 Was ITB size for 2270 motor Now Single plenum 2270 |
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| cgnj |
 Mar 15 2016, 03:41 PM
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Senior Member  Group: Members Posts: 623 Joined: 6-March 03 From: Medford, NJ Member No.: 403 Region Association: None 
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I have been running 45 dells on 2270 with 34mm vents. Not sure if it was the cam choice (163/86b0, but it was much easier to drive with than with the 38/39 vents.
I was going to gut my spare dells for this project, but I think they are worth more in the box. So, for street 2270 what size motorcycle from wich bike tb should I be looking at for a first build? Thanks in advance, Carlos |
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| aircooledtechguy |
Mar 16 2016, 03:43 PM
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The Aircooledtech Guy Group: Members Posts: 1,966 Joined: 8-November 08 From: Anacortes, WA Member No.: 9,730 Region Association: Pacific Northwest |
A plenum based system is easier to tune and will net you more hp & torque down low on the RPM range. Plus they are just easier to set-up and tune to some extent. A 75mm TB on a factory 2.0L plenum is absolutely HUGE and I would expect tip-in tuning issues going that large. I would look into a Jeep straight-6 TB since they are around 60mm (up from the factory 50mm for the 2.0L) and have an integrated IAC valve.
Then get a pair of these ends and make your own runners with mandrel bent tubing. (IMG:http://www.914world.com/bbs2/uploads_offsite/images.thesamba.com-9730-1458164598.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/images.thesamba.com-9730-1458164598.2.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/images.thesamba.com-9730-1458164598.3.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/images.thesamba.com-9730-1458164598.4.jpg) Use 1.625" tubing and you've got one hell of an intake system. |
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| Mark Henry |
Mar 16 2016, 09:40 PM
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(aircooledtechguy @ Mar 16 2016, 05:43 PM)  A plenum based system is easier to tune and will net you more hp & torque down low on the RPM range. Plus they are just easier to set-up and tune to some extent. A 75mm TB on a factory 2.0L plenum is absolutely HUGE and I would expect tip-in tuning issues going that large. I would look into a Jeep straight-6 TB since they are around 60mm (up from the factory 50mm for the 2.0L) and have an integrated IAC valve. Then get a pair of these ends and make your own runners with mandrel bent tubing. (IMG:http://www.914world.com/bbs2/uploads_offsite/images.thesamba.com-9730-1458164598.1.jpg) Use 1.625" tubing and you've got one hell of an intake system. You right 75mm is too big my bad. It's been a few years since I looked into it last, so I was working from memory. How I got the figure is Ford performance guys are removing stock TB's and replacing them with aftermarket 75mm TB's, Thus stock mustang TB's can be had for cheap. The stock Mustang TB I have in front of me and pictured below is 60mm. If you used a pair of those ends you could do a DIY intake like Nate said. Here are a couple of how to's, first one is a subi so it's actually close to what you would need. http://www.sdsefi.com/air12.html http://www.sdsefi.com/techinta.htm Attached image(s) 
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Posts in this topic
cgnj Was ITB size for 2270 motor Now Single plenum 2270 Mar 15 2016, 03:41 PM
DBCooper Talk with Mark Henry, who has bike ITB's on on... Mar 15 2016, 04:14 PM Mark Henry I'd look for something around 40mm, mine are 4... Mar 15 2016, 04:40 PM cgnj Hi Mark
I was hoping you would chime in. I read y... Mar 15 2016, 05:02 PM
Mark Henry
Hi Mark
I was hoping you would chime in. I read ... Mar 16 2016, 09:53 AM r_towle great to see the annual motorcycle ITB project wil... Mar 15 2016, 05:06 PM McMark ITBs that are too big will limit part throttle res... Mar 15 2016, 07:07 PM falcor75 If you want something that goes in pretty easily g... Mar 16 2016, 06:24 AM Alapone
If you want something that goes in pretty easily ... Mar 16 2016, 10:14 AM aircooledtechguy As a general rule, you step one size DOWN for ITBs... Mar 16 2016, 10:05 AM Mark Henry
You'll NEVER say that abut X-bar or even tw... Mar 16 2016, 10:11 AM Mark Henry You know the one thing I would do if I had a T4 (y... Mar 16 2016, 10:37 AM cgnj
You know the one thing I would do if I had a T4 (... Mar 16 2016, 11:40 AM Mark Henry
I have kicked this around also.
Mustang MAF, 1.8 ... Mar 16 2016, 12:25 PM cgnj
Why do you need a MAF? are you trying to mod a... Mar 16 2016, 12:47 PM McMark :agree: Single TB intakes are more friendly. Mar 16 2016, 10:53 AM colingreene its not a non issue but its less of a issue becaus... Mar 16 2016, 12:03 PM r_towle humor me please,
a 40mm weber or dell gets sized ... Mar 16 2016, 02:00 PM DBCooper Well, air can be compressed, so it's temporari... Mar 16 2016, 02:13 PM gereed75
I have been running 45 dells on 2270 with 34mm ve... Mar 16 2016, 03:19 PM cgnj I decided to back burner ITBs. I did a little bit ... Mar 21 2016, 10:09 PM Mark Henry How big is the vanagon plenum?
As a rule of thumb ... Mar 22 2016, 08:51 AM Krieger I think the stock bore for a 2.0 throttle body is ... Mar 22 2016, 08:57 AM Mark Henry
I think the stock bore for a 2.0 throttle body is... Mar 22 2016, 10:47 AM r_towle Djet works up to 2.4 tested.....not sure of anythi... Mar 22 2016, 12:29 PM Krieger It is nearly stock Djet. Early 2.0 injectors and ... Mar 22 2016, 11:04 PM cgnj Update.
Junkyard shopping list
55 mm throttlebody... Mar 23 2016, 09:39 AM cgnj Progess to date.
Vanagon 2.1 plenum is a dead end... Mar 27 2016, 08:19 PM Mark Henry
Progess to date.
Vanagon 2.1 plenum is a dead en... Mar 27 2016, 09:34 PM cgnj
The 914 injectors are low impedance so you will... Mar 27 2016, 09:45 PM McMark Also the throttle body is at one end so there are ... Apr 4 2016, 06:58 AM aircooledtechguy
I'm thinking this is going to sit on my 2.3 /... Apr 4 2016, 07:32 AM Mark Henry
Also the throttle body is at one end so there are... Apr 4 2016, 07:54 AM cgnj As I am still waiting for the machinist, I need to... Apr 3 2016, 09:12 PM Larmo63 I'm thinking this is going to sit on my 2.3 /6... Apr 3 2016, 09:21 PM cgnj Hi,
This is an update to explain where I am at cu... May 28 2016, 03:13 PM Jake Raby I played around with this a good bit in 2003-05. I... May 28 2016, 09:43 PM cgnj Hi,
Just wanted to update this thread with what ... Jun 3 2016, 09:53 PM |
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