R/C Tech Forums

R/C Tech Forums (https://www.rctech.net/forum/)
-   Offroad Nitro Engine Forum (https://www.rctech.net/forum/offroad-nitro-engine-forum-157/)
-   -   Houstons Engine Service H.E.S. (https://www.rctech.net/forum/offroad-nitro-engine-forum/285444-houstons-engine-service-h-e-s.html)

houston 05-15-2009 09:40 AM


Originally Posted by losi_racer (Post 5815296)
you did. and i was going to do that. he just provided an explanation lol. like i said thanks ill reintroduce my self when u come for nitrocross

isn't there a nitro cross in october or september ? i swear that is what ross was telling me . i see this flyer that has an arizona state nitrocross coming up real soon ???:weird: a little confused .

houston 05-15-2009 12:51 PM

i gotta sell some stuff .

check out the for sale items i got posted up .

losi_racer 05-15-2009 03:04 PM


Originally Posted by houston (Post 5816487)
isn't there a nitro cross in october or september ? i swear that is what ross was telling me . i see this flyer that has an arizona state nitrocross coming up real soon ???:weird: a little confused .

not that i know of. its may 30

houston 05-15-2009 03:11 PM


Originally Posted by losi_racer (Post 5817337)
not that i know of. its may 30

i talked to stav and i am coming down for the finals in october ;)

losi_racer 05-15-2009 03:31 PM


Originally Posted by houston (Post 5817365)
i talked to stav and i am coming down for the finals in october ;)

cool. i was hopin you be done but o well.

Allumina 05-15-2009 11:31 PM

Got my Toro Nero back from Monty today..had him break it in for me.

all I can say is wow guys, you just cant go wrong with Nova mills and Montys service -second to none.

and boy is that toro a rocket ship... totally insane






did I mention 10+ min tanks?

houston 05-15-2009 11:39 PM

:nod::D

roadracer43 05-16-2009 07:59 AM

Houston/Monty,

My fuel inlet on my hsn is turned in a way that my fuel line is kinda kinked do to its position. The carb is turned as much as it can be. Its angled to the inside and away from the tank. Is there a way to turn the hsn any so it will face the other way ? Im thinking of sending it to you for a mod job but its only got 1 gallon on it. Should I wait until about 4 gallons so you can change the bearings/rod if need be ? I would rather someone with experience turn the hsn if it can be. Can you do this also ?

houston 05-16-2009 10:38 AM


Originally Posted by roadracer43 (Post 5819577)
Houston/Monty,

My fuel inlet on my hsn is turned in a way that my fuel line is kinda kinked do to its position. The carb is turned as much as it can be. Its angled to the inside and away from the tank. Is there a way to turn the hsn any so it will face the other way ? Im thinking of sending it to you for a mod job but its only got 1 gallon on it. Should I wait until about 4 gallons so you can change the bearings/rod if need be ? I would rather someone with experience turn the hsn if it can be. Can you do this also ?

turning the fuel inlet banjo is fairly simple . use a 9/32 end wrench to loosen the hsn 'til it is just loose , rotate to desired position and retighten . do not overtighten but make sure it is snug . i dont recommend using pliers but it ups to you if you want your carb to be all scarred up :cool:

hope this helps ,
monty


just lmk when you need it done .

roadracer43 05-16-2009 04:15 PM

Thanks Monty. I have the 9/32 so I will give it a whirl. Just didnt want to try it without asking. You have been a great help with all the questions Ive asked. Thats good business for sure and I will be sending you this engine after I can buy another one. Most likely from you. I would like a plus 4 to have in the future. I just need to figure out this tuning thing first. Thats why I bought the cheaper 3 port first.

roadracer43 05-16-2009 04:59 PM

Didnt have the 9/32 as I thought but had the 7mm which worked the same. Just turned it to right where it needs to be. Simple enough. Thanks !!

houston 05-16-2009 07:56 PM


Originally Posted by roadracer43 (Post 5820717)
Didnt have the 9/32 as I thought but had the 7mm which worked the same. Just turned it to right where it needs to be. Simple enough. Thanks !!

no prob :cool:

maxflo777 05-16-2009 08:47 PM


Originally Posted by houston (Post 5812247)
i am glad it is weorking out for you , if you properly shim for 20% (.60mm) then you will experience better performance but you will be better off to use 30% and properly shim for that .

to each his own ;)

Can I ask why again? what does displacement has to do with nitro %? and why .60 for 20%? The more compresion you can obtain without detonation the better. Power is proportional to compression. I'm not trying to be a wise guy, I just want to understand the reason you say low compression is better. And high nitro is more power but also more fuel consuption, stress, wear, etc.

X

houston 05-16-2009 09:58 PM


Originally Posted by maxflo777 (Post 5821326)
Can I ask why again? what does displacement has to do with nitro %? and why .60 for 20%? The more compresion you can obtain without detonation the better. Power is proportional to compression. I'm not trying to be a wise guy, I just want to understand the reason you say low compression is better. And high nitro is more power but also more fuel consuption, stress, wear, etc.

X

compression is a factor of the power until it becomes redundant and turns to pre ignition in the cylinder . these little nitro engines do run on compression strokes to ignite the fuel very similar to a diesel , the fuel is really not much more flammable than diesel until you seperate the components (diesel needs aeration (turbo)). combustion chamber volume needs to be matched to the amount of flammable material in a fuel 30% nitro = .80mm shims , 25% = .70mm, 20% = .60mm or there abouts(in novarossi engines) . the methanol mixed with the fuel burns very very cool and is really used as a filler ingredient in the fuel mixture . the lower oil content will use methanol to fill the fuel mixture equation up and produce lower running temps but also more chance for over lean conditions .

bottom line , you will know when your engine is happy :nod: you will be able to use the same plug for a gallon or so and it will be clean burning creating little or no carbon build up on the exhaust components and piston .

it will make great power while running cool temps (under 300)

















j/k :lol:240 or so


am i done yet ????

houston 05-16-2009 10:02 PM


Originally Posted by maxflo777 (Post 5821326)
Can I ask why again? what does displacement has to do with nitro %? and why .60 for 20%? The more compresion you can obtain without detonation the better. Power is proportional to compression. I'm not trying to be a wise guy, I just want to understand the reason you say low compression is better. And high nitro is more power but also more fuel consuption, stress, wear, etc.

X

:sweat:


i would like to give a personal thanks to everybody who is supporting H.E.S. in supporting you guys . i try to provide a sense of ease to your nitro runnings and give all the help and support i possibly can . if you are a customer of H.E.S. you know what i mean;)

thanks a bunch and happy motorin',
monty


All times are GMT -7. It is currently 02:09 PM.

Powered By: vBulletin v3.9.3.9 Patch Level 3
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.