View Single Post
Old 08-11-2015, 11:06 AM   #46
bananana
Need to Seek Professional Help
 
Join Date: Jan 2004
Location: .
Posts: 1,042
Thanked 1,051 Times in 265 Posts
Failed 120 Times in 37 Posts
Quote:
Originally Posted by anti-vip View Post
He's my buddy and we talked to you at the bike night at 1st gear
Ah, yes. You found me!


So for anyone else pondering a vintage turbo setup, I've been looking into the upgrades I will eventually need for a reliable turbo setup.

Most of the dudes out there with turbo'd CB750s are more into drag racing than I am but from what I'm reading, depending on boost, I should be expecting somewhere about 100 WHP and doing about low 10's to high 9's in the 1/4. Cool.

There are some guys that do run stock motors but it is definitely not advised for higher boost setups. I'm thinking I'll run something like 6-8psi initially (or whatever George recommends) until I get the internals set up properly.

The standard mods required for a more reliable big boost setup are:

1. Balanced Crank
2. Aftermarket Steel Rods. Either Yoshimura or Carrillo.
3. Aftermarket pistons -- 8.5:1 or lower. Big bore recommended.
4. Aftermarket valve springs / titanium retainers (For higher boost)
5. Heavy duty case/cylinder studs
6. Dyno tune @ Cypress Motorbike in Delta

A few recommended but not required mods:

1. Boost/AFR/Oil Temp Gauges
2. Modern ignition
3. Clutch upgrade

I don't know what the hell I'm going to end up doing with the thing but hopefully she'll be reliable enough for the standard posing at Starbucks, cruising around the city and some high-paced long distance canyon runs.
__________________

2007 Ducati SportClassic SE #72/100
1979 Honda CB 750 Café-Fighter
2008 Yamaha R6 (Track)
bananana is offline   Reply With Quote