Bob said it is ok for me to share the info. Note that with the pics, these emails are about 10mb. If you need a bigger email box, I can send you an invite for a gmail account.

share share share!!

yay!

man does that engine look sexy.

Quote from: sprint_9Send those emails my way, t_netsch@hotmail.com   Thanks.  Also you mentioned above you were going to run different carbs, what bike did they come off of?

I just sent the first e-mail.

I did not see that you asked about the carbs until now. They are Keihin CR flatslides with velocity stacks. Not sure if i want to add an airfilter or make a screen for them. I do not remember the size, but I think they are 39mm. Not sure if these came from another bike but I have seen them listed for other bikes. 4 packs sell for $200-400. They came with all the stuff I bought from JamesG. Still sorting through it all.

Cool, I saw somewhere else too, I think in one of those threads I linked to on the other page that some GSXR carbs would work.  Bob sent me the emails earlier today so Ive been reading through them for a while now.  The one thing I dont understand is how the cams are lubricated, Bob runs some lines up the front but is that just addtional to the inner oil passages or is it the main source of oil lubrication for the head?  That is my main question I guess maybe Ill have to read it another 2 or 3 times, theres so much good info its amazing.  Alot of craftsmenship went into that engine.

The CR carbs are not vacuum actuated so there should not be any lag time. I was having a slight hesitation when I was coming out of a turn at around 1/2 throttle and then slam it wide open. I was having to go to 3/4 then ease into WOT. I am hoping that with the CR carbs this lag would be eliminated since the slide is controlled directly by the throttle and not a vacuum. Plus they look really cool! btw...I have a 1/4 turn throttle.

I have been thinking about adding some ram air intake tubes to feed fresh cool air to the carbs. I know this is better than breathing the warm air coming off of the motor. Nothing fancy, just some kind of light weight flexible hose. Maybe cut holes in the front of the fairings to mount them.

I have not read over all of Bob's text too throughly yet. I am sure most of the parts that I do not understand would be answered by actually seeing the head and working with it....if or when I decided to take on this journey.

i would also like to see some pics please

moto_3bep@hotmail.com

Quote from: dgyverI have been thinking about adding some ram air intake tubes to feed fresh cool air to the carbs. I know this is better than breathing the warm air coming off of the motor. Nothing fancy, just some kind of light weight flexible hose. Maybe cut holes in the front of the fairings to mount them.

I have not read over all of Bob's text too throughly yet. I am sure most of the parts that I do not understand would be answered by actually seeing the head and working with it....if or when I decided to take on this journey.

Yea those are kind of the same thoughts I had, I think when I do my engine mods Im gonna rig up some sort of a cold air intake, I dont think it will hurt.  We run a scoop on our sprint car with a plate type deal below the air filter to keep the hot air out of the engine, basically the same concept I want to use on my bike.  After seeing all thats involved with the head swap I doubt I will end up doing it, Bob has his crap together, maybe if I got some spare parts to try it on I might think about it.  I think at the moment Im probley going to go up to 78 mm pistons, perform some head work-perhaps port and polish,  have megacycle cams rework my cam shafts, do my cold air intake, and maybe install some different carbs.  :dunno:

Quote from: GRUi would also like to see some pics please

moto_3bep@hotmail.com

sent the first one

Another question I have been wondering about is what would you do for pistons, those custom pistons he had made up were pretty spendy I think.  I wonder if you could use GSXR 1000 pistons?

thanks  

Quote from: sprint_9Another question I have been wondering about is what would you do for pistons, those custom pistons he had made up were pretty spendy I think.  I wonder if you could use GSXR 1000 pistons?

Need to check the wrist pin diameter. The GS is 18mm. The gix1k uses 16mm pins.

4 valve head Suzuki's that use 18mm wrist pins:
80-84 GS750
87-95 GSXR750
89-97 GSX750F
80-83 GS1100
80-83 GSX1100E

There may be some others.

Wiseco makes a 74mm and a 76mm piston for the 88-89 GSXR 750 and 88-97 Katana that might work.  They list a price of 124.95 for the 74 but dont list a price for 76.  Wow just noticed the compression on both of those pistons is damn high, 13 to 1 for the 74 and 12 to 1 on the 76,  I wonder if used in the GS if the compression would be that high?

The only real way to find your compression ratio is to measure it. I have been seriously contemplating swapping in the gpz1100 pistons.  I got a friend that can bore the cylinders for free.  So basically I would only have to pay for some parts. If I do that I will definitely check my compression ratio and take pics too for everyone to drool over. Haha