Dyno graph pic

What does that mean? /\ /\ /\
B]

No offence meant, but Blaster projects are only resonable if they are affordible. So when we decided to use a larger carb, we went to the old/low value/parts carb container. There benieth the spider-webs, and spiders, we found one of our old 34pj carbs (stock carb for Honda trx250r) that was complete. It is working great, and you can get one off ebay, and not break the bank. :)
 
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We took a vid of the pump-gas blaster racing an lt500. This vid was with the fat guy on the blaster...lol
 
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We did trade riders and race also, but it was ugly for the Quadzilla 500. And might seen hard for most people to swallow. So we posted this vid with the blaster at a huge weight handicap, so that the race was close. With the riders switched, the Blaster wins by 3+ bike-lengths. We will be testing again soon on another pipe that makes some more torque, but the clutch has been giving us trouble as we are approaching 25 ft lbs of torque. :(
 
somewhere on here is a list of atv power to weight ratios,
wish i could find it ???
the Quadzilla 500 was at the top of that list, the stock blaster was way down the list.
i redid the math and punched in a reasonable 35 horsepower to the blasters 300ish Lb. weight, it quickly moved the blaster into second place, still behind the LT500,
had i done that math with a 40+ or even 50 hp. and the blaster may have moved into first place ?

never under estimate these light little machines !
 
somewhere on here is a list of atv power to weight ratios,
wish i could find it ???
the Quadzilla 500 was at the top of that list, the stock blaster was way down the list.
i redid the math and punched in a reasonable 35 horsepower to the blasters 300ish Lb. weight, it quickly moved the blaster into second place, still behind the LT500,
had i done that math with a 40+ or even 50 hp. and the blaster may have moved into first place ?

never under estimate these light little machines !

I found this on E2S.
1. Suzuki Quadzilla LT500 ---------> 51srwhp / 390lbs = 0.1308 horsepower per pound
2. Cannondale Cannibal -------------> 38srwhp / 375lbs = 0.1013 horsepower per pound
3. Yamaha Banshee ------------------> 37srwhp / 386lbs = 0.0959 horsepower per pound
4. Suzuki QuadRacer 250R --------> 31srwhp / 327lbs = 0.0948 horsepower per pound
5. Kawasaki Tecate 4 ----------------> 33srwhp / 339lbs = 0.0944 horsepower per pound
6. Honda 250R --------------------------> 31srwhp / 329lbs = 0.0942 horsepower per pound
7. Yamaha Raptor 660R -------------> 35srwhp / 399lbs = 0.0877 horsepower per pound
8. Suzuki Z400 / Kawasaki X400 -> 32srwhp / 370lbs = 0.0865 horsepower per pound
9. Bombardier DS650 BAJA --------> 39srwhp / 475lbs = 0.0821 horsepower per pound
10. Honda 400EX -----------------------> 29srwhp / 374lbs = 0.0775 horsepower per pound
11. Polaris Sport 400 ------------------> 34srwhp / 481lbs = 0.0707 horsepower per pound
12. Polaris Scrambler 500 2WD ---> 35srwhp / 523lbs = 0.0669 horsepower per pound
13. Yamaha Blaster --------------------> 20srwhp / 320lbs = 0.0625 horsepower per pound
14. Yamaha Warrior -------------------> 21srwhp / 397lbs = 0.0529 horsepower per pound
15. Honda 300EX -----------------------> 17srwhp / 377lbs = 0.0451 horsepower per pound
16. Kawasaki Mojave -----------------> 17srwhp / 379lbs = 0.0449 horsepower per pound
17. Honda 250X -------------------------> 15srwhp / 351lbs = 0.0427 horsepower per pound
18. Honda 250EX -----------------------> 13srwhp / 349lbs = 0.0372 horsepower per pound
19. Suzuki QuadSport 230 ----------> 11srwhp / 309lbs = 0.0356 horsepower per pound
20. Wal-Mart PowerWheels ---------> 0.5srwhp / 50lbs = 0.0100 horsepower per pound
 
Doug to the rescue !!!!.....................

