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Author Topic:   Camshaft question
66 fastback
Gearhead

Posts: 170
From: Califon, NJ 07830
Registered: Oct 2003

posted 11-21-2005 10:25 AM     Click Here to See the Profile for 66 fastback   Click Here to Email 66 fastback     Edit/Delete Message   Reply w/Quote
I am in the process of installing this fuel injection kit on my stroker,

http://www.mass-floefi.com/MF302.html

I have a bad case of the "while I am it" syndrome. I have a Comp Cam XE266HR camshaft in the engine now, I saw Comp has released a new camshaft intended for 5.0 strokers with EFI. Here are the available details from Comp Cams. http://www.compcams.com/information/whatsnew/NewsDetails.asp?ListHistoryID=-1779858990

So, I'm thinking this might be a nice improvement over the 266 I am currently running. Here are the details of my 331 stroker in its current form,
AFR 185 heads
The new EFI intake will be a torker II
SRP pistons
Scat crank and H beam rods
Will have a Mallory TFI dizzy
TriY headers connected to a 2 1/2 MagnaFlow exhaust system

With the Air Gap intake and 650 Speed Demon carb this motor produced 410 HP at 4800 rpms, 430 # torque at 4100 rpms. I am running a modified C4 and a 3.55 Trac Loc rear.

Any opinions on this change? There really is not a lot of info out there about this cam. Even from the Tech guys at Comp, one guy there told me it was intended for large displacement strokers. Funny thing is the release states it is specifically for the 5.0 strokers.


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V8 Thumper
Gearhead

Posts: 4692
From: Phoenix, Arizona
Registered: Dec 2001

posted 11-21-2005 11:04 AM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
I first have to say that my knowledge of fuel injection is limited, so I am by no means an expert. However, there is alot of truth to the dynamic changes within an internal combustion engine when critical parameters (i.e. stroke) are altered. Combine that along with the specifics of fuel injection and it's needs for volumetric efficency, I'm sure there's plenty to be gained in optimizing the valves' opening and closing events. I personally would look into a profile specifically engineered for your method of aspiration. Those Comp guys are pretty sharp; I'd look into what they have to offer

I know all too well about the 'while I'm at it' deal

------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

12.58/110 on street tires, more to come;)

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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