Jump to content

750 Slabby motors - how far can you take them?


Gammaboy

Recommended Posts

JE do a 955 kit , its not so much extra HP that you get as Torque.

I have an M with an 884 kit gas flowed head  RS 36's and a full Cobra system , never been dyno'd , well not since i got it.

And an RK with an 884 kit gas flowed head FCR39s and a full Yoshi system ,, made 125 rwhp last time on the dyno but there is more to come , the afr meter wasn't working so we couldn't get a reading , I am sure it is running rich and that the Yoshi is holding it back, I need to get a tapered header and link pipe system made for it and I reckon it will be over 135 then .

Slightly different is the 750 watercooled slingy, I have a JE 907 kit and TMR 40s to put together , that should be in the region of 135-140 if I can get an exhaust that will let it breathe. 

Too many projects and not enough time :(

  • Like 1
Link to comment

the short stroke pistons don't fit the long stroke rods without reaming the little end by 1 mm and I wouldn't trust the rod then.

The rods don't swap over either , the heads don't swap across barrels , mating face is a different shape.

B12 liners could be fitted into 750 block as a cheap liner option , I must try this out, I have spare barrels to play with  .

I have thought about getting stepped or sleeved gudgeon(wrist)pins made to allow use of B12 or 1100 pistons or its get JE to do custom ones.

Piston kits are about £350 to £400 , new aftermarket liners are about £75 each plus the gaskets its cheaper to chuck a B12 motor in but I like the craziness of the 6 speed box as the ratios are closer together

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...