Scott of Cam Research, who won me over. I found out they make their own lifters (don't know about cams) out of tool steel and are Pressurized, which works great on the street, same as a few other top company's mechanical's lifters. I hope,...I made the right decision, as I've never heard of them until I built my 427 Cobra.

I will order on Monday.,The cam, lifters, rods, spring kit etc. all from Cam Research. All they do is Fords. The lifters are Pressurized  and ''tool steel''. The cam specs are real close to what David Dove suggested, just a little less on the exhaust. He said it'll be the ''perfect cam''. Intake-244, Exhaust-248. LSA-112. Lift-640.  Cost $1,610. Check out their website. I can't wait to get started after getting the parts !

http://www.camresearchcorp.com/shop/uncategorized/lifters-roller/?fbclid=IwAR1dLa6v1HYNK-MvHms-BlCkcg98MaOIwE1efs0YUz2GdzXgfBiKa9biPPE

 

[TomP]

It should still be pretty mild so driveabilty and gas mileage should be fine.
 When i first put my 454" 427 together i had stock Cobra Jet heads and dial quad Medium Riser intake, i had a Crane solid that was 248 at .050 and .587 lift. It felt like the power curve started at idle speed. Still would go to 6500rpm.

I still have the cam, at one point i thought of sticking it in the Meteor wagon's 332 which i'd imagine would make it behave like a 125cc two stroke dirt bike and probably change the power range to 4000-9000

[427HISS]

I hope it's not mild !  That's exactly what I don't,...want.

So what's past mild into, wow ?

[62Falcon390]

if you have the gen1 Faste efi kit,, Fast offers an upgrade to the XFI Street for 249US.. call them, let them know you want to upgrade to the xfi street, you send in your eu and handheld and they send the xfi street ecu, cables,screen.. all directly plugs into the gen1 harness.. its programmable, check it out..

[427HISS]

I'll try with your information, but when I called them a couple of years ago, they said to upgrade mine, would cost as much as a new one.

[62Falcon390]

contact matt maxwell, i can send his email to you

Rick

[427HISS]

Sounds great. Thanks.

[My427stang]

Earlier in this thread I was trying to help and you half-heartedly asked if I was being an a$$.  I decided I was going to butt out after that. However, I don't want to see someone wreck an engine on first start up.

Depending on cam timing, lift, and valve size, a Speedpro piston may not take much lift at all, and especially unlikely to handle over .600.  You never know, tolerances stack, sometimes in our benefit, but left and right banks are slightly different with those pistons installed and they are absolutely not designed for that big cam market

Be prepared to check with clay and be prepared to swallow that you may have to cut the valve reliefs, great budget pistons, but they aren't designed for big valves and big cams

[427HISS]

I don't think you're as ass Ross. Forgive if I did so. I'm open to of your knowledge, advise and opinions.