hp/tq numbers
Thread Starter
Instructor
Joined: Jun 2001
Posts: 188
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From: nova scotia canada
hp/tq numbers
Could someone give me an idea of my hp/tq numbers.Dart pro1 heads (202/160) 200cc intake runner,64cc chambers. I'm running a crane 278h10 with 1.6 full roller rockers giving 498 lift i/e and aprox.224 dur.
This is in a 4-speed vette with 3:36 gears.Also have all msd gear,750 holley
(3310),hedmen headers,duels with h-pipe,4 eyebrow flattops,'70 LT!/Z-28 al. duel plane highrise intake,k&n filter with extreme airflow top.My cr is 10:1.
thanx wade
This is in a 4-speed vette with 3:36 gears.Also have all msd gear,750 holley
(3310),hedmen headers,duels with h-pipe,4 eyebrow flattops,'70 LT!/Z-28 al. duel plane highrise intake,k&n filter with extreme airflow top.My cr is 10:1.
thanx wade
Melting Slicks
Joined: Apr 2000
Posts: 3,286
Likes: 8
From: San Jose California
Re: hp/tq numbers (wadey)
Wadey,
No one can really say. Even if they knew what power your combo should make, that doesn't mean your engine is actually making it. Guys spend thousands of $$ on parts and yet they won't spend $100-200 for dyno time to see what is going on. My L88 was very potent when I drove it, but when I put it on the dyno the numbers were very disappointing. I discovered the throttle cable bracket had slipped and I was only getting about 3/4 throttle. The next dyno run I made 483rwhp instead of only about 411.
Timing, jet settings, linkage, valve clearance, exhaust systems, fuel delivery, float levels, cam timing, leaky gaskets, etc, etc, all combine to make or break your numbers. Don't settle for a from the hip guess. You've got some very good parts. See what it actually makes and find what can be adjusted for improvement. Have them weld a bung onto your collector for an O2 sensor to get a/f ratios throughout your curve. Measuring the temps of the primaries as they come off the head is a great way to find weak cylinders. Infrared ones usually don't go high enough for full power runs above 1000 degrees, but Sears sells ones using a probe going above 1200 Fahrenheit for $50-60.
For what it's worth, if you have a manual trans you could probably make ~300 rwhp, a bit less with an automatic. A friend of mine on the forum TSW71 has a similar combo and only made about 280rwhp. It feels like it should make more which is the point I'm trying to make.
Chuck
p.s. Welcome to the forum! :cheers:
[Modified by Chuck Harmon, 11:36 PM 11/25/2003]
No one can really say. Even if they knew what power your combo should make, that doesn't mean your engine is actually making it. Guys spend thousands of $$ on parts and yet they won't spend $100-200 for dyno time to see what is going on. My L88 was very potent when I drove it, but when I put it on the dyno the numbers were very disappointing. I discovered the throttle cable bracket had slipped and I was only getting about 3/4 throttle. The next dyno run I made 483rwhp instead of only about 411.
Timing, jet settings, linkage, valve clearance, exhaust systems, fuel delivery, float levels, cam timing, leaky gaskets, etc, etc, all combine to make or break your numbers. Don't settle for a from the hip guess. You've got some very good parts. See what it actually makes and find what can be adjusted for improvement. Have them weld a bung onto your collector for an O2 sensor to get a/f ratios throughout your curve. Measuring the temps of the primaries as they come off the head is a great way to find weak cylinders. Infrared ones usually don't go high enough for full power runs above 1000 degrees, but Sears sells ones using a probe going above 1200 Fahrenheit for $50-60.
For what it's worth, if you have a manual trans you could probably make ~300 rwhp, a bit less with an automatic. A friend of mine on the forum TSW71 has a similar combo and only made about 280rwhp. It feels like it should make more which is the point I'm trying to make.
Chuck
p.s. Welcome to the forum! :cheers:
[Modified by Chuck Harmon, 11:36 PM 11/25/2003]
Thread Starter
Instructor
Joined: Jun 2001
Posts: 188
Likes: 0
From: nova scotia canada
Re: hp/tq numbers (wadey)
chuck thanx for your reply, i understand what you're saying but i was asking for a ballpark on hp/tq numbers because i don't have access to a dyno in the area that i live.I really just wanted a general idea and am not concerned about squeezing every last hp out of this engine.
thanx wade
thanx wade
