help with horsepower..if you will.
Thread Starter
Instructor
Joined: May 2005
Posts: 127
Likes: 0
From: Sheffield Alabama
help with horsepower..if you will.
ok i know you get this question alot. and i searched to see if i saw a combo like mine to keep from asking again. but i missed it if it was out there.
so, if you will. help me guesstamate the horsepoweri might be making.
383
weiend team G intake
comp cams XE294H
1.6 roller rockers
AFR 195cc eliminator heads
holley 750
9.9:1 compression
long tube headers, 2 1/2in duels
MSD HEI, 6AL ignition
ive prolly forgot something you need to know.
so just tell me and i'll add it
thanks in advance guys.
so, if you will. help me guesstamate the horsepoweri might be making.
383
weiend team G intake
comp cams XE294H
1.6 roller rockers
AFR 195cc eliminator heads
holley 750
9.9:1 compression
long tube headers, 2 1/2in duels
MSD HEI, 6AL ignition
ive prolly forgot something you need to know.
so just tell me and i'll add it
thanks in advance guys.
Safety Car
Joined: Oct 2004
Posts: 3,920
Likes: 731
From: Youngstown Ohio
This link may be helpful. AFR dyno tested combos:
http://www.airflowresearch.com/store/chevy_dyno.php
http://www.airflowresearch.com/store/chevy_dyno.php
Thread Starter
Instructor
Joined: May 2005
Posts: 127
Likes: 0
From: Sheffield Alabama
thank you much guys. and id greatly appreciate that Clyde.
i also looked at the AFR website. i was thinking i was similar to the 383 with 503hp. but im not sure how different i'll be since i have a hydraulic cam.
i also looked at the AFR website. i was thinking i was similar to the 383 with 503hp. but im not sure how different i'll be since i have a hydraulic cam.
Burning Brakes
Joined: Jan 2006
Posts: 761
Likes: 0
From: san jose California
how much hp would he potentially lose if he ran 1.5 rockers instead of 1.6?
just asking because im going to be running almost the same set up but with
286HR comp cam
stealth intake
and 1.5 rockers
just asking because im going to be running almost the same set up but with
286HR comp cam
stealth intake
and 1.5 rockers
Safety Car
Joined: Oct 2004
Posts: 3,920
Likes: 731
From: Youngstown Ohio
Your peak horsepower may be similar, but your torque curve will be different (flatter, and will pull better from lower RPM's due to roller design). Yours won't sound as radical (less duration), but it won't need as much converter in an automatic. My guess is about 5 HP potential gain with 1.6's, as these cams seem to be optimized well for their combos.
Racer
Joined: Oct 2006
Posts: 412
Likes: 1
From: St. John's Newfoundland
Hey white lightning'
Sorry it took so long for me to get back to you. I ran your specs but only used 1.5 rockers.
I am a little unsure how to rate your intake..Single plane std. flow or single plane high flow so i ran it with both.
Single plane std. flow:
Max. H/P = 441 @ 6000 RPM
Max. T/Q = 436 @ 4500 RPM
Single plans high flow:
Max. H/P = 483 @ 6500 RPM
Max. T/Q = 446 @ 5000 RPM.
Hopes this helps. A roller cam would help you out some, but those AFR's are some head. I am also building a 383, but I am using Edelbrock E- Tec 200cc. I can't hit that H/P klevel. I am still playing with diffrent cams.
Good luck
Clyde
Sorry it took so long for me to get back to you. I ran your specs but only used 1.5 rockers.
I am a little unsure how to rate your intake..Single plane std. flow or single plane high flow so i ran it with both.
Single plane std. flow:
Max. H/P = 441 @ 6000 RPM
Max. T/Q = 436 @ 4500 RPM
Single plans high flow:
Max. H/P = 483 @ 6500 RPM
Max. T/Q = 446 @ 5000 RPM.
Hopes this helps. A roller cam would help you out some, but those AFR's are some head. I am also building a 383, but I am using Edelbrock E- Tec 200cc. I can't hit that H/P klevel. I am still playing with diffrent cams.
Good luck
Clyde
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Thread Starter
Instructor
Joined: May 2005
Posts: 127
Likes: 0
From: Sheffield Alabama
thanks for the replies guys. and thanks so much Clyde.
im hoping my intake counts as a high flow because i was shooting for at least 475..but 44-450 will work for now if not. and as for a roller cam...i would like to. i just cant see speeding the money at this time. in the next year or 2 im going to change cams and add a procharger supercharger, so i may go roller then..we'll see.
again tho..thanks guys.
im hoping my intake counts as a high flow because i was shooting for at least 475..but 44-450 will work for now if not. and as for a roller cam...i would like to. i just cant see speeding the money at this time. in the next year or 2 im going to change cams and add a procharger supercharger, so i may go roller then..we'll see.
again tho..thanks guys.
