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GPZ750/810 racer running....

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GPZ750/810 racer marching on 13 Feb 2011 13:26 #430440

  • Lorcan
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I had already modified my oil pump to take a wider rotor on my race engine, it's just handy to have one you can get off the shelf (or ebay).

You won't find Barnett plates in the drag race community. EVERYONE uses stock plates. If they work for you then fine. My road bike made 196hp on stock plates and Kibblewhite springs.
760cc - 8.69@162mph
810cc, 211mph www.750turbo.com
www.stormdragbike.com

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GPZ750/810 racer marching on 13 Feb 2011 13:35 #430442

  • turboguzzi
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OK, good to know, will surely keep the stock plates too now!


I do like the idea of having the stronger clutch basket of the turbo with the extra plate in my bike, so if you have a spare one, let me know :)

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GPZ750/810 racer marching on 13 Feb 2011 15:14 #430476

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It wouldn't fit as the gear on the back of the clutch and on the primary shaft is different to speed the gearbox up for more torque. Think the primary shaft itself is different too?
760cc - 8.69@162mph
810cc, 211mph www.750turbo.com
www.stormdragbike.com

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GPZ750/810 racer marching on 13 Feb 2011 21:41 #430560

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the NA 750 has 29T on the primary, the turbo 31T, indeed speeds the clutch up for more torque capacity. I would need to change both basket and small gear for a swap.

Thinking about this just in case the clutch is not up to it as is. With the extra preload the effort at the lever is already on the high side, I wouldnt want to increase spring force more in case of slip.

We'll see when i hit the track....

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GPZ750/810 racer marching on 15 Feb 2011 17:31 #430932

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to qualify as vintage here, bike needs approval from the Italian federation. So had to mock it together to take photos and send for approval. It's not ready yet, top end is empty :)

Still quite a lot of stuff to do :P
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GPZ750/810 racer marching on 15 Feb 2011 17:33 #430933

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and the other side...
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GPZ750/810 racer marching on 15 Feb 2011 18:14 #430950

  • PLUMMEN
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thats gonna be cool! B)
Still recovering,some days are better than others.

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GPZ750/810 racer marching on 16 Feb 2011 06:42 #431030

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There should be a LIKE button like of facebook.
1977 KZ650B1
-810cc
-Cavanaugh Racing Head
-Mikuni RS34's
-GPR Muffler

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GPZ750/810 racer marching on 16 Feb 2011 07:12 #431036

  • CoreyClough
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Looks cool! Are you running the stock fairing? If the rules allow, it might give you something to tuck behind down the long straights. I'm working on reinstalling mine for this season.
'85 GPz550(ZX550-A2)

GPz550 Base Manual --> tinyurl.com/ze5b3qo
GPz550 Supplement Manual --> tinyurl.com/h34d2o6
GPz550.com --> www.nwsca.com/scripts/gpz_forum_2005/default.asp
First Race Win GPz550 --> tinyurl.com/o5y3ftp

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GPZ750/810 racer marching on 16 Feb 2011 11:31 #431073

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yep, might want to add one later on. bike came without it so that's not much help and most of the vintage fibergalss caters for 60's-70's

so have yet to find a 1/2 fairing that suits it.

in any case, run out of time for such stuff, will add as time allows.

Would like to add some graphics too as bike looks a bit nerdy in one color :P but that'll be for later too

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GPZ750/810 racer marching on 17 Feb 2011 11:20 #431272

  • dutchz
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Lookin' good! Don't they require a shark fin (toe saver) for racing in Italy? I know of a place that can help with the fairing :laugh:
1974 Kawasaki Z1
Stock front hub and rear axle.

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GPZ750/810 racer marching on 17 Feb 2011 13:29 #431302

  • larrycavan
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Lorcan wrote:

It wouldn't fit as the gear on the back of the clutch and on the primary shaft is different to speed the gearbox up for more torque. Think the primary shaft itself is different too?


Actually they changed the ratio to reduce the load on the clutch & transmission. That's what they told us back in 85 anyway.

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Last edit: by larrycavan.

GPZ750/810 racer marching on 17 Feb 2011 13:54 #431309

  • trianglelaguna
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fun bike
1976 KZ900
2003 ZX12R
2007 FZ1000
2004 ninja 250R for wife

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GPZ750/810 racer marching on 17 Feb 2011 14:28 #431315

  • Lorcan
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larrycavan wrote:

Lorcan wrote:

It wouldn't fit as the gear on the back of the clutch and on the primary shaft is different to speed the gearbox up for more torque. Think the primary shaft itself is different too?


Actually they changed the ratio to reduce the load on the clutch & transmission. That's what they told us back in 85 anyway.


That's what I meant - so the trans could take more torque. Sorry if I didn't word it very well.
760cc - 8.69@162mph
810cc, 211mph www.750turbo.com
www.stormdragbike.com

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GPZ750/810 racer marching on 26 Feb 2011 12:31 #433564

  • turboguzzi
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racer is marching on indeed, was just too busy crankin' in the garage to post anything.... must have put in there a good 30 hours this week alone (that's after work, mind you :P )

in any case, after playing a bit with the ignition wires (was off by 180 degs) bike finally started with a nice vroom today, so i can take a deep breath. sounds good and always a nice feeling when a former pile of rust comes back to life as a fire breathing racer .

will try to update with pics before leaving to the track on thursday,
if i dont manage, then look fwd for a first race report after next weekend.

Cheers

TG

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GPZ750/810 racer marching on 26 Feb 2011 14:43 #433589

  • seanbarney41
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I don't know how you are set for camera's, but I love videos:woohoo: Please, please...

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GPZ750/810 racer marching on 26 Feb 2011 16:25 #433601

  • kzr750r1
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Nice to hear it fired and your efforts are rewarding you.

With the videos your showing a mixed pack... So I'm just wondering why a zx750 as your race platform of choice?

Look forward to a test report... :woohoo:
KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST

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GPZ750/810 racer marching on 26 Feb 2011 21:56 #433642

  • 531blackbanshee
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good luck at the races!


leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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GPZ750/810 racer marching on 26 Feb 2011 23:20 #433648

  • purls
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This is great, man. WTFG!
1983 KZ750 Spectre
1978 KZ650B2A

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GPZ750/810 racer marching on 27 Feb 2011 03:37 #433653

  • turboguzzi
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kzr750r1 wrote:

Nice to hear it fired and your efforts are rewarding you.

With the videos your showing a mixed pack... So I'm just wondering why a zx750 as your race platform of choice?

Look forward to a test report... :woohoo:


I was thinking the same, only thing that those videos arent mine :) they are corey's and i wouldnt race a zx550 against the bikes he does either ;)

its a strange thing that over there in No Cal they dont have any proper vintage racing class for a 550

I'll be racing mine in the open class in the italian vintage championship. I'll be a bit down on power in the full 1000c.c's KZ and GS, but the GPZ is much lighter so hoepfully in the tighter tracks it should give them a good fight.

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