Trinity EXTECH .21
02-12-2009 | 07:41 PM
#1321
Tech Adept
Joined: Jan 2009
Posts: 124
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.
02-14-2009 | 01:56 PM
#1322
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...
ok i see...looks nice and cheap too...
Last edited by 8&stuff; 02-14-2009 at 02:03 PM. Reason: i re-read thread....
02-14-2009 | 05:29 PM
#1323
Tech Regular
Joined: Nov 2008
Posts: 271
From: Roswell, GA
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. 
Rick
Rick
02-14-2009 | 08:11 PM
#1325
Joined: Jun 2006
Posts: 2,608
From: Omaha,NE
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...
ok i see...looks nice and cheap too...
02-15-2009 | 02:40 PM
#1327
Joined: Sep 2008
Posts: 2,767
From: Pleasant View TN
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
02-16-2009 | 09:36 AM
#1329
Tech Adept
Joined: Jun 2003
Posts: 211
From: Chicago ,IL
head shims
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..
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..
If I remove shims from the pre run what wiil it do?
02-16-2009 | 10:36 AM
#1332
Joined: Sep 2001
Posts: 3,042
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. 
02-16-2009 | 04:43 PM
#1334
Tech Apprentice
Joined: Mar 2008
Posts: 50
From: Huntington Beach Ca
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.
02-16-2009 | 07:21 PM
#1335
Joined: Jun 2006
Posts: 2,608
From: Omaha,NE
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.