R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 12-26-2007, 12:03 AM   #31
Tech Regular
 
baruke1's Avatar
 
Join Date: Jan 2007
Location: NYC
Posts: 493
Trader Rating: 17 (95%+)
Default

I've seen nothing but good results from ProPinch.com.
baruke1 is offline   Reply With Quote
Old 12-26-2007, 10:57 AM   #32
Tech Regular
 
Join Date: Jul 2007
Location: Baton Rouge
Posts: 360
Trader Rating: 13 (100%+)
Default

Pro pinch has great customer service. also minw went out the next day. i had them back in 4 days from the day it left
ericsp2 is offline   Reply With Quote
Old 01-21-2008, 02:59 PM   #33
Tech Master
 
floss's Avatar
 
Join Date: Oct 2004
Location: Pittsworth, Qld
Posts: 1,141
Trader Rating: 32 (100%+)
Default

Gidday Guys

anybody here used Rayaracing pinching service..
what are your thoughts.......
cheers paul....
__________________
REDS RACING ENGINES
Model Motorsports
floss is offline   Reply With Quote
Old 01-21-2008, 05:15 PM   #34
Tech Elite
 
Join Date: Oct 2004
Location: Michigan
Posts: 3,295
Trader Rating: 27 (100%+)
Default

Quote:
Originally Posted by floss View Post
Gidday Guys

anybody here used Rayaracing pinching service..
what are your thoughts.......
cheers paul....
Ray's work is top notch. I ran a Rayaracing pinched cvr .12 all summer, and still running it this winter. I am currently running a .21 just recently pinched by Ray in my 1/8 scale. It's like getting a new engine all over again. Very trustworthy guy and does an excellent job. I've had him do other engines also and always been more than happy with his work.
jbrow1 is online now   Reply With Quote
Old 01-21-2008, 05:37 PM   #35
Tech Apprentice
 
Join Date: Jul 2007
Posts: 56
Default

i have looked at pinching before and i still dont have an answer to two things. one, will a pinched sleeve last about as long as a new sleeve and two, how many times can you get a single sleeve pinched? im only 15 and my picco p7r evo just wont idle unless its got a brand new plug. I am trying to decide weather to get a go-tech 5 port or re-pinch my picco. got an oppinion?
rc10gt lover is offline   Reply With Quote
Old 01-21-2008, 05:44 PM   #36
Tech Elite
 
macnkitty2002's Avatar
 
Join Date: Jun 2004
Location: Montgomery, AL
Posts: 4,923
Trader Rating: 7 (100%+)
Default

Quote:
i have looked at pinching before and i still dont have an answer to two things. one, will a pinched sleeve last about as long as a new sleeve and two, how many times can you get a single sleeve pinched? im only 15 and my picco p7r evo just wont idle unless its got a brand new plug. I am trying to decide weather to get a go-tech 5 port or re-pinch my picco. got an oppinion?
sounds like that's a mere tuning issue my friend.
__________________
Team Associated RC10B4.2
Losi Rock Rey
macnkitty2002 is offline   Reply With Quote
Old 01-21-2008, 05:49 PM   #37
Tech Apprentice
 
Join Date: Jul 2007
Posts: 56
Default

well i dont think its possible to tune... i was given the engine by my neighbor who decided to remove a head shim so its the same set up as greg dagani. and i cant find anything on the picco p7r evo so i have no clue what its supposed to be.
rc10gt lover is offline   Reply With Quote
Old 01-21-2008, 06:12 PM   #38
Tech Elite
 
Join Date: Oct 2004
Location: Michigan
Posts: 3,295
Trader Rating: 27 (100%+)
Default

First off what % fuel are you using? If 30% then the head shimming should be around .030 or a little less. The less the better tuner ya need to be.

Not wanting to idle and having to lean it way out is a sign of a worn piston/sleeve. New plug won't solve that problem, once the engine warms up it quits.

The engine will last a long time after being pinched. Not sure how long, I just know I've got a ton of time on my cv-r.

Honestly nobody can tell you the life of a new engine either. I can make engines last forever. I have buddies who get half the lifespan I get. Why? No answer, that's just how it is. So you may get more or less than I do or somebody else in Texas, California, Ohio... whoever answers your question.

For roughly $25 you can answer your own question and have a definate answer/opinion made on your own. Be it RayA, propince, or osrocket at least you'll prove to yourself whether you think pinching is good or not.

