R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road

Reply
 
Thread Tools Search this Thread
Old 07-10-2010, 09:09 AM   #3976
Tech Initiate
 
BigMiles's Avatar
 
Join Date: May 2010
Posts: 49
Default

Quote:
Originally Posted by williamw View Post
My GT electric car is based on an MP777, my GT2 is based on an ST-R chassis, 777 based. Everything important from the 7.5 based cars fits. To run either with a two speed will require some machining to make room for gear clearance. On my GT2 I also needed to move the tank forward for clutch bell clearance (I'm assuming the same would be required for the shorter chassis). The chassis is made from much better materials along with everything else.

On my Thunder Tiger I used a dremal to sink the center shaft bearings deeper into the housings so I wouldn't have to alter the pan. I shimmed the whole transmission upward 3/16 to provide space fo the 1st gear spur. Then I just got the Associated fuel tank that is taller but not as long to clear the 2-speed clutch bell.
__________________
Miles

MBX5-T/XTM 24.7, TMAXX Classic, Blitz, Rage Brushless
Thunder Tiger EB-4 S2 converted to 1/8 Super GT On Road /Picco .28
It's Alive! It's Alive!
BigMiles is offline   Reply With Quote
Old 07-10-2010, 11:08 AM   #3977
Tech Master
 
bobbyblaze's Avatar
 
Join Date: May 2007
Location: Georgia
Posts: 1,565
Trader Rating: 1 (100%+)
Send a message via Yahoo to bobbyblaze
Default

Quote:
Originally Posted by Jspeed View Post
My "GT Open" car has the Sirio CL7R STI .21 On-Road engine.
Both .28s & .21s seem to have different advantages to them.
At Ipanema Sports GT events, you can use any header/pipe combo you want in our "Open" or "Spec" class.
so some onroad engine work well with the weight of these car because friend of mine have O.S. .21onroad and its not doing the job in his DM-1, my other friend have hyper 9 port not doing the job as well they can't keep up with my GO-7port, i like my GO but i sort of looking at the picco & nova onroad engines...kinda miss the speed of my mrx4x so im looking for opinions thanks
__________________
Arrma Nero 6s, Ofna DM-1 Pro
Traxxas Revo 3.3, Traxxas T-Maxx 3.3, Traxxas Jato 3.3
Traxxas Slash Platinum, Traxxas Slash 2WD
Bend The Rules--Rule The Bends
bobbyblaze is offline   Reply With Quote
Old 07-10-2010, 11:26 AM   #3978
Tech Regular
 
Join Date: May 2010
Posts: 442
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by bobbyblaze View Post
so some onroad engine work well with the weight of these car because friend of mine have O.S. .21onroad and its not doing the job in his DM-1, my other friend have hyper 9 port not doing the job as well they can't keep up with my GO-7port, i like my GO but i sort of looking at the picco & nova onroad engines...kinda miss the speed of my mrx4x so im looking for opinions thanks
The DM 1 is probably a pound or more heavier than the GT2. With a bunch of money it might be possible to cut a half pound off the car. The Ipanema body alone probably weighs a couple of ounces less than the Protoform.

The new OS .25 might be the perfect compromise for the DM 1, then again the guys at Ofna all use P9 or P7 Evo Piccos.
williamw is offline   Reply With Quote
Old 07-10-2010, 02:50 PM   #3979
Tech Master
 
bobbyblaze's Avatar
 
Join Date: May 2007
Location: Georgia
Posts: 1,565
Trader Rating: 1 (100%+)
Send a message via Yahoo to bobbyblaze
Default

Quote:
Originally Posted by williamw View Post
The DM 1 is probably a pound or more heavier than the GT2. With a bunch of money it might be possible to cut a half pound off the car. The Ipanema body alone probably weighs a couple of ounces less than the Protoform.

