| [ Total Views: 1100 | Total Replies: 3 | Thread Id: 56019 ] |
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 newoldmanx
A.k.a.: Billy
Wolfsburg Wizard
Posts: 468
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Registered: August 6th, 2006
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Location: fiji islands/sunny coast QLD
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| posted on September 3rd, 2006 at 10:55 PM |
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2275 spg
ok ive just bought the 2275roller from 66deluxe
http://forums.aussieveedubbers.com/viewtopic.php?tid=55742
its currently running 8.1comp 1:1.5 rockers 041 heads 40webbers electronic ign how would you guys rate this combination and where would i start to
improve it
[ Edited on 3-9-2006 by newoldmanx ]
[ Edited on 3-9-2006 by newoldmanx ]
its just a car for f*%k sake
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dangerous
A.k.a.: Dave Butler Muffin Man
23 Windows of Awesome
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| posted on September 4th, 2006 at 07:50 AM |
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First thing to do will be to drive it and see what you think.
You may realise that you have more power than you need.
That is a good grunty combo(depending on cam of course).
If it were mine? I would upgrade the heads to some CNC "wedge" ports and manifolds.
If you intend to keep your small carbs then go for the "oval" ports.
Both these types of heads ARE NOT bolt-on.
The manifolds are a loose fit and will need dowelling,
and the springs will need a thin shim and perhaps
some work to adjust the spring travel to your combo.
And of course CCing of the chambers(and possible machining) to get your desired ratio.
The power gain will be worth every cent!
[ Edited on 3-9-2006 by dangerous ]
| Quote: | Originally
posted by westi
That's mad Alan.
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Craig Torrens
A.k.a.: Craig Torrens
Scirocco Rare
6 times Australian, 7 times State Hillclimb Class Champion
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| posted on September 24th, 2006 at 09:23 PM |
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So is this beasty running yet?
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HS618
Officially Full-On Dubber
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| posted on September 25th, 2006 at 01:13 AM |
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newoldmanx,
Having had experience with roller cranks in a previous life, I would suggest to keep the compression at or under 8:1. This will save the rollers in
the conrod pounding into the journal over time, creating dents or grooves, eventually preventing the rollers and cage from rotating resulting in
failure of the conrod.
Be aware also, that the main bearings are modified to allow oiling to the rollers
Has the crank been pinned to keep it in index?. If you intend to do any/many drag race starts, this would probably be a good idea
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