Aaz power issue

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   Finally finished timing my Aaz up. Cam and pump timing are good. Got the rover boost pin installed. Compared to the old jx pump on before, it flies. It pulls really well round to about 4k revs in the first three gears no problem. In the top two gears though it definitely hesitates at 3kish revs. Now I know with aerodynamics (or lack of them) it's never going to be fast in the top two gears but it won't pull past this on the flat and only infinitely slowly if downhill. It definitely feels like its hit a wall. Why would it be different than gears one to three where there's no evidence of any kind of flat spot?
Has anyone else experienced this? 

Cheers

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corvusstation Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 10 Sep 07 Location: United Kingdom Status: Offline Points: 138	Post Options Post Reply Quote corvusstation Report Post Thanks(0) Quote Reply Topic: Aaz power issue Posted: 04 Feb 12 at 17:11
	Finally finished timing my Aaz up. Cam and pump timing are good. Got the rover boost pin installed. Compared to the old jx pump on before, it flies. It pulls really well round to about 4k revs in the first three gears no problem. In the top two gears though it definitely hesitates at 3kish revs. Now I know with aerodynamics (or lack of them) it's never going to be fast in the top two gears but it won't pull past this on the flat and only infinitely slowly if downhill. It definitely feels like its hit a wall. Why would it be different than gears one to three where there's no evidence of any kind of flat spot? Has anyone else experienced this? Cheers

corvusstation Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 10 Sep 07 Location: United Kingdom Status: Offline Points: 138	Post Options Post Reply Quote corvusstation Report Post Thanks(0) Quote Reply Posted: 05 Feb 12 at 10:40
	It seems to be drawing a lot of air up the fuel pipe and on close inspection the rubber connectors to the fuel filter are rock hard so I'll start by replacing these and making it air tight. It could conceivably be the problem.

max and caddy Members Profile Send Private Message Find Members Posts Add to Buddy List Vanorak Joined: 12 Dec 09 Status: Offline Points: 2578	Post Options Post Reply Quote max and caddy Report Post Thanks(0) Quote Reply Posted: 05 Feb 12 at 11:39
	it could be.

corvusstation Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 10 Sep 07 Location: United Kingdom Status: Offline Points: 138	Post Options Post Reply Quote corvusstation Report Post Thanks(0) Quote Reply Posted: 11 Feb 12 at 09:32
	Sorted, no air bubbles now, no hesitation!