New clutch?
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Grand HDF Member
Joined: Jun 2013
Posts: 4,998
Likes: 870
From: Iowa
New clutch?
So I did cams, intake, exhaust, big bore with higher compression pistons and am expecting somewhere between 95 and 100 HP. Do I need to replace the clutch plates and put in a stiffer clutch spring? It does feel a bit like it is slipping when I accelerate hard in 3rd gear.
Grand HDF Member
Joined: Jul 2016
Posts: 4,384
Likes: 8,742
From: Texas
AIM VPC VP95TL -
https://aim-tamachi.com/collections/...roducts/vp95iv
more
https://aim-tamachi.com/collections/vp-clutch
https://aim-tamachi.com/collections/...roducts/vp95iv
more
https://aim-tamachi.com/collections/vp-clutch
Last edited by cvaria; Dec 4, 2017 at 05:17 PM.
Road Captain
Joined: Jun 2007
Posts: 632
Likes: 86
I have tried various brands and types of clutches and I have been most satisfied with the Alto Carbonite
I've hopped up my Twin Cam enough to slip the stock clutch. Using the Carbonite allowed me to keep my stock easy-pull clutch spring and still handle the increased power of my modified engine.
You can shop around and find these at some good deals. Just for reference, here is the listing used by J&P:
https://www.jpcycles.com/product/630-728?utm_term=
.
I've hopped up my Twin Cam enough to slip the stock clutch. Using the Carbonite allowed me to keep my stock easy-pull clutch spring and still handle the increased power of my modified engine.
You can shop around and find these at some good deals. Just for reference, here is the listing used by J&P:
https://www.jpcycles.com/product/630-728?utm_term=
.
Last edited by leafman60; Dec 4, 2017 at 08:03 PM.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,900
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From: poway
All you need for a 97 ci motor is same plate count Barnett Kevlar and a 380