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View Full Version : put my quad on a dyno again



TrX465
02-18-2002, 09:40 PM
this time i was in the dunes ....it said i put 30 hp :D yeaa um right and they said a stock 400ex put 26 so i was close ....i laughed it was funny but then we went to oldsmobile and comp...and i didnt lose to one 4-stroke in the dunes....oh and they told me raptors put 60lbs of torque so beware ....:devil


oh and by the way on a dyno localy i put 61hp *look at the mods*

JustRace
02-18-2002, 09:46 PM
I have a question... I know what port and polish is but what is "ported and polished with a flow meter?" What is the flow meter?

TrX465
02-18-2002, 09:53 PM
flow meter measures how fast the air is traveling threw your motors and they get it just right for it flows smoothly, i dont really know though my dads like "do this "so he had it done ...they did some swirl crap which helps the air and fuel mix better.... my dads friend owns a shop and he has a flow meter in which he does raptors and such, so i got it done for free...

thorspapa
02-18-2002, 09:59 PM
Most shops that do porting will do the cutting and polishing (and sometimes the building up with epoxy to achieve a desired shape) by using formulas and/or what is known to work.

This doesn't ALWAYS achieve maximum results.

Some shops/tuners use a flow bench, and in it's various forms, it's just a way to flow air from one end to the other of the head, ports, whatever, and measure the amount and velocity.

You KNOW when you're getting it right, because you get better flow/higher velocity. If you go too far, the flow/velocity drops.

Almost foolproof, and very efficient. It sometimes blows math formulas and "known to work" methods right out the window. Not all cylinder ports or heads respond the same to a port job, there's always some slight differences. A flow bench makes sure you get as close to what you want as it's practical to do.

The kicker is it won't make an incompetent tuner into a good one, but it can help a good tuner do a more precise job.

TrX465
02-18-2002, 10:03 PM
but beware with my mods you only make 4 hp:D

kc 300EX
02-19-2002, 01:39 PM
hmmm, they musta only measured the hp from one wheel, so they only got half......

Blysster
02-19-2002, 01:55 PM
Yo TrX465,

Do you have any pictures of that beast ? Sounds like my dream quad

stevengates45
02-19-2002, 03:37 PM
My friends alky banshee was put on the dyno about 2 or 3 weeks ago & it got 120 horses! It doesnt have NOS on it either, sure is fast tho, runs 4.0s & 3.9s in 300ft

max400EX
02-19-2002, 09:54 PM
120HP... I'm finding that hard to believe. How much does he have into this thing?

Chef
02-19-2002, 09:59 PM
120 isnt that hard to believe...I got a buddy with a 440 long rod alky banshee that's relatively high compression that made like 95 on a dyno in glamis...

TrX465
02-19-2002, 11:08 PM
it isnt that hard to believe at all man they have banshees with snow mobile cylinder heads so anything is possible

max400EX
02-19-2002, 11:34 PM
Dang, that must be a wild ride then.. i bet it take more then just a few mods and bein on alky like that 300EX guy made it seem like.

Scott
02-20-2002, 06:33 AM
My 92 S-10 is a 2.8L V-6 and it's only rated at 120hp. Not saying it's impossible to do with 350cc's, but I'd have to see it to believe it. But then again, I wouldn't believe a 95 hp 440 either. The first tubo 400 was around 60 hp, and the turbo banshee was like 75 hp. Would the cylinder walls even handle the kind of pressure you would have to have to make 95 hp with ONE cylinder??? I doubt it. Or the crank, or the case halves, or the bearings and gaskets, or the head bolts...

Guess I'm just a non-believer...

100hp from a quad would be like 400hp from my S-10. And there's no way that engine would handle that.

Just my opinion.

patrick delao
02-20-2002, 06:58 AM
My friend has a 95 S-10 with a 4.3 V6 and its blown and NOS with a blue printed motor and its over 400hp so anything is possible with the right amount of money. :)

Scott
02-20-2002, 07:22 AM
Yeah, I could see it with a 4.3, you can get a factory 4.3 rated over 200 hp. It's a much better engine than the 2.8L. Try the blower and nitrous on a 2.8 and you're probably gonna need a bucket and broom to pick up all the parts off the ground when the engine scatters. It's reliable (I have over 160k miles on mine) but it's not going to handle being built up.

But then again, like you said, anything is possible with enough money...

02-20-2002, 08:27 AM
Did you guys read the latest letters in dirtwheels,,that fella's got a streetbike motor in his,,heck I can't remember,,but it puts out 310 hp,,and runs a 300 foot drag in like 3.1 sec.....that's pretty fast.

Scott
02-20-2002, 08:32 AM
Hey Rico, you ever see those little mini-bikes with the 5hp Briggs engines on them? I saw one at a car show that had been slightly modded, had a Honda CB750 streetbike engine in it. Can you imagine trying to ride that thing? 750cc's and wheels that are what, 6" in diameter??? The rear sprocket was about 1/4" smaller than the tire.

Gas tank said "Brake when you see Jesus." Umm, that would be what, 3rd gear?

stevengates45
02-20-2002, 07:22 PM
Originally posted by Rico
Did you guys read the latest letters in dirtwheels,,that fella's got a streetbike motor in his,,heck I can't remember,,but it puts out 310 hp,,and runs a 300 foot drag in like 3.1 sec.....that's pretty fast.

3.1 in 300ft is very very very fast!!!!:D

stevengates45
02-20-2002, 07:26 PM
Originally posted by Scott
My 92 S-10 is a 2.8L V-6 and it's only rated at 120hp. Not saying it's impossible to do with 350cc's, but I'd have to see it to believe it. But then again, I wouldn't believe a 95 hp 440 either. The first tubo 400 was around 60 hp, and the turbo banshee was like 75 hp. Would the cylinder walls even handle the kind of pressure you would have to have to make 95 hp with ONE cylinder??? I doubt it. Or the crank, or the case halves, or the bearings and gaskets, or the head bolts...

Guess I'm just a non-believer...

100hp from a quad would be like 400hp from my S-10. And there's no way that engine would handle that.

Just my opinion.

stevengates45
02-20-2002, 07:33 PM
Originally posted by Scott
My 92 S-10 is a 2.8L V-6 and it's only rated at 120hp. Not saying it's impossible to do with 350cc's, but I'd have to see it to believe it. But then again, I wouldn't believe a 95 hp 440 either. The first tubo 400 was around 60 hp, and the turbo banshee was like 75 hp. Would the cylinder walls even handle the kind of pressure you would have to have to make 95 hp with ONE cylinder??? I doubt it. Or the crank, or the case halves, or the bearings and gaskets, or the head bolts...

Guess I'm just a non-believer...

100hp from a quad would be like 400hp from my S-10. And there's no way that engine would handle that.

Just my opinion.

You've just seen it!!:D I got a video, but need to find somewhere to put it at cause its too big to be uploaded.

02-20-2002, 08:00 PM
1989 lt 500, +6 swingarm,GSXR1100 motor...10.5 sec. Qtr. Mile time http://www.eastcoastatv.com/gibsonlt500/gibsonlt50005.jpg

stevengates45
02-20-2002, 08:19 PM
Oh yea, today I got offered a +6 swingarm for my stock swing arm. Yall think i should trade? I was thinkin tho, +6 is awful long. Thats what alot of these super mod banshees have on theirs