What's a gotech 5 port go for? 180? Twenty-five dollars is worth forming your own opinion. Heck, I still want to try a gotech just so I can make up my own mind on those...

The only true way to figure if an engine is worn out is to disassemble it.. If ya can't do that though then ya better skip the pinch and go for the new mill. Use the picco to learn on though. Take that thing apart and see what's in there!!
jbrow1 is online now   Reply With Quote
Old 01-21-2008, 07:00 PM   #39
Tech Apprentice
 
Join Date: Jul 2007
Posts: 56
Default

im tearing it down now. it has two shims on it now and my neighbor gave me one in a bag so im going to put that one on. i also looked up in an xtreme mag from way back the needle settings they had and they had 1 1/2 turns in from flush on top and 2 out on bottom. it just seems so lean but then again i did have a head shim less then there engine but i got the same pipe and am running same nitro %.

the enging doesnt hold an idle unless its sky high. and it just randomly dies. im pretty shure its done but im going to re pinch it and start all over again with it.

i agree on your lifespann oppinion. i got 16-18 gallons on a t21bf and i see people complaining they are done at 9. it makes me think i got lucky.
rc10gt lover is offline   Reply With Quote
Old 01-21-2008, 07:14 PM   #40
Tech Apprentice
 
Join Date: Jul 2007
Posts: 56
Default

im tearing it down now. it has two shims on it now and my neighbor gave me one in a bag so im going to put that one on. i also looked up in an xtreme mag from way back the needle settings they had and they had 1 1/2 turns in from flush on top and 2 out on bottom. it just seems so lean but then again i did have a head shim less then there engine but i got the same pipe and am running same nitro %.

the enging doesnt hold an idle unless its sky high. and it just randomly dies. im pretty shure its done but im going to re pinch it and start all over again with it.

i agree on your lifespann oppinion. i got 16-18 gallons on a t21bf and i see people complaining they are done at 9. it makes me think i got lucky.
rc10gt lover is offline   Reply With Quote
Old 01-21-2008, 07:55 PM   #41
Tech Apprentice
 
Join Date: Jul 2007
Posts: 56
Default

ok well i got the sleeve and i can push the piston to the tdc realy easy but its got a tiny bit of pinch, it seems to me its done. am i wrong?
rc10gt lover is offline   Reply With Quote
Old 01-21-2008, 08:10 PM   #42
Tech Elite
 
Join Date: Oct 2004
Location: Michigan
Posts: 3,295
Trader Rating: 27 (100%+)
Default

If it goes to the top or thru the top of the sleeve then you need a pinch.
Everything needs to be in the same orientation when you do this as when it's in the block. Meaning everything facing the correct way.
jbrow1 is online now   Reply With Quote
Old 01-21-2008, 08:40 PM   #43
Tech Apprentice
 
Join Date: Jul 2007
Posts: 56
Default

it wont go to top, but it still wont hold an idle or that it just randomly dies. i think i should just pinch it and start from the beggining.
rc10gt lover is offline   Reply With Quote
Old 01-23-2008, 09:44 AM   #44
Tech Apprentice
 
Join Date: Jul 2006
Posts: 90
Trader Rating: 3 (100%+)
Default

I had a few engines pinched by RayA and have had great results. Ray's work is excellent
davo798 is offline   Reply With Quote
Old 11-28-2008, 05:15 PM   #45
Tech Master
 
SirKarnage's Avatar
 
Join Date: Sep 2007
Location: Tacos Under Cacti, Searing Our Neighborhood
Posts: 1,121
Trader Rating: 110 (100%+)
Default

This needs to be cleaned up then STICKY tacked to the top!
__________________
<><>Paint by Dunn Graphics (RacerX1920)<><>
https://www.facebook.com/DunnGraphics1
SirKarnage is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Pinching of the engine tkhoo Offroad Nitro Engine Forum 43 05-11-2012 02:57 PM
VENDETTA BL motor reviews.. pros/cons jaejw1 Micro and Mini Scales 121 02-09-2011 04:37 AM
Pinching sleeves TexasRacer Nitro On-Road 61 10-03-2007 06:00 PM
Rebuilding vs Pinching vs New CRASH Nitro Off-Road 1 09-09-2007 08:24 AM
Pros and cons about motor FAN Jochim_18 Electric On-Road 53 07-10-2006 01:09 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 09:03 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net