R/C Tech Forums - Trinity EXTECH .21

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R/C Tech Forums (https://www.rctech.net/forum/)

- Offroad Nitro Engine Forum (https://www.rctech.net/forum/offroad-nitro-engine-forum-157/)

- - Trinity EXTECH .21 (https://www.rctech.net/forum/offroad-nitro-engine-forum/222802-trinity-extech-21-a.html)

Trey7

02-12-2009 07:41 PM

Chad I just wanted to tell you thanks for what you did for me at the Psycho. It was very unexpected and very much appreciated, it shows me that you beleive in customer support 100% and I'm now 100% loyal to Trinity. In case you are not sure who this is, I was the guy with Martin and Travis Phillips by there RV. Thanks again for you help.

8&stuff

02-14-2009 01:56 PM

looking at the non modded,pre run trinity 2 .21 for spare and eventually primary truggy engine. my question is does it only need track tuned? im looking to grab 1 and throw in in my bag for when its needed and wondered if i should prerun/break-in myself or need to tune much for conditions...thanks for help

ok i see...looks nice and cheap too...

Rick57

02-14-2009 05:29 PM

Pipe Question

I just install a .21 in my RC8. WOW! What a nice motor. Can’t wait to get to the track! I have been running a RB WS7III and happen to have a 2045 pipe and a 192 header lying around. Will that work with my engine? I am running a JP-3 now which seems to be OK. I paid a good bit of money for the RB pipe and hate to not use it. I plan on getting a "fat boy" pipe in the near future. :confused:

Rick

tom slick 50

02-14-2009 06:31 PM

i run that set up on my rc8t aswell with the jp3 pipe just ordering a big boy pipe but the jp3 runs ok for me also

WideOpenThrottle RC

02-14-2009 08:11 PM

Quote:

Originally Posted by 8&stuff (Post 5431412)

While they do put about 3 tanks through it before it get's shipped out it's still a good idea to put a couple of easy tanks through it preheating it before starting before you run her to hard. I'd rather over break it in than run into problems later on if you rush it. Enjoy it when you get it, I just broke in another the other day and I really am impressed by the quality and performance of these motors.

BoMag

02-14-2009 09:07 PM

Chad

Sent you an email last week and have yet to receive a reply from you. Sent you another email today....

Rico M.

rkhess

02-15-2009 02:40 PM

chad gets pretty busy as a racer and as the go to guy on these extech mortors so just post it and im sure someone on this thread will help you... this thread has sold me on the extech2 motors because everyone has helped each other alot witch is rare on motor threads now if the bigboy was avalable soon id be ready to buy but there on back order....and im stooked about trins new fuel prices

icemandolmite

02-15-2009 05:07 PM

hey guys chad has been sick, since he got back from psyco race
im sure this has been slow him down

itsjusme

02-16-2009 09:36 AM

head shims

Quote:

Originally Posted by Chad Phillips (Post 5380724)

Hi All,

1) IF anyone has a problem with a Trinity engine whether it is a EB or new one. It has to come to us for warranty. Dont know why Ed posted that. He does not work for us anymore. If anyone decides to send him a engine since his departure from Trinity. I will not be able to replace or fix if something were to happen to it.

2) Shims

.21 Pre Run Head Shims = .038"
.21 fully Modified Head Shims = .028"
.24 Pre Run and .24 Fully Modified Head Shims = .020"

this is for 30% fuel

3) Bottomline - There are no more EB modified engines at the factory. We have not had them for a long time. I know Amain has purchased a lot of the 2.0 Extech's..

Why the difference in head shims from pre run and the mod?
If I remove shims from the pre run what wiil it do?

Chad Phillips

02-16-2009 10:02 AM

pre run .21 - raised top piston

fully .21 - flat top pistion

if u run .028" on pre run, you will ruin engine because it will be to little of head clearance.

itsjusme

02-16-2009 10:30 AM

Did not mean to remove .10, more like .03
What is the performance diff between the
mod and pre run.
Thanks for the quick response Chad.

NitroOB4You

02-16-2009 10:36 AM

I havn't run the FM, but from what I have heard, basically, the Pre will have a more snappy bottom. The FM smooths this out and gives a little more RPM range on top. The FM ( I'm guessing? ) will probably also have slightly better fuel mileage. :)

calibra3

02-16-2009 03:23 PM

Hello.

Please, can any tell me how much minutes can do in a buggy with the trinity .21 full modded please?? I want to buy this engine for my Hyper 9.

thanks and sorry for my bad english.

Trever Adamo

02-16-2009 04:43 PM

Quote:

Originally Posted by calibra3 (Post 5440261)

Hello.

Please, can any tell me how much minutes can do in a buggy with the trinity .21 full modded please?? I want to buy this engine for my Hyper 9.

thanks and sorry for my bad english.

Itcan very on how you have the engine tuned as well as the size of the track you run on but the normal it from 9:30-11 min. of run time the pipe you run can make a big difference as well we recmond the Trinity Ex-Tech Big Boy 2056 pipe.

WideOpenThrottle RC

02-16-2009 07:21 PM

Quote:

Originally Posted by NitroOB4You (Post 5439144)

What he said :nod: the FM turns about another 5000 RPM on top compared to the pre run but it does this by taking a small amount of the bottom end. So full mod in the buggy for the big tracks and a pre run for the smaller stuff. I run the FM regardless of track size and I still think it has plenty of get up and go.

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