clutch and pistons

does any one know were i can purchase a beefer clutch and or forged pistons

[TallRocket]

Hello DBS,

I first wanted to acknowledge that people are reading your post. To my knowledge, (gained primarily by reading this board for almost 2 years), you might be the first to inquire about clutch or forged pistons. By now there are likely several dozen hyper performance Rockets crafted together with after market exhausts, chips and one off performance tunes with a couple bikes with turbos and nitrous.

You might improve the dialog by explaining how you plan to use the Rocket, your performance objectives etc or what you think the problems are with the stock clutch or forged pistons.

Tom

[dougl]

There was a thread on r3owners.com

Thread on High Compression Pistons

about high compression (11:1) Wiseco (part Wiseco Part # 10299M10160) pistons for the R3. These were specially made for Sharer Cycle Center, a Triumph dealer in Verona, WI (608)845-6768 )

Here's a thread on Nev's clutch:

Nev's clutch

and Nev's cams:

Nev's cams

He's in Australia.

There are plenty of references to heavy duty Barnett clutches.

I had a good talk with Derek at Motolab in Redwood City (650 363 0535). He sounds like a good resource if you want to do expensive performance mods.

Thanks for needing to be more specific. my rocket is turbo charged and the tune was to lean that was recommended. now i have a wide band sensor from innovative motor sports that reads vacuum/boost, timing, air/fuel, RPM, and exhaust temperature. but this unit is very versatile and can change the sensors to what i would like. what i like about this unit is that it as a memory card to record the data and then analyse it on my computer then make my changes using the tuneboy.
but for me all this wonderful technology was to late because I'm blowing oil out the breather tube and have puffs of air coming out of the filler tube. so i want low compression pistons and the clutch is not holding up to the way that i ride I'm on my second set of plates.

[dougl]

On 2007-05-03 10:42, DBS wrote:
Thanks for needing to be more specific. my rocket is turbo charged and the tune was to lean that was recommended. now i have a wide band sensor from innovative motor sports that reads vacuum/boost, timing, air/fuel, RPM, and exhaust temperature. but this unit is very versatile and can change the sensors to what i would like. what i like about this unit is that it as a memory card to record the data and then analyse it on my computer then make my changes using the tuneboy.
but for me all this wonderful technology was to late because I'm blowing oil out the breather tube and have puffs of air coming out of the filler tube. so i want low compression pistons and the clutch is not holding up to the way that i ride I'm on my second set of plates.

Lower than 8.7:1, which is stock?

[Flip]

Dougl:

His static compression ratio is 8.7:1 but when you add a hairdryer, depending on boost, you theoretical compression ratio could be anywhere from 8.7:1 to whatever depending on the psi of boost pressure. If it was me, I'd replace the pistons with stock units and add a spacer plate and waste gate the turbo at 10-15 psi. Besides, a blow off valve sounds neat.

[Motorboy]

JE pistons of Huntington Beach,CA

Barnett Clutches can fix you up,,, what you'll need is stiffer springs in the clutch and they can make you kevlar clutch linings,,,

Drop the compression to 6:1 and jack the boost like Porsche does on their race cars plus an efficient aftercooler will get you to max possible....500+ HP

You'll never get the tire to hook up and everything in the drive line will take a heck of a beating, but you'll have the baddest dog in the pack....

[Flip]

Derek:

Without ever having seen a R3 slug close up, I don't know how much extra material there is, however, the R3 has oil jets aimed at the underside of the pistons which tells me that Triumph is already worried about heat transfer at 8.7:1. Because of the oil jets, I also imagine that the crowns aren't that thick. Oil jets are common practice on diesels where underside crown temperatures can warp pistons and cause pre detonation.

[Motorboy]

One thing is for sure,, there are no stock piston in any motor that I know of that can stand up to a lot of crown metal being removed then the application of big supercharing boost.

Heck, most stock pistons are cast aluminum and if they are high in silicon they will fail if you just show them a picture of a turbocharger/supercharge...

Don't waste your time and $ unless you are going to engineer it properly as all you'll windup with is a broken motor...

with stock pistons, the boost should be kept in the 5 to 7 psi range at the max....and that would be using high octane gas and spark retard to prevent any detonation....

[shiver]

Do a search for Nevs pistons and lock up clutch.He is also doing cams for our bikes now
www.r3owners.com/viewtopic.php?t=7763&highlight=nevs+cams