 Weber’s to PMOs, Extra hp ? |
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| cal914 |
 Nov 13 2018, 03:38 PM
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#1
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Member  Group: Members Posts: 319 Joined: 12-April 12 From: United Kingdom Member No.: 14,366 Region Association: None  |
I’m have my Weber’s taken off and replaced with PMOs on my 2.2 6 cylinder there seemed to be a hesitation with the Weber’s hoping to correct this with the PMOs and add a bit more HP
Thanks B |
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| IronHillRestorations |
Nov 13 2018, 07:03 PM
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#2
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I. I. R. C. Group: Members Posts: 6,716 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None 
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If they have the same jet and venturi package, there shouldn't be a noticeable difference in power.
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| porschetub |
Nov 14 2018, 01:39 PM
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#3
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Advanced Member Group: Members Posts: 4,697 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Depends what the vents and jets were in the Webers,upsizing the vents and jetting from stock is supposed to make some more power,I don't know the spec of the PMO's right out of the box.
Word on Pelican is they are smoother,besides you are replacing new for old,there will be some "lost"power to be found for sure. Good luck. |
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| brant |
Nov 14 2018, 01:50 PM
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#4
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914 Wizard Group: Members Posts: 11,622 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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if you buy the PMO's new and direct
they will likely be sold to you with the correct jetting and venturi's you may feel improvement on your hesitation... it may run better if it was a jetting issue causing the hesitation or you could spend less money and just use the same jets and venturi's on your current carbs for the exact same outcome. sounds like it would be worth the fee to have a shop with a dyno tune your existing carbs and do some jetting work probably MUCH less expensive than buying PMO's |
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| Mark Henry |
Nov 14 2018, 01:59 PM
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#5
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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 |
No difference on HP.
Only exception would be a motor that would run better on 46mm and you are stepping up to 46mm. |
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| sixnotfour |
Nov 15 2018, 02:12 AM
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#6
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914 Wizard Group: Members Posts: 10,423 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains
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QUOTE sounds like it would be worth the fee to have a shop with a dyno tune your existing carbs and do some jetting work probably MUCH less expensive than buying PMO's (IMG:style_emoticons/default/agree.gif) |
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| gereed75 |
Nov 15 2018, 10:47 AM
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#7
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Senior Member Group: Members Posts: 1,244 Joined: 19-March 13 From: Pittsburgh PA Member No.: 15,674 Region Association: North East States
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If the Webers are in need of a complete rebuild, I wonder if going new PMO's would be a similar price.
If not, properly jetted Weber vs properly jetted PMO's should be pretty much indiscernible. |
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