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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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 Posted: Fri Feb 11, 2011 6:48 pm Post subject: |
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Heard back about the cams - the inlet is a low lift
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| The standard inlet is base circle 28mm cam height 33mm so 33 - 28 = 5mm of valve lift which is not too good Where as the one kent cam i'm using is base circle 27mm cam height 35.6mm so 35'6-27= 8.6mm of valve lift |
So - I finally have an answer how the engine was restricted
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oily
Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire
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| Posted: Fri Feb 11, 2011 7:51 pm Post subject: |
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that'll be it then 
Matter of interest...my inlet cam has a base circle of 28mm and a cam height of 36.5 mm
36.5 - 28 = 8.5mm lift so not too different to the Kent cam grind.
I'll look up the standard gsxr cam lift shortly for comparison  |
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oily
Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire
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| Posted: Fri Feb 11, 2011 8:00 pm Post subject: |
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Three different inlet cams are listed for the GSXR 1100W depending which country the bike was destined for........
E-01, 03, 28
and others ..........8.4mm lift
E-04....................4.7mm lift 
E-18, 33 and 39... 7mm lift
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Sat Feb 12, 2011 12:14 am Post subject: |
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So what were the (infamous) Yoshi's they used for the '98 onwards ???
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oily
Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire
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| Posted: Sat Feb 12, 2011 7:05 am Post subject: |
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Urban myth 
only ever heard shadowy stories about such exotic, performance enhancing things. |
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MARTIN
Joined: 09 Dec 2009
Posts: 226
Location: ABERDEEN SCOTLAND
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| Posted: Sat Feb 12, 2011 11:58 am Post subject: |
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Although it is for a gsxr 750 check
http://oldskoolsuzuki.com
tag seven-eleven on the left
tag fast cats technical suzuki library under Technical reference
tag Yoshimura hop up kit manual under MISC
page 13 valve lift
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Marty
State of the art and leading edge of cocking things up
(00) SB6 (95) HD FXDWG STRETCH (01)GSXR1000K1 |
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Jonny B Bad
Joined: 05 Dec 2009
Posts: 555
Location: NE London
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| Posted: Sat Feb 12, 2011 12:20 pm Post subject: Engine out |
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Max lift on Yoshi inlet cam was 8.8 mm.
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oily
Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire
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| Posted: Sat Feb 12, 2011 12:35 pm Post subject: |
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Just wondering evilchuck................
When you originaly built your engine, did you check the valve to piston gap?
Bearing in mind it originaly had a low lift cam and then you fitted high compression pistons and high lift cams. |
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Sat Feb 12, 2011 1:38 pm Post subject: |
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It was checked and checked again by the pressant guy (who's very precise), he reckons it spat a shim because the cam / cam follower tollerance was to great (I'd originall though he said it was to tight but he was taking imperial and I'm a metric man).
There's some oilcooled Yoshi cams on german e-bay atm.
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oily
Joined: 05 Apr 2008
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Location: worcestershire
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| Posted: Sun Apr 10, 2011 1:16 pm Post subject: |
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Should be some news on this by now  |
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Sun Apr 10, 2011 11:44 pm Post subject: |
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Yes - the parts are all together and the engine's being built up. He said at the end of the month because he didn't want to not deliver ... which is a refreshing change. Usually they promise and don't deliver for ages.
He didn't use the Kent inlet and Std exhaust cams though, he subbed in a pair 750 ones instead so I'll sell them on after this.
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oily
Joined: 05 Apr 2008
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Location: worcestershire
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| Posted: Mon Apr 11, 2011 8:41 am Post subject: |
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| How do the 750 cams compare to the 1100 cams for lift and duration? |
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Mon Apr 11, 2011 9:35 am Post subject: |
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I'm not really the one to talk to about the details but here's part of the e-mail
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| Just a quick up date on your bike. I've made some changes the kent cam I was going to use is no good [ well I'm not happy with it ] the lift feels too agressive I can hardly turn it. So I've picked up a set of 750's your loosing just 1mm of lift 8mm instead of 9mm but you gain 1mm on the base circle so not so agressive a much better cam. |
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CBar
Joined: 05 Jan 2010
Posts: 142
Location: Texas
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| Posted: Tue Apr 12, 2011 6:12 am Post subject: |
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Do you have a wiring diagram that you could share?
| Evilchicken0 wrote: |
While I was rumaging through the Bimota manual I found this
Marks and timing for FRENCH market cams. Remember I said my bike would only push 100bhp and that I couldn't find any restrictors. I always suspected it was low lift cams and this seems to proove that therory. |
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Tue Apr 12, 2011 12:36 pm Post subject: |
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There isn't a wiring diagram as such there's a "layout" but it doesn't have any wire colours on it. The Bimota loom doesn't keep the same colours as the standard Suzuki loom, or at least the colours change when they go from an ancillory part to the main loom.
I used the Suzuki diagram and once I'd worked things out I marked all the connections with coloured zipties - I bought a tub of them from Maplins.
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