Sandman
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Posts posted by Sandman
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One option is to buy a stand alone system like GripOne TC. We have tested this system on a CBR1000RR Superbike during this race season. But it is not easy to fit this system to an old slingshot or a slabby.
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The head gasket for the 1127 engine should work.
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As shown on the Picture, one of the cam lobes and rocker arms are worn out. Fortunately, I got a race ported and shimmed head with stiffer valve springs and a set of webcam camshafts laying around.
I also need to grind off the bottom crank to get correct clearance between rod no. 3 and the crank case. Rest of the work should be straight forward, just having to order new crankshaft and rod bearing.
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I have started the work, is this a bad casmshaft? :-)
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Not this one, but a similar bike.
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46 minutes ago, clivegto said:
Thanks, it was something like this I was searching for :-) Here is a picture of my old GSXR 750 RR
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1 hour ago, Gixer1460 said:
Which implies the pistons are taller in the 1052? And so if used with a +1mm stroke they'll pop out the top of the block. Can't use the 1127 pistons unless you over bore the barrels hence matching barrels to crank.
No, because JE 78 mm pistons can be used as standard bore (high-comp) for the 1127 og big-bore (1109) for 1052.
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19 minutes ago, jonny1bump said:
Just thought is 1052 barrel bolt hole pitch different.
No, the hole pitch is the same.
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36 minutes ago, no class said:
the difference in stroke is at the crank .
It is obvious :-)
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Maybe the rods are longer for the 1052 engine?
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The 1127 has 59 mm stroke, and 1052 had 58 mm stroke, but the height of the barrels are the same.
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why?
Because I've got 2 (low milage) engines for free from a friend.
Engine No. 1: 1127ccm with damaged crankcase after a crash
Engine No. 2: 1052ccm with damaged crankshaft and rodsTherefore, I will try to swap the crankshaft, pistons, rods and transmission from 1127ccm into the 1052ccm crankcase.
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Anyone tried to swap a crankhaft and transmission from 1127 into 1052 gsxr engine?
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According mye measurements, the actual dome volume of the cylinder head is 27 ccm for a GSXR 1127. The piston dome volum for standard pistons appr. 1.0 -1.1 ccm. Effective dome volume is 25.9 ccm -26 ccm. The deck heigth, piston to valve clearance ,and piston to head clearance must be carefully measured when using highlift cams and high-comp pistons. I run CR 13.6:1 and webcams 236/223 and race ported head (GSXR 1100 engine and GSXR 750 RR -88 frame).
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According my measurements, the piston deck clearance is approximately 0.25 mm with cylinder gasket (compressed). Thickness of cylinder head gasket is 0.76 mm.
Thickness of cylinder head gasket + piston deck clearance=1.0mm -> volume is 4 .85 ccm.
The cylinder volume is 1127/4=281.9 ccm. The effective dome volume is 22 ccm (approximately).
CR=(281.9+22+4 .85)/(22+4 .85)=11.5
The compression ratio is 11.5:1 by using a DOT head on a 1127 ccm GSXR 1100.
Standard compression ratio for a 1127 ccm GSXR 1100 With 26 ccm effective dome volume is
CR=(281.9+26+4 .85)/(26+4 .85)=10.0
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Yoshimura and Acrapovic on two 7/11 + Yoshimura tuned snowblower With RS-3 full exhaust :-)
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That spring should work. But you must check that the spring you are ordering also has the correct inner diameter.
You should also measure the sag to find the correct preload of the spring.
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Here is a picture of my slingshot 1988 and GSXR750RK with gsxr 1100 engines. Rough-and-ready to race.
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I made a mounting kit for an Ohlins steering damper. It has worked Perfect for 3 years.
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You should by a Ohlins spring with spring rate between 80 N/mm and 90 n/mm, depending on your weight and riding style (road or race).
Here is the code for springs with different rate:
Ohlins spring code: 01093-24 (with rate 80 N/mm)
Ohlins spring code: 01093-26 (with rate 85 N/mm)
Ohlins spring code: 01093-29 (with rate 90 N/mm)
All these springs are easy to find on Eblag.
The shock should be mounted as described in Ohlins manual:
https://www.ohlins.com/app/uploads/world/2011/04/MI_TR043_1_x.pdf
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The spring rate for TR043 is 120 N/mm and is way to stiff for the slapside. This shock absorber has only preload and rebound adjustments and it is not a high spec. Ohlins shock. https://www.ohlins.com/app/uploads/world/2011/04/MI_TR043_1_x.pdf
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I am based in the nothern part of Norway and I intend to set the carbs up on a dyno. I only need a starting point for the setup. Now I have a set of RS38 on the bike, which work quite good, but want to try these TMR to see if I can get more top end Power. This is one of my race bikes..
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I have a set of Mikuni TMR 40mm carbs for GSXR 1100. The head is race ported with webcam camshafts .370/.330, stiffer valve springs and high comp (13:1) pistons. Anybody who can give a setup for these carbs?
I have a dream
in Oil Cooled
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Most drivers do not drive hard enough to utilize TC. If you do not spin up the rear tire on the track, you do not need TC. An old gsxr is not that powerful and does not need TC :-)