mattyb13

So I have the LRP spec3 in my CEN MATRIX TRUGGY. Fast. VERY fast. Run times are not that good though. Should I think about a .21 for this thing? Would a .21 have enough power? Any suggestions?! THANKS!

joydude630

.21 will have more power and good run time. What's your budget?

mattyb13

Well my budget is more about reality than dollars. I am not winning world championships but I do know that you need to spend to get a good motor and I am not afraid to do that. I would say $200.00 - $250.00 would e what I expect to pay unless the deal of a lifetime comes along. I was looking at the GO .21 5 port. I have the Go .21 3 port sport in my buggy and its been a nice engine. I was also looking at a GO .25 race engine. Also looks nice. I run a Matrix Truggy, its a little heavier. I do want something with some power if I go to a .21 engine. Any other ideas???
THANKS!

IL2mSturmovik

The Go 25 would work, if you can swing it go for teh GRP 21

{GBI}Harryball

In my ST-1 i use the GO .25 race engine. Its fast and has plenty of power. I also have the GO .21, your fuel economy will be better with the .21 without a lose of power.

sparko

My Feedback: (1)

I run a .21 V-spec in a jammin crt and have more than enough power and we all know how heavy those crt's are

Echelon

erhmmm, a 21. really doesn't has more power than a .28....
But you can also make a huge different if you use the proper tuned pipe, what pipe R ya running?

Oasis TR

My budget is not "huge" either..but I have bought both cheap and expensive motors..my choice is the upper end motors..and the biggest reason on why is not so much performance (as in a lot more) but in durability..most of the "cheaper" motors I have bought are pretty much done (as in time for a rebuild) at about 3 gallons..I'm on my 9th gallon on my Novarossi and it's still just as fast as it was when it was broken in..I know guys that have gotten 14+ gallons out of RB motors..On the .21's..They are my choice for power..I feel that they have more than enough power for "most" tracks, on some tracks a strong .28 actually has to much power and just over powers the track..On some tracks you need the power of a .28 to clear the jumps..but .21's are not slow..well the good ones are not..I just think that a lot of the .21 versus a .28 is driver preference and track specific..if you race on a slick track more HP is not going to make your truggy easier to drive..

slayerphonics

A .28 will have more power and less run time then a .21

Racers use .21's for the run time,

If you want a .21 in the 200 dollar range look at the "GO" line up of engines. Sirio, Picco would be some other good choices in the 200 range. My friends and I have been running the new "GO" 3 port r-spec, its impressive for a 3 port at 170 bucks, and it does sound ALOT like a v-spec, but we are running that engine in a buggy though, I have heard of some guys killing it with that motor in a truggy though.

INTEGRA

IF u can wheel a .28...and venturi it to do 8-10 min...imo there's no advantage on the .21's part.....Sure 1-2 min's in a 45-hour long main might matter....but most club racer's push 20-30 min mains.

Tree1

I am running a Go Tech 5 port turbo in my Cen Matrix Tr Arena truggy and it run great. Even with the heavier Tr Arena, the 5 port has more than enough torque to push it around.

Oasis TR

Most tracks run 20 minute mains for club races..I have seen a few do 30 minutes..but not many..I guess if you use a 7mm venturi you can get 8-10 minutes per tank..but now your .28 runs like a good .21..lol..most guys dont use a smaller venturi when their running a .28..so when their refueling every 7 minutes with their .28 and I'm refueling at 11 minutes, they are pitting twice and i'm pitting once..in a close race the advantage goes to the .21..look at your lap times even with a really fast pit stop your giving up at least 12 seconds..

INTEGRA

w/e floats your boat.

JSRacer

Man, I've tried a few engines in the truggy but why does this Mach 427 keep making it's way back? I'm a firm believer in the Mach. Now if someone could put a wicked mod on the Mach 427 we'd have something that everyone could run!

INTEGRA

ive ran a modded mach...nice power...but the run time's weren't there if i remember right.

HerrSavage

With the stock Mach and Muggy pipe I get a full ten minutes.. It's not brutally powerful(I get passed by VSPECS down the straight, but that also has to do with setup.. My settings are quite rich.. - but then I was temping 212 at the end of a 20 minute semi..), but perfect for a beginner racer like me.. I'm spinning my wheels around most of the track as it is..

Here on a German forum btw, I read something about a new Sirio - the green 21 everybody's been raving about, which has beem modified to be a .24..... Anybody heard about that?

And what's the verdict on the Axe Rosssi 25??? At least in theory these 25 engines seem a nice solution to the 21 v. 25 debates....

supertib

A Mach is a solid motor ..... I remeber the run times were very good on the modded Mach....I know today I could make a Mach much better then I ever did in the past....

slayerphonics

I know trinity has .24 motor that they are claiming has the power of a .28 and run time of a .21

I think I have the artical somewhere.

RcRacer37E

+1 for the OS V-Spec. 250 new and mine got well over 10 gallons and I only replaced both bearings once. Bit out of your 200 range but its a very reliable and strong engine for a truggy.
Sirio cl7b sti is wicked, 300 bucks and has more than enough power to run the 400 plus engines down. Match the pipe for the track. Short track look for a low to mid range pipe and larger track a mid to high end pipe. Its nice to have a few pipes to work with.