Rat
Well-known member
If you search eBay for 1.5" stainless tube, they have some extremely nice preformed sections, but it would be a shame if they were used by someone that welds sloppy
supercharger
- Thread starter A Manco Dingo
- Start date
Thepartsguy
Well-known member
- Messages
- 1,136
- Reaction score
- 886
The world doesn’t produce sub 1 liter huffers anymore and that makes me sad
Denny
Canned Monster
Yes they do. They’re about $300 bucks brand new. Bob is about to be the first Guinny Pig!
A Manco Dingo
Member
what supercharger is that?
A Manco Dingo
Member
also i have seen other people do it is it possible to make a nitromethane predator 212 S
stock predator on NITRO!!! - YouTube
stock predator on NITRO!!! - YouTube
Thepartsguy
Well-known member
- Messages
- 1,136
- Reaction score
- 886
I do not know I cannot find any info all I do no is the web sight said sub 1 liter supercharger.
Thepartsguy
Well-known member
- Messages
- 1,136
- Reaction score
- 886
Methanol is very very common in kart racing
Denny
Canned Monster
AMR 300. 300cc per revolution.
Thepartsguy
Well-known member
- Messages
- 1,136
- Reaction score
- 886
I’m using a smog pump and just need a new pwk24 and a belt. If it works I plan to replace the v-belt setup with a cog belt setup.
Denny
Canned Monster
Just don’t try to make more than 5psi. The vanes won’t like it. Bad things will happen.
Thepartsguy
Well-known member
- Messages
- 1,136
- Reaction score
- 886
They make 5 psi from the factory YouTube videos of mgb smog pump tests show 3-5psi depending on the condition of the pump.
I would be extremely happy if it made even 3 pounds. I have a gauge I’ll mount.
bob58o
SuckSqueezeBangBlow
There’s a few videos with the amr 300 / 500.
Red beard has one. He made more boost than I expected with his pulley set up on a 440cc.
I probably did some math at the time and did not expect 15lb on a 440 with a 300cc blowet
I don’t remember his pulley ratio but I expected 1:1 ratio with 300cc blower on 440cc 4stroke about 5 psi of boost.
440 cc / 2 crank rev
220 cc / 1 crank rev
300 cc / 1 blower rev
300 / 220 = 1.36
1.36 * 14.7 psi = 20 psi (absolute)
20-14.7 = 5.3 psi of boost
perhaps intake temps became high, increasing pressure.
Pressure x Volume
is proportional to
(#of of molecules) x (Temperature)
Pressure can increase by increasing temps without stuffing any more air in a fixed volume.
Hotter Air instead of dense air, I propose, will give a higher boost reading with worse performance.
Robot Cantina has used one or two.
Red beard has one. He made more boost than I expected with his pulley set up on a 440cc.
I probably did some math at the time and did not expect 15lb on a 440 with a 300cc blowet
I don’t remember his pulley ratio but I expected 1:1 ratio with 300cc blower on 440cc 4stroke about 5 psi of boost.
440 cc / 2 crank rev
220 cc / 1 crank rev
300 cc / 1 blower rev
300 / 220 = 1.36
1.36 * 14.7 psi = 20 psi (absolute)
20-14.7 = 5.3 psi of boost
perhaps intake temps became high, increasing pressure.
Pressure x Volume
is proportional to
(#of of molecules) x (Temperature)
Pressure can increase by increasing temps without stuffing any more air in a fixed volume.
Hotter Air instead of dense air, I propose, will give a higher boost reading with worse performance.
Robot Cantina has used one or two.
Last edited:
bob58o
SuckSqueezeBangBlow
Nah, he hit the intake with the temp gun and it was much lower than I thought.
Trash my previous proposal.
Trash my previous proposal.
A Manco Dingo
Member
question could I do a 90% nitromethane and a 10% methanol engine?
bob58o
SuckSqueezeBangBlow
Why?
A Manco Dingo
Member
The real questions is why not
bob58o
SuckSqueezeBangBlow
Because top fuel is expensive.
I tried to run an engine on RC nitro fuel.
Probably like 25% Nitromethane 10% Oil 65% Methanol.
I never got the carb tuned. Hillbilly suggested I drill out my jets as fat as possible. I gave up on the nitro pretty quick.
That being said. I plan to use E/85 for my blown engine. 10.5 :1 static compression plus what ever the blower pumps.
I tried to run an engine on RC nitro fuel.
Probably like 25% Nitromethane 10% Oil 65% Methanol.
I never got the carb tuned. Hillbilly suggested I drill out my jets as fat as possible. I gave up on the nitro pretty quick.
That being said. I plan to use E/85 for my blown engine. 10.5 :1 static compression plus what ever the blower pumps.
A Manco Dingo
Member
i have seen it done but it takes time to tune it i have some buddy's that work at a nice tuning shop and they focus more on ATV side by sides and go kart so they are great with this stuff they even have a ATV dyno that i could dyno my go kart on it
one more thing you know you can mix your own fuel just nitro and methanol you can buy both on amazon
one more thing you know you can mix your own fuel just nitro and methanol you can buy both on amazon
A Manco Dingo
Member
nitro requires less air but if you drill out your jet you will need a bigger carb. Typicaly 28 to 32 mm
Thepartsguy
Well-known member
- Messages
- 1,136
- Reaction score
- 886
It does not need to be over complicated. you can read one very simple book (Building a flathead by jimmy glenn) and it explains how to convert an engine much much older then the one your working with to methanol.
I’m sure if you looked at what jets you need for a mikuni or stock carburetor it couldn’t be that tough. You never told us if you got a flywheel. Your talking about mods wayyy bigger then just deleting the governor... We have told you the gov delete is #1 cause of overrev flywheel explosions right?
I’m sure if you looked at what jets you need for a mikuni or stock carburetor it couldn’t be that tough. You never told us if you got a flywheel. Your talking about mods wayyy bigger then just deleting the governor... We have told you the gov delete is #1 cause of overrev flywheel explosions right?