Desktop dyno
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Senior User
Joined: Aug 2002
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From: Argyle USA
Desktop dyno
Could someone run the following combination on their desk top dyno:
1979 302 Bored 30 over. Flat top pistons. 10:1 compression. Stock rods and crank. Stock cylinder heads. 600 cfm edelbrock 4bbl. Factory exhuast manifolds. MSD 6A ignition, MSD Blaster coil, MSD probillet distributor. K&N air filter w/ XStream flow top. Edelbrock water pump and fuel pump. Double roller timing chain.
with these variations:
Edelbrock Performer intake with comp cams XE256
Edelbrock Performer RPM intake with comp cams XE256
Edelbrock Performer intake with comp cams XE262
Edelbrock Performer RPM intake with comp cams XE262
I'll be using the comp cams kit so it would have the correct lifters, springs, spring retainers, valve guides, and valve locks.
If thats too many combinations to run I would appreciate it if someone will run the XE262 w/ the Performer RPM as it is the most important and what I will probably be using.
Thank you very much.
Nick
1979 302 Bored 30 over. Flat top pistons. 10:1 compression. Stock rods and crank. Stock cylinder heads. 600 cfm edelbrock 4bbl. Factory exhuast manifolds. MSD 6A ignition, MSD Blaster coil, MSD probillet distributor. K&N air filter w/ XStream flow top. Edelbrock water pump and fuel pump. Double roller timing chain.
with these variations:
Edelbrock Performer intake with comp cams XE256
Edelbrock Performer RPM intake with comp cams XE256
Edelbrock Performer intake with comp cams XE262
Edelbrock Performer RPM intake with comp cams XE262
I'll be using the comp cams kit so it would have the correct lifters, springs, spring retainers, valve guides, and valve locks.
If thats too many combinations to run I would appreciate it if someone will run the XE262 w/ the Performer RPM as it is the most important and what I will probably be using.
Thank you very much.
Nick
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Joined: Aug 2003
Posts: 3,705
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From: Wichita KS
hey nick i don't know what heads you are running so i used airflow data for a set of e7te's and this is what i got
using the xe256 hp-236@4500 rpm
tq-330@3000 rpm
using the xe262 hp-240@4500 rpm
tq-326@3000 rpm
both of them i ran at 0 deg timing and i am sure you can get better numbers if you adv/ret the cam a few deg
hopw this helps let me know if you need anything else
using the xe256 hp-236@4500 rpm
tq-330@3000 rpm
using the xe262 hp-240@4500 rpm
tq-326@3000 rpm
both of them i ran at 0 deg timing and i am sure you can get better numbers if you adv/ret the cam a few deg
hopw this helps let me know if you need anything else
Thread Starter
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Senior User
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From: Argyle USA
Wow I'm surprised torque fell with the 262. Thats nice to know though. Anyone know why it'd do that?
I appreciate you running that for me, it helps me out a great deal!
Thank you,
Nick
I appreciate you running that for me, it helps me out a great deal!
Thank you,
Nick
Postmaster
Joined: Aug 2003
Posts: 3,705
Likes: 4
From: Wichita KS
to put it simple nick, the rest of the motor just isn't built for the cam. If you did even a home porting job and put a set of headders on it you would se a great deal of improvement.
l8tr
your wecome/no prob
Duane Jones
Wichita Kansas
l8tr
your wecome/no prob
Duane Jones
Wichita Kansas
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From: Argyle USA
I hate to step the cam down as I plan to upgrade to GT40P heads at some point. I won't be using headers as I am using a front sway bar which won't work with headers, I'll be using the benefits of the sway bar more often than I'd use the power of the headers I think. What kind of porting/polishing do you guys recomend? What does the power look like if I run the GT40P heads instead?
Thank you,
Nick
Thank you,
Nick
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From: Argyle USA
Are there any exhuast manifolds that flow better than the ones I have or are they all the same?
Nick
Nick
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Joined: Aug 2002
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From: Argyle USA
Ok I was at a swap meet and found a 351W out of an 80s truck (I was told) for $25 bucks complete. I bought it for the heads incase my 302 has the small combustion chambers which would make my compression ratio too high. I pulled the heads, sold what was left. I ran the numbers on the heads (they're D8OE AB if I remember right, I'm at school right now) and according to the book they are the highest (best) flowing factory small block ford heads available (I assume this excludes the GT40 and GT40Ps). I also will be purchasing some shorty headers (ceramic coated) so these two additions should really allow the cam to work better. The heads will stay mostly stock with some exhuast runner smoothing and gasket matching.
Can someone run this on Desk Top Dyno? Same as before but with D8OE heads and shorty headers?
If so I'd greatly appreciate it.
Appreciate the help,
Nick
Can someone run this on Desk Top Dyno? Same as before but with D8OE heads and shorty headers?
If so I'd greatly appreciate it.
Appreciate the help,
Nick
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Joined: Jul 2003
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From: North of Toronto, Ontario
Run long tube headers, you'll get more out of them. I haven't put a cam in my truck yet, but i remember that the comp 256 gave the best low end torque, if thats what you're after.
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From: Argyle USA
I like long tubes but because the truck will be lowered and have a sway bar (some manufactures say not sway bars with their headers) I don't want to have to mess with the clearance issues involved. I also like the fact that the shorties will keep the starter heat down, I know you can put shields on the starter and wrap the headers and all (but that voids most header manufatures waranties) but I'd rather use the shorties which I think look better anyways. If it wasn't my daily driver and was a full on race truck or a 4x4 I'd for sure go for long tubes.
Nick
Nick
