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 |
McMark |
Mar 15 2016, 07:07 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
ITBs that are too big will limit part throttle resolution. A small change in throttle makes a big change in air flow.
ITBs that are too small can choke off the top end. I agree with Mark that 40s would probably be a good choice, but you could go up to 44. There probably isn't a distinct advantage to any size in that range, unless you're planning on dyno tuning everything and swapping ITB sizes to check everything. |
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