Is there a difference between MGT .21 and 4.60?

[ericem]

Just wondering if the only difference is the engine size. Thanks. Like is the drivetrain more stronger the tranny, u know stuff like that.

[justinspankey]

correct me if im wrong but the 4.60MGT has a stronger tranny made of metal but im not sure never owned one.

[ericem]

So my cousin with a .21 tranny has plastic? THe casing looks the exact same but are the gears stronger or something?

[Duster_360]

The ads when the 4.6 came out talked about stronger trans and drive axles, steel gears and steel CVAs. Here's what was said about the 4.6SE in these forums -

http://forums.radiocontrolzone.com/showthread.php?t=202113&highlight=4.6SE

Bottom line, there is more diff than just the engine.

[ericem]

So the gears in the transmission are plastic then? ANd whats a cva, the only thing from what i can notic is that the clutch bell looks different and the engine. But are the gears steel in the MGT .21

[justinspankey]

according to the link yes it they are steel gears and the .21 are not im geussing as i said never owned one

[ericem]

So is anyone out there with one. DO they know if the gears on the .21 are steel. and was the 4.60 just stronger metal gears?

[SerpentKing101]

the 4.60 also has a different motor mount which you can drop almost any big block in.

[Duster_360]

ANd whats a cva.......

Its the drive shafts, the shafts use a constant velocity joint, AE calls them cva - I guess for CV assembly. Same thing everybody else calls a cvd.

If no body's going to answer your question on whats inside the 21 trans - go to AE site, look at the parts manual and see for yourself. Took me about 5 min to locate it and look myself - AE seems to have merged the parts for the two so if you buy something for the older 21 thats been upgraded on the 4.6 you find only the 4.6 part number. There's only the 4.6 drive shafts listed for example. I did see a few nylon gears for the 21 and the two trans are listed separately. There may be some nylon and some steel in the 21.

http://www.teamassociated.com/shusting/CatalogHub/cathub_offroad.htm

Have you tried asking this down in the MGT thread in the vehicle forum? Lots of racers down there and more likely to know the answer you're looking for.

[ericem]

Ill try them thanks.

[travis j]

the 4.60 also has a different motor mount which you can drop almost any big block in.
the .21 and .28 have the same mount

on the gears,the .21's two speed pinion is nylon,.28 is steel,but .the 28 is not all steel the two speeds spur is still nylon,the cvds are biger and some are mis driled for the hexs pin.oh and the .21 has a 15 tooth cb. and the .28 has a 16.

[ericem]

Oh, and just wondering, do u know if there is any steel gears in the .21 and how much power that tranny can hold?

[travis j]

yes the .21 is all steel except the two speed pinion and spur.the 21 tranz well handle allmost any motor,Iv got a lrp z.28 spec 2 in mine,Iv had that for a half a year now,I got the truck june of 05,and no probs at all.K.O.W.lol

if you have any more ? or probs give me a pm.

[ericem]

Thanks. BEcause i was kinda worried the tranny would be stripped if i upgraded the engine to lets the the new 4.60 engine. Thanks for ur help.

[travis j]

I not trying too tell you what to do,but I would spend $20 more bucks and get the lrp 28 spec 3,the 4.60/.28 makes 28,000 rpm,the lrp is 33,500 rpm
the 4.60 is a 3 port,the lrp is a 8 port,for $169 the lrp is one of the best motors out there for the price.My spec 2 will out run my friend tmaxx on a bad day,plus if you want to race its alot beter.More low end,more top.The first time I raced was with my mgt/lrp and got first place.And its more fun to have a faster motor,but take some ca with you cause your tires are not going to stay on the rim for more than a tank!hehe

[ericem]

Thanks for the suggestion. I think ill go for that motor instead then. Just wondering, if i put a hyper .21 engine, how good will it be? Will it kill the original AE .21 engine, and do wheelies?

[travis j]

I like .28 motors myself,but a good .21 to .24.7 would be OKish.some people say that the ae/tt .21 are under powered,I dont..out of the box it'll do 32mph,I could not get it too wheelie at all...maybe 1" but thats it.If you want too wheelie(like me)realy big, get the lrp .28 and a savage wheelie bar too cause its going to be on the lid most of the time!Im going to post a pic of what the lrp does to your trucks body

ps.you may want to put in a f.o.c in the tranz,takes a 1/4 of a pound off the truck.

[travis j]

I got a ? for you is it the ofna hyper .21 8 port?

[ericem]

Well im thinking about the hyper .21 8 port, but there is no price difference between the LRP and the hyper. So i think the LRP will be perfect. Just need some cash and im good. Also the .21 on mine can not pull a wheelie unless going up a hill, maybe alum clutch shoes could help, or stiffer springs right?

[travis j]

that hyper .21 would do good on a dirt oval or big off road tracks,if you want to bash/race small tracks Id get the lrp.Alum clutch shoes,some are good some are not,I would stay with the stock shoes plus thay last long I had to replace mine only one time sense Iv had the truck.but go with mugen 1.1 springs,that will let the motor rpm go up befor it engages the cb. good luck,I hope all this hellp you out,but any more ? you have feel free to ask.

[ericem]

NO more questions yet thanks for all ur help.

[luvnitro]

I have a question about engine swapping. Will most any engine (.25 to .28) accept the stock clutch and bell from the .21 TTR in the MGT without any problems? I know I might want to go up a tooth or two on the clutchbell, but is everything else an easy swap? Thanks.

[travis j]

Yes,I run the stock cluch on my lrp so it should fit on most 25 to 28 motors.