You should never tune an engine to any certain temperature but tune it for performance and as long as the temperatures are between 220 to 280 it is OK. If I made a guess I would be guessing you are running pretty rich and not getting all the performance out of it!

ill probably get abused for this but oh well, the thing is there are so many posts on here because the same questions get asked over and over. And like myself pretty new to the sport the hpi was a good choice for beginners and thats what hpi is known for easy beginner vehicles..

46U

Just for aruments sake would you say your MT with the OS engine installed is faster then your Savage and or you Hyper8????

I would guess it is.

I think I know what you anwser is going to be

"You race on a track and do not put much thought into drag racing on the street because they are setup for the track"

But there are others that are more geared just for beginners as they do not make kits as most of your hard core RC people only do kits like I. I one time emailed Traxxas to see if they wherever going to make the Revo in a kit and they said there was more money in selling to people new to the hobby and are not even thing about make kits again. They use to make kits! So if they do not care about RC people like me I will never buy a Traxxas. Here is my on road nitro.

I agree 100%

HPI is made cheap and easy for the beginner. The R40 and possibly the Savage were the only 2 products HPI built with track racing in mind and I think they paid more attention to quality on those 2.

Hypothetically if all of them where geared for top end speed in a straight line yes I do think my MT with the TZ in it would beat my Savage or Hyper 8. Yes I have my Savage and Hyper set up for track so they are geared fairly low. My Savage came with a 17 CB and 47 spur and I am running on the track a 16 CB 49 spur but even the Revo drivers talk about how fast it runs in the straights. Now coarse a stock Savage weights close to 12 pounds now I said stock my Savage with receive pack weights about 11 pounds. On my TZ just to keep the front end on the ground most of the time and tame it down I am running a 15 CB and 47 spur and in about 4 feet all 4 tries are ballooned from a dead stop.

I am worried about my Savage as it has 7 plus gallons of run time and is running so good! You know what they say the run best right before they blow. If I had keep records would not be surprised if it had a couple more gallons on it.

Lets not forget the Hellfire! I know a big time racer here in Georgia racing one! When he comes to the local track every one knows who is going to win. There are quite a few of other brands out there not near as durable as HPI. The first thing with an off road Traxxas a person dose is buy RPM arms. The racers at our local track that have Revo’s that are not running RPM arms are breaking them all the time. I have NEVER broken an A arm on my MT, Savage or Hyper 8.

ok so i was at the hobby shop i deal with lookin around and i all there nitro engines are on sale the one that cought my eye was an os 18 cv r its 99$ i here you all say there really good but is it going to brake stuff all the time or what i want to play with not fix it after 5 mins if ya know what i mean i want it be powerful but not to brake stuff all the time.i also have heavy duty diffs now so help me guys

(sts) u r right it is a Associated pipe my falt i thought is was its off my rc10gt i want my mt2 to sound better and it does


have any u guys got a old nitro buggy for sale because i want one for my brother and i cant trust him with my babies
all i want is a old off road nitro car i dont mind how much it is as long its under 100 quid with or with out radio gear dont mind

joebaby i bet that car of urs the tourning one goes like stink and ur right when u go fast and hit a bump with a touring car ur car will fly . found that out with my thunder tiger ts-4n when i got a 2 speed gear box for it first time out with it in and fulll speed hit a drain cover and the car flewand when it landed the engine got ripped out .and chassis got bent but thats my fault for having the suspension to hard

o.s engines are the best on the market for small blocks. and great value for money. i do not own one as i am from the uk and it is impossible to find a o.s .18cv-r. everyone on here would recomend one. they all own a o.s. and i dont think any of them have had a problem. i own a lrp z18s Pro

hey guys, i was thinking of getting a super-charger for my engine what do you think?

it loks gd but wod that really make a big difference in the performence of ur engine?

Oops, see post below

ORIGINAL: nickrummy

How about you just send the money to me and i'll send you some aluminum foil to bling out your engine. Same difference

They are a waste. Your motor has no valving, you won't gain anything from forcing air into the carb. If your exhaust port was closed and the intake was open then you can cram in there to gain power. With our motors the air is just gonna shoot right through the motor. Not to mention you have to take power from the motor to actually turn the compressor.

I think they cost $199 US? Better off buying a TZ if you want to increase performance from a CV-R.

lol i was thinking that. they are over-priced aswel. it costs the same ammount as a mt2. i wouldnt want one anyway. just seein what you guys thought. my lrp gives me all the power i need. anyway im off as im going up bedfordshire to see family and record the video.

(sts) u r right it is a Associated pipe my falt i thought is was its off my rc10gt i want my mt2 to sound better and it does


have any u guys got a old nitro buggy for sale because i want one for my brother and i cant trust him with my babies
all i want is a old off road nitro car i dont mind how much it is as long its under 100 quid with or with out radio gear dont mind

go to ebay and you can find a bunch of smartech buggies for like $150 with a 2 speed tranny, i dont no how much that comes out to in quid tho

does any body no if a mt2 with a cvrx a pipe and few other hop ups would be able to beat a t maxx 3.3, there are these guys at the track always braggin about their t maxxs and i think i can beat them... that trx 3.3 is a .21 engine right??

the t-maxx 3.3 is gonna win hands down..in accel-and top speed

and its actually a .20 3.3 cc..but its like a suped up .21.

i have the 4-tec 3.3 and let me tell u its a mad difference between the regular 4-tec and the 4-tec 3.3

the t-maxx is gonna win...well wait? is this a drag race or a track race?

if its a track race u stand a good chance

if its drag u loose

i had 1 for a bit 2 use for spares they are crap i what a proper one really

http://cgi.ebay.com/SMARTECH-1-10-ga...QQcmdZViewItem

a buggy for 85 dollars?

of course i know i wouldnt beat it in a drag race, i only race track drag is too boring. oh and one of them has a t maxx 2.5 i figure i can pretty muck smoke that guy on the track cause thats only a .15 engine

lol u really think so?

you mistaking the power of the traxxas line of engines...they are beast!

the trx 2.5r (which is mostly the only 1 on t-maxx's)

is basically a very suped up strong fast .15...sort of like a TURBO