The new OS .25 might be the perfect compromise for the DM 1, then again the guys at Ofna all use P9 or P7 Evo Piccos.
i thought the DM-1 lighter than the I-GT cars...o.s. not like they use be only thing i like from o.s. is their carbs...i going to give murnan modified or clockwork a holla
__________________
Arrma Nero 6s, Ofna DM-1 Pro
Traxxas Revo 3.3, Traxxas T-Maxx 3.3, Traxxas Jato 3.3
Traxxas Slash Platinum, Traxxas Slash 2WD
Bend The Rules--Rule The Bends
bobbyblaze is offline   Reply With Quote
Old 07-10-2010, 07:54 PM   #3980
Tech Regular
 
mosaics12's Avatar
 
Join Date: Jan 2010
Location: NJ
Posts: 429
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by *1speedy View Post


nice...would try them
__________________
kyosho inferno GT2 pro.. kyosho ultima sc.. HPI savage X.. tamiya m-05 pr
mosaics12 is offline   Reply With Quote
Old 07-10-2010, 08:32 PM   #3981
Tech Regular
 
Join Date: Sep 2004
Posts: 265
Default

Quote:
Originally Posted by bobbyblaze View Post
so some onroad engine work well with the weight of these car because friend of mine have O.S. .21onroad and its not doing the job in his DM-1, my other friend have hyper 9 port not doing the job as well they can't keep up with my GO-7port, i like my GO but i sort of looking at the picco & nova onroad engines...kinda miss the speed of my mrx4x so im looking for opinions thanks
Use the torquey on-road engines like the Nova 35plus or the Flash Special. Also, make sure the gearing is correct. We used 15/19 pinion with 49/45 spurs at Homestead. We chose the 35plus for the GT Worlds. TQ by more than 4 secs and cruised to the victory. Engine performed perfect the whole event.
__________________
Desoto Racing
Novarossi America, Serpent America, TOP Engines, Matrix Racing Tires, ProCircuit, Titan/Blitz Products, Xceed Products, KO Propo, Enneti, ArrowMax

info@desotoracing.com, www.serpentamerica.com
jdesoto is offline   Reply With Quote
Old 07-11-2010, 04:49 AM   #3982
Tech Master
 
kmichael's Avatar
 
Join Date: Mar 2007
Location: land O lakes,Fla.
Posts: 1,702
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by jdesoto View Post
Use the torquey on-road engines like the Nova 35plus or the Flash Special. Also, make sure the gearing is correct. We used 15/19 pinion with 49/45 spurs at Homestead. We chose the 35plus for the GT Worlds. TQ by more than 4 secs and cruised to the victory. Engine performed perfect the whole event.
Very good information thanks,looking to get back into GT racing
kmichael is offline   Reply With Quote
Old 07-11-2010, 05:51 AM   #3983
Tech Elite
 
MugenDrew's Avatar
 
Join Date: Aug 2006
Location: Apollo Beach, Florida
Posts: 2,095
Trader Rating: 29 (100%+)
Default

Quote:
Originally Posted by kmichael View Post
Very good information thanks,looking to get back into GT racing
35+21 TUNED is the best bang for the buck. itll put a big old smile on your face...
__________________
Mugen Seiki Racing Desoto Racing Race AKA Byron Original Fuels Arrowmax Sanwa RC America
MugenDrew is offline   Reply With Quote
Old 07-12-2010, 12:06 AM   #3984
Tech Master
 
FREAKAH's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jan 2002
Posts: 1,389
Default

Does anyone know if 777 components(diff cases, radio tray, center diff mount, etc.) will bolt on a GT2 chassis plate?
__________________
Second-Hand Racing
RACE WORLD HAWAII
Losi Type-R |Tamiya F104 PRO | Tamiya F103 | Mugen MTX-4R | AE FT GT2
FREAKAH is offline   Reply With Quote
Old 07-12-2010, 07:10 AM   #3985
Tech Regular
 
Join Date: May 2010
Posts: 442
Trader Rating: 4 (100%+)
Cool

Quote:
Originally Posted by FREAKAH View Post
Does anyone know if 777 components(diff cases, radio tray, center diff mount, etc.) will bolt on a GT2 chassis plate?
Most plastic parts will work, including the diff cases, bulkheads and center diff mounts, but the radio tray, front support, and steering bell cranks will not work. (some guys use the 777 bell cranks, but I have not tried it. I would use the GT2 stuff).
williamw is offline   Reply With Quote
Old 07-12-2010, 11:37 AM   #3986
Tech Master
 
bobbyblaze's Avatar
 
Join Date: May 2007
Location: Georgia
Posts: 1,565
Trader Rating: 1 (100%+)
Send a message via Yahoo to bobbyblaze
Default

