Triumphrat

sharpshooter · 11-26-2006, 08:15 AM

Before I do anymore performance mods to my bike I thought I would try to learn about turbo- charging.

Does anyone know if there is a Bonneville specific turbo-charging kit available?

Jojje are you out there?

Thanks, Rick........................

Fast_Fashion · 11-26-2006, 11:39 AM

i don't know if there is a kit, but people deffinately do it.

IMO it would just be adding more complexity to something that's supposed to be simple and fun.

[ This message was edited by: Fast_Fashion on 2006-11-26 10:42 ]

jojje1963 · 11-26-2006, 12:29 PM

Turbo connection makes a kit but I haven't heard anyone use it, in fact I only know of 6 turbo Bonnies and I have built, or helped build, them all.

There are many opinions on how stupid it is to put a turbo on a Bonnie: Buy a GSXR, it looks wrong, it will blow up, and so on. But not one off all the people who have tried my bike say it's a stupid idea, they all think it's one of the greater ideas there have ever been :wink:

A turbo kit is normaly $3,500 and up. I would go EFI too if I was you. I can build a bike for you or just get you the right parts if you like to build one yourself. If you use Megasquirt EFI I can even tune it over the Net!

jojje1963 · 11-26-2006, 12:51 PM

Fast,

There is no simpler way to get 120hk from a Bonnie, and it's still fun. You know that already, don't you :wink:

sweatmachine · 11-26-2006, 01:39 PM

jojje, what turbo do you use? Do you use stainless downpipes/exhaust? It looks like it from your pictures...

Do you weld stainless or have it done?

I can weld, but my mig welder is only setup for mild steel. I made exhaust pipes for my XS650 but they're mild steel and I'd worry about rust issues, especially with a turbo where you wouldn't want leaks.

sweatmachine · 11-26-2006, 01:40 PM

also, have you ever done a high compression/low boost setup?

Seems like a wiseco 904 with 10.5-1 and a mild boost, say 6-10psi would be fun and very rideable.

Course I'm sure your other setups are plenty rideable too.

jojje1963 · 11-26-2006, 01:59 PM

On the streetbikes I use a Schwitzer S1BG-L. You should use stainless pipes between the head and turbo since steelpipes can't take the heat. You can MIG weld it with a standard MIG setup but of course it's better to TIG it.

I have tried 9.5:1 but it's no good on regular gas, one reason might be that I don't use an intercooler. 8:1 is perfect though. And don't worry that you won't have enough torque down low, I have 140NM at 2,500rpm but that will only trash the clutch so I never ride it like that. Once you are over 3500RPM there is no lag at all. It doesn't feel like a 120HP 900cc but like a 120HP1,800cc. It's similar to a RIII to ride only much faster

sharpshooter · 11-27-2006, 01:37 AM

Thanks jojje, I am getting the bug. Is it true you might be coming to the salt flats this coming september? I f you are I would like to look you up.

Thanks again, Rick........................

jojje1963 · 11-27-2006, 02:09 PM

There was talk about a Triumph only meeting at Bonneville, then I would try to go. But I haven't heard anything for a while. It needs planning so I need to know soon or I won't make it.
You could always fly over here and see me racing, and try my bikes!

tommyturbo2 · 11-27-2006, 03:30 PM

Sharpshooter: I have a Turbo Connections kit on my 01 ST, and it works great. However, it costs $6K, support from TC is adequate at best, plus if a turbo malfunctions even at a low mileage (my turbo failed at about 3000 miles) it comes out of your pocket, not TC's.

JOJJE's set up uses an turbo with a wastegate (inexpensive), whereas TC's is a variable vane (no wastegate, read VERY expensive $2K). The variable vane turbo is nice because it has no turbo lag at all. A turbo with a wastegate has turbo lag if the turbo is a bit on the large side.

The price JOJJE quoted is an excellent one, especially if that includes the EFI set-up. I hope JOJJE develops an intercooler setup, because that will pull out some of the heat that limits boost pressures. Cheers, tommyturbo2.