. stock Suzuki Quadzilla LT500 --------->
51srwhp / 390lbs = 0.1308 horsepower per pound

modded blaster examples...........

aggressive ported stock cylinder ?
35rwhp / 300 lbs = .1166 hp./lb. ratio

ct/la sleeve 240 bbk ?
40rwhp/ 300 lbs. = .1333 hp./lb. ratio

trail and mx track freindly /\/\/\

drag/dune only IMO...\/\/\/\/

41 hp stock cylinder w/ huge exhaust timing/ lightswitch top end power ?
41rwhp/300 = .136 hp./lb. ratio

highly ported drag/dune 240 bbk cylinder ?
50rwhp/ 300 lbs. = .1666 hp./lb. ratio

full drag 240 bbk in drag blaster frame ?
60rwhp/ 250 lbs. = .24 hp./lb. ratio
 
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I found this on E2S.
1. Suzuki Quadzilla LT500 ---------> 51srwhp / 390lbs = 0.1308 horsepower per pound
2. Cannondale Cannibal -------------> 38srwhp / 375lbs = 0.1013 horsepower per pound
3. Yamaha Banshee ------------------> 37srwhp / 386lbs = 0.0959 horsepower per pound
4. Suzuki QuadRacer 250R --------> 31srwhp / 327lbs = 0.0948 horsepower per pound
5. Kawasaki Tecate 4 ----------------> 33srwhp / 339lbs = 0.0944 horsepower per pound
6. Honda 250R --------------------------> 31srwhp / 329lbs = 0.0942 horsepower per pound
7. Yamaha Raptor 660R -------------> 35srwhp / 399lbs = 0.0877 horsepower per pound
8. Suzuki Z400 / Kawasaki X400 -> 32srwhp / 370lbs = 0.0865 horsepower per pound
9. Bombardier DS650 BAJA --------> 39srwhp / 475lbs = 0.0821 horsepower per pound
10. Honda 400EX -----------------------> 29srwhp / 374lbs = 0.0775 horsepower per pound
11. Polaris Sport 400 ------------------> 34srwhp / 481lbs = 0.0707 horsepower per pound
12. Polaris Scrambler 500 2WD ---> 35srwhp / 523lbs = 0.0669 horsepower per pound
13. Yamaha Blaster --------------------> 20srwhp / 320lbs = 0.0625 horsepower per pound
14. Yamaha Warrior -------------------> 21srwhp / 397lbs = 0.0529 horsepower per pound
15. Honda 300EX -----------------------> 17srwhp / 377lbs = 0.0451 horsepower per pound
16. Kawasaki Mojave -----------------> 17srwhp / 379lbs = 0.0449 horsepower per pound
17. Honda 250X -------------------------> 15srwhp / 351lbs = 0.0427 horsepower per pound
18. Honda 250EX -----------------------> 13srwhp / 349lbs = 0.0372 horsepower per pound
19. Suzuki QuadSport 230 ----------> 11srwhp / 309lbs = 0.0356 horsepower per pound
20. Wal-Mart PowerWheels ---------> 0.5srwhp / 50lbs = 0.0100 horsepower per pound

Man that power wheels must have some porting done! I:I
 
I found this on E2S.
1. Suzuki Quadzilla LT500 ---------> 51srwhp / 390lbs = 0.1308 horsepower per pound
2. Cannondale Cannibal -------------> 38srwhp / 375lbs = 0.1013 horsepower per pound
3. Yamaha Banshee ------------------> 37srwhp / 386lbs = 0.0959 horsepower per pound
4. Suzuki QuadRacer 250R --------> 31srwhp / 327lbs = 0.0948 horsepower per pound
5. Kawasaki Tecate 4 ----------------> 33srwhp / 339lbs = 0.0944 horsepower per pound
6. Honda 250R --------------------------> 31srwhp / 329lbs = 0.0942 horsepower per pound
7. Yamaha Raptor 660R -------------> 35srwhp / 399lbs = 0.0877 horsepower per pound
8. Suzuki Z400 / Kawasaki X400 -> 32srwhp / 370lbs = 0.0865 horsepower per pound
9. Bombardier DS650 BAJA --------> 39srwhp / 475lbs = 0.0821 horsepower per pound
10. Honda 400EX -----------------------> 29srwhp / 374lbs = 0.0775 horsepower per pound
11. Polaris Sport 400 ------------------> 34srwhp / 481lbs = 0.0707 horsepower per pound
12. Polaris Scrambler 500 2WD ---> 35srwhp / 523lbs = 0.0669 horsepower per pound
13. Yamaha Blaster --------------------> 20srwhp / 320lbs = 0.0625 horsepower per pound
14. Yamaha Warrior -------------------> 21srwhp / 397lbs = 0.0529 horsepower per pound
15. Honda 300EX -----------------------> 17srwhp / 377lbs = 0.0451 horsepower per pound
16. Kawasaki Mojave -----------------> 17srwhp / 379lbs = 0.0449 horsepower per pound
17. Honda 250X -------------------------> 15srwhp / 351lbs = 0.0427 horsepower per pound
18. Honda 250EX -----------------------> 13srwhp / 349lbs = 0.0372 horsepower per pound
19. Suzuki QuadSport 230 ----------> 11srwhp / 309lbs = 0.0356 horsepower per pound
20. Wal-Mart PowerWheels ---------> 0.5srwhp / 50lbs = 0.0100 horsepower per pound

