R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 04-21-2008, 08:55 AM   #1
Tech Adept
 
almtx3's Avatar
 
Join Date: Aug 2007
Location: Miami, FL
Posts: 100
Default OS .12TZ - 3 Port vs. 5 Port

Thinking about picking up an OS 12TZ.

How big of a power difference is there between the 3 port and the 5 port? Is the 5 port that much faster?
almtx3 is offline   Reply With Quote
Old 04-21-2008, 09:07 AM   #2
Tech Addict
 
Join Date: Jan 2008
Location: ATL
Posts: 684
Trader Rating: 11 (100%+)
Default

do you want to stay legal for racing or is that not a concern?
Baedarlboo is offline   Reply With Quote
Old 04-21-2008, 09:33 AM   #3
Tech Adept
 
almtx3's Avatar
 
Join Date: Aug 2007
Location: Miami, FL
Posts: 100
Default

My local track usually has a few club races and they are pretty much outlaw so thats why Im considering the 5 port. Honestly, Im not going to be racing much within the ROAR or IFMAR Rules so I'm just curious on seeing what kind of power difference these engines make. Maybe in the future, Ill try to have both the 5port and the 3port so If I ever decide to race legally I can swap in the 3port, but thats wishful thinking for now.
almtx3 is offline   Reply With Quote
Old 04-21-2008, 10:02 AM   #4
Tech Adept
 
bboy's Avatar
 
Join Date: Feb 2008
Location: CA
Posts: 218
Default

For one, the 5 port is cheaper but you won't see the difference unless your track is reasonably "big" or has a long stretch of straight. I have both and I usually use the 3 for smaller/street tracks, and use my 5 for the larger and straighter tracks.

Be sure to spend time breaking in the engines. The OS take some effort but once done, they are great.
__________________
Serpent 960-08 + Max XL9
XRay NT1 + Max XXL3
bboy is offline   Reply With Quote
Old 04-22-2008, 09:36 AM   #5
Tech Adept
 
almtx3's Avatar
 
Join Date: Aug 2007
Location: Miami, FL
Posts: 100
Default

I think Im going with the 3port for now.

What pipe would you guys recommend to use with this engine?
almtx3 is offline   Reply With Quote
Old 04-22-2008, 03:58 PM   #6
Tech Champion
 
tony montana's Avatar
 
Join Date: Aug 2002
Location: Leonardtown Md.
Posts: 6,145
Trader Rating: 66 (100%+)
Default

or you could get the 3 port tz eb mods. I have one and its quick
__________________
K.C. Guy- TLR- Horrizon Hobby- Team Trinity- 92 zero designs- AKA
tony montana is offline   Reply With Quote
Old 04-22-2008, 04:11 PM   #7
Tech Apprentice
 
MTX4JR's Avatar
 
Join Date: Dec 2007
Location: Ft Lauderdale Fl
Posts: 56
Default

Quote:
Originally Posted by almtx3 View Post
I think Im going with the 3port for now.

What pipe would you guys recommend to use with this engine?

Here is where it gets tricky the best pipe for the os was o.s 1040 pipe and header combination but i hear that that o.s is not making that pipe any more. I have tried every thing from the rd logics pipes to the nova rossi 2630. The o.s like pipes that are designed like to the 1040 like the nova 2601. this pipe worked well on the os. If you concerned about cost the rd logics turbo pipe are good and very sturdy.
__________________
Either go Fast or go Home.

Car: Mtx4
Radio Futaba 3pk
Engine: Novarossi / Os Speed Tunned.
Fuel: Maxy / O' Donnell
MTX4JR is offline   Reply With Quote
Old 04-23-2008, 05:52 PM   #8
Tech Elite
 
HarKonnenD's Avatar
 
Join Date: Aug 2001
Location: Connecticut
Posts: 3,024
Trader Rating: 23 (100%+)
Send a message via AIM to HarKonnenD
Default

I raced a TZ 5 port on the track and we were very close on the straights with me in the lean. Probably he had the wrong pipe on the car and could work on tuning to get more. Then again I have a Carlson TZ tuned .12 so no telling there. You won't need a 5 port to beat the rest anyway - just go with the best pipe you can get or get something slightly faster for the same price.
HarKonnenD is offline   Reply With Quote
Old 04-23-2008, 08:11 PM   #9
Tech Regular
 
jameslow's Avatar
 
Join Date: Feb 2007
Location: Somewhere?????
Posts: 381
Trader Rating: 1 (100%+)
Default

you can try Skyline VR12 plus pipe. I also once tried my friend RB pipe! Very nice sound, and output power! One thing i can notice when i put on the RB pipe is that u can feel ur engine is running very smooth!
__________________
Waiting!
jameslow is offline   Reply With Quote
Old 04-24-2008, 01:47 AM   #10
Tech Addict
 
RevMaxx's Avatar
 
Join Date: Jun 2006
Location: Cebu
Posts: 687
Send a message via MSN to RevMaxx
Default

i had the 12tz-p5 and now its a 12tz-p3 after rebuild. i used the os 1040 pipe on both... have to say it a very good pipe for this engine, car felt responsive. fuel mileage with this pipe is quite good.

3port - normally has low-end torque and is on better fuel consumption between the 2. very good for small to medium size technical tracks.

5port - has the upper hand on top end and good for large tracks with long straights. sips fuel more though compared to its 3port brother
RevMaxx is offline   Reply With Quote
Old 04-24-2008, 01:58 AM   #11
Tech Apprentice
 
Join Date: Sep 2007
Posts: 62
Default

I think the O.S. Tz 5 port will be good for the new GPR kawahara conversion since the 5 port has more RPM's up on top.
Paul D. is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
New OS 12tz 5 Port IOwNMkeG R/C Items: For Sale/Trade 3 04-20-2008 12:15 PM
OS 12TZ TURBO 3-PORT PAPAMAC R/C Items: For Sale/Trade 2 01-16-2007 02:04 AM
OS 12TZ 5 Port Blazin~ Nitro On-Road 15 10-07-2006 09:11 PM
OS .12TZ 5 or 3 port? BIGTACO Nitro On-Road 13 09-16-2006 10:44 PM
O.S. 12tz(s) 3 port turbo---NIB WYLDTHING R/C Items: For Sale/Trade 3 01-14-2006 12:25 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 01:34 PM.


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