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Author Topic:   Horse Power
Rookieracer76
Dirt Freak

Total posts: 289
posted February 12, 2004 07:32 PM  
Just curious to know what kind of horsepower you guys are making. im making approx. 385hp with a 355 running in the top ten. what about you guys?

Dunbar
Dirt Maniac

Total posts: 133
posted February 12, 2004 10:42 PM  
we run a 408 right around 415 horses. but to be honest theres guys in my class that have right around 450+. i've been runnging from 6th to 15th. So decided to sit this yr out and build a 421 and see if i can get 500+ out of it. Competition getting pretty tough.

25JHenry
Dirt Full Roller

Total posts: 73
posted February 13, 2004 05:57 AM  
Your getting up there in horsepower for a "pure-stock or bomber". Which is fine when you can bend the rules and do it. Our track is really cracking down and actually teching some of us now. They are tryin to make it more affordable to race and be competitive.
We make around 325 h.p. and are legal. run the top 5 every week and could have won a few but we have had bad luck w/ flat tires, bumper came loose while leading (due to contact), intentionally spun by a fellow competitor twice while leading, and I'll admit it, over drove the car in turn 3 and spun myself out while leading with 2 to go.
Maybe we will get a win this year. Big horsepower is great if you can hook it to the track. For us the best car is the one who can corner great and get on the gas early. If you can do that you'll look like you have 500 h.p.

pforsythe
Dirt Maniac

Total posts: 133
posted February 13, 2004 07:56 AM  
Open chambered 355 and she makes a whopping 285 horses. LEGAL and can run up front!!!!!

racer17j
Dirt Forum Champ
Total posts: 5390
posted February 14, 2004 11:50 PM  
How many of the engines quoted above have ever been on a Dyno?
I ran a 14 to 1 355ci Chevy with fully p&p'd Bowtie heads 2.08/1.80 intake/exhaust And fully rollered (cam roller bearings/lifters etc.) Belt cam drive, and a Victor Junior intake ported to match the heads and a 950 cfm Bow Laws carb and on the dyno it made 585 at the start.
To get even close to 1 hp per ci you need a healthy engine. I just can't believe they would let it run in any Hobby/Street Stock Class.
What are the motor rules you guys are running???

b4racing
Dirt Forum Champ
Total posts: 626
posted February 17, 2004 12:40 PM  
Mine puts out a whopping 245 at 7800 r's Did I mention it is a 2.3 ford.

Leadfoot#8
Dirt Full Roller

Total posts: 44
posted February 17, 2004 09:30 PM  
Mine will never see 7400==LOLOLOLOLOL

Raz_900
Dirt Forum Champ
Total posts: 635
posted February 18, 2004 12:07 PM  
Considering GM sells crate 350's that make 350 and 385HP with small roller cams, getting 350 HP out of a 10:1 motor with Vortec heads is pretty simple.

I'll hopefully be chassis dynoing mine this year. Gotta get it together first.

Leadfoot#8
Dirt Full Roller

Total posts: 44
posted February 18, 2004 08:31 PM  
I haven't seen a bomber class anywhere allow a Vortec head. They definately will not around here. 4 tracks within 60 miles around here will NOT..

Leadfoot#8
Dirt Full Roller

Total posts: 44
posted February 18, 2004 08:32 PM  
And they sure don't allow ROLLER camshafts.

AXEMAN91D
Dirt Newbie

Total posts: 4
posted February 26, 2004 02:54 PM  
1985 305 TBI HEADS FLOW JUST AS GOOD AS A VORTEC AND CAN NOT BE DETECTED THEY HAVE A SWIRL IN THE INTAKE CHAMBER

sideways
Dirt Forum Champ
Total posts: 715
posted February 26, 2004 06:37 PM  
Vortecs are stock heads our bomber rules say cast iron heads.Well that kinda opens things up.Our basic rules are single line carb. no roller nothing and all cast.Thats about it.So yes big engines real common.

gangster fords
Dirt Roller

Total posts: 13
posted March 01, 2004 11:51 PM  
i dont mean to sound negitive her guys but horsepower is someting that can be easly over rated. if you go back to a 60's motors manual they underrated horsepower to please the government...... 1 per cid is a lot and it cost plenty to get it.......not saying it cant be done but ive seen on a dyno a 360 cid injected sprint engine with ascs heads only make 621 and im talking the best money can buy...... dont for get that tork is a very very overlooked subject in dirt racing.if it dont pull what is horsepower?

Raz_900
Dirt Forum Champ
Total posts: 635
posted March 02, 2004 09:28 AM  
"Torque wins races, HP sells motors."

"You buy HP. You drive torque."


Leadfoot#8
Dirt Full Roller

Total posts: 44
posted March 03, 2004 05:24 PM  
All of the tracks around here say no Vortec heads of any kind

bigcityracer
Dirt Freak

Total posts: 431
posted March 07, 2004 06:35 PM  
quote:
Originally posted by gangster fords:
i dont mean to sound negitive her guys but horsepower is someting that can be easly over rated. if you go back to a 60's motors manual they underrated horsepower to please the government...... 1 per cid is a lot and it cost plenty to get it.......not saying it cant be done but ive seen on a dyno a 360 cid injected sprint engine with ascs heads only make 621 and im talking the best money can buy...... dont for get that tork is a very very overlooked subject in dirt racing.if it dont pull what is horsepower?

In the 60's and before horsepower was rated at the rear wheels. In 1970 and later they rate them at the rear wheels with all accesories on.

I miss stated that up to 1970 horse power was measured at the flywheel and after at the rear wheels with all accessories on.
Sorry for the confussion.

[This message has been edited by bigcityracer (edited March 09, 2004).]

DSMFANATIC
Dirt Forum Racer

Total posts: 90
posted March 08, 2004 05:23 PM  
I thought in the 60's they rated hp at the flywheel, cause it's kind of wierd that accesories would rob over 100 horse in a year,(69 to 70)???

bigcityracer
Dirt Freak

Total posts: 431
posted March 09, 2004 04:19 PM  
quote:
Originally posted by DSMFANATIC:
I thought in the 60's they rated hp at the flywheel, cause it's kind of wierd that accesories would rob over 100 horse in a year,(69 to 70)???

Thanks for noticing the mistake. If you look back at my first post a correction has been made.


longracing25
Dirt Freak

Total posts: 217
posted March 09, 2004 07:09 PM  
Must have pretty wide tires to get that power to dirt!...lol...I have seen alot of under powered cars beat the "stump puller" strokers...because they had great set-ups and gears. That's why i spent more money building my chassis than most. Alot of parts from afco make a differance..lol.

DSMFANATIC
Dirt Forum Racer

Total posts: 90
posted March 10, 2004 05:05 PM  
NO PROBLEM BIGCITYRACER I HOPE I DID'T SOUND LIKE TO MUCH OF A DINK!!!!

------------------
SPEND YOUR MONEY ON WOMEN,BOOZE,AND RACE CARS. THEN JUST WASTE THE REST.

bigcityracer
Dirt Freak

Total posts: 431
posted March 10, 2004 09:15 PM  
DMSFANTASTIC
No offence taken.

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