GS Storm RTR engine

[cvec7]

Anyone know the specs of the GS 21B-01P engine that comes w/ the Storm RTR???

[kwong2001]

It's that the same engine as in the HPI savage 21? The 21BB?

[Kuma]

I don't think they're the same, I had one in my Ultra MBX and it was an awesome torque motor, I've read somewhere it has 2.2hp, but has a rather low rev (~30,000 rpm) and is quite reliable and ran an average 220-240F but can handle up to 270F. I especially like the tall cooling head, not very common to find among RTR motors except the Hyper 21 8P.

[DhiDoug]

I have the same car, and I'm impressed with the motor. I don't know any specs, but it does run well. Everyone I've talked with says to run it fairly hot, but it does have a lot of snort. People I've talked with said to run it at about 270, and others said about 240-250. I just run it to the point where it sounds good. I'm thinking that it wouldn't be a big deal to replace the sleeve and piston if I have any problems. Let me know if you need any tuning help!

[alkyula]

ive read somewhere that it is the same mill as the XTM .21 pro, not the new pro ver 2.1 but the older .21 buggy mill xtm had. that one had a claimed 2.4 hp, while people have said it was a very strong mill i doubt it has any were near that much real HP. is that jsut a rumor or can anyone back me up on wether the storms RTR .21 mill is made by same i believe it was japanese company that makes/made xtm's mills?

[SilentGTboy]

I thought I read it was 2.3 HP

[cvec7]

Anyone know how many gallons I can expect to get through the engine also?? (b4 replacing piston/sleeve)

[HumboldtBlazer]

you will find claimed HP is a funny thing. It makes you wonder why all the top engine manufacture will not post these results but all the more affordable engine boast cliamed hp like it is going out of style. To many variable with the way people "rate
" the hp or "dyno" the engines. There is no set of industry standards and guidlines on doing this so they don't bother.

Originally posted by cvec7
Anyone know how many gallons I can expect to get through the engine also?? (b4 replacing piston/sleeve)

All engines are different. If you take great care of it and always maintian it anywhere from 3-6 gallons in normal. You will always have the guy the got 10 gallons on an engine but I run a little leaner than that. I know racers that change the piston sleeve after a gallon to gallon and a half. I don't do that as I feel that's when it was broken in. I expect about 3 gallons out of my racing engines before I would want to change the piston/sleeve. If every bit of power doesnt matter than I would expect 6 gallons "playing around" Everyone is different.

[Roadrash13]

GS engines are made by SH, The Storm RTR's eng. was rated at 2.4hp.

Steve

[cvec7]

Thanks, do you know the website to SH?

[alkyula]

hmm i guess i read right about the XTM .21 pro being the same engine as the RTR storms .21 engine. heres the website

http://www.shengines.com/_private/Engines/sh_engine.htm

i think the storms mill is PT002B