Was ITB size for 2270 motor Now Single plenum 2270 |
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Was ITB size for 2270 motor Now Single plenum 2270 |
cgnj |
Mar 15 2016, 03:41 PM
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#1
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Senior Member Group: Members Posts: 627 Joined: 6-March 03 From: Medford, NJ Member No.: 403 Region Association: None |
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 |
aircooledtechguy |
Mar 16 2016, 03:43 PM
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#2
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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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