This is a great chart, only you have to put a 200lbs (average guy in gear) rider on the quad for a realistic hp/wt. The Blaster unfortunately moves down the list a bit then.

Steve
 
This is a great chart, only you have to put a 200lbs (average guy in gear) rider on the quad for a realistic hp/wt. The Blaster unfortunately moves down the list a bit then.

Steve
new to the forum but i figured id give my 2cents. That must be a pretty old rating chart the 450s that are out now have to be above the lt500 by now. i had an 08 ktm 450 xc and i know that would have smoked all of those stock vs stock, but in all great thread keep em coming
 
new to the forum but i figured id give my 2cents. That must be a pretty old rating chart the 450s that are out now have to be above the lt500 by now. i had an 08 ktm 450 xc and i know that would have smoked all of those stock vs stock, but in all great thread keep em coming
Somebody had to say it but I didn't want to be the one to kick the hornets nest. A solid KTM will sh*t on a "quadzilla", especially in the torque ratings. If you can handle that big price tag you will be so much faster than that old dinosaur it's not even funny.
Edit: I am still interested in maximizing a certain power to weight ratio or else I wouldn't be here.
 
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The Chart posted is about 15 percent higher than the numbers our dyno reads. We see 16hp Blasters, 33hp banshee, 25hp ex400, 42hplt500, 27hP 250r, 36-38hp 450s,
I'd like to take one of our boosters to that dyno...lol

Joeak's skepticism is not surprising. But i can only do so much to prove it. Pictures, vids,...? Lol Where are you at in northern Nevada?
 
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Before we bow to any of the 4-chokes, let me say that most all of the late 80s designed 2-stroke motors are capable of double the stock power without increasing the displacement. The lt 500 is a challenge but to gain 30HP is possible, and still maintain good mid range power.
And if we increase the displacement, we have made 4 times the stock HP, on some quads, with cp ind. aftermarket cylinders, and stroker cranks.
But to talk about other setups that we do would be even more unbelievable to a skeptic.lol
 
So Nate, are you planning on producing these pipes at the very least ?

your saying these pipes are for aggressively ported blasters, with a nice sized carb.

What about your pipes gives them the ability to produce more power then say a toomey pipe or a trinity pipe ?

Also im curious as to what you feel your guys are doing diffrently or better then other builders to obtain ported 240 numbers from a ported stock stroke and bore motor.

stratton.
 
when I ordered my lockup from GPengineering on my 250r build he said that matt shearer and calvin (i assume form cpi) had been working on a custom tuned pipe for a big sabre 250r and then he said McCoy claimed he had a pipe that would put out 10hp more than theirs.....He said it did exactly as he was told on the dyno!!!! IDK what he's doing but I was advised to get ahold of him for custom pipes.....

I wonder what the damage would be on a Blaster pipe? And one for a 401 rotax honda hybrid ?
 
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We can do custom pipes for anything, of course. But it's not always very practical. In most cases, we work with Jaws, or Shearer to modify/use an existing stamping for cost, and practicality. And in every case, the motor setup must be geared to the pipe. Obviously a better pipe might still outperform other common pipes even on a generically setup motor, but nothing is optimized in that case.
STRATTON, yes our pipe makes more power then the pipes you mentioned, on a good engine combo.
N.N.BLASTY, I could comment on your 250r project here if you'd like, or in the other thread...
Rubbersalt, the Tecate can be made very powerful. We prefer the 87up style motor, and have made 72hp on gas, with stk carb, ignition, and bottom end, and stk cylinder, with a bb sleeve. (Kind of embarrassing for the Honda,lol) That was about 10 years ago. I still have a couple Tecate 4s. I kinda like 'em. :)