Quote:
Originally Posted by jdesoto View Post
Use the torquey on-road engines like the Nova 35plus or the Flash Special. Also, make sure the gearing is correct. We used 15/19 pinion with 49/45 spurs at Homestead. We chose the 35plus for the GT Worlds. TQ by more than 4 secs and cruised to the victory. Engine performed perfect the whole event.
i like the Flash Special...right now i'm running 48/44 spur & 16/20 pinion ..i was thinking about going to 17/21 just to get alittle more top end speed
__________________
Arrma Nero 6s, Ofna DM-1 Pro
Traxxas Revo 3.3, Traxxas T-Maxx 3.3, Traxxas Jato 3.3
Traxxas Slash Platinum, Traxxas Slash 2WD
Bend The Rules--Rule The Bends
bobbyblaze is offline   Reply With Quote
Old 07-12-2010, 11:41 AM   #3987
Tech Regular
 
Join Date: May 2010
Posts: 442
Trader Rating: 4 (100%+)
Cool

Does it make sense to spend alot more on the engine than the car itself? Just my two cents.
williamw is offline   Reply With Quote
Old 07-12-2010, 01:10 PM   #3988
Tech Initiate
 
BigMiles's Avatar
 
Join Date: May 2010
Posts: 49
Default

I live in Long Beach, CA. I can't believe the closes DM-1 48 tooth spur gear is 40 miles away. OFNA needs to get more distributors in Los Angeles.
__________________
Miles

MBX5-T/XTM 24.7, TMAXX Classic, Blitz, Rage Brushless
Thunder Tiger EB-4 S2 converted to 1/8 Super GT On Road /Picco .28
It's Alive! It's Alive!
BigMiles is offline   Reply With Quote
Old 07-12-2010, 01:20 PM   #3989
Tech Adept
 
Join Date: Feb 2010
Posts: 246
Trader Rating: 9 (100%+)
Default

Finally!! New upgraded GT2 2-speed evolva based tranny in hand. Installing tonight. First impression tomorrow.
Ferenczy36 is offline   Reply With Quote
Old 07-12-2010, 02:30 PM   #3990
Tech Elite
 
Jspeed's Avatar
 
Join Date: Oct 2006
Location: America!
Posts: 3,513
Default

Quote:
Originally Posted by FREAKAH View Post
Does anyone know if 777 components(diff cases, radio tray, center diff mount, etc.) will bolt on a GT2 chassis plate?
If you wish to run the "IGT2" chassis length you can use the "STR" (not the STRR, its much longer) chassis with a slight mod to the spur opening and drilling 2 new holes for moving the gas tank slightly forward.

There's also a new chassis (Mika has it now!) that also allows you to use all the 777 steering bellcranks too.

I went with the STR, since the newer one was not offered yet.

You could also just use the 777 chassis you already have now, if you're creative. It would be very close to a IGT1. If the engine's location in the 777 is different and you're putting in a 2 speed, you might have to check on the center drive shaft lengths.
Jspeed is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
GT class--buggy-based on road! duneland Nitro Off-Road 5 03-20-2012 11:03 AM
JRX-S based 4wd buggy?? Why was the idea scrapped? cpatel529 Electric Off-Road 33 12-08-2007 06:19 AM
WTB: .21 NovaRossi based on-road engine parts Speed_Racer R/C Items: Wanted to Buy 1 12-26-2006 11:40 AM
WTB: .21 NovaRossi based on-road engine parts Speed_Racer R/C Items: Wanted to Buy 13 09-30-2006 10:31 AM
WTB: .21 NovaRossi based on-road engine parts Speed_Racer R/C Items: Wanted to Buy 8 03-21-2006 01:05 PM



Currently Active Users Viewing This Thread: 2 (1 members and 1 guests)
scary_jerry
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 03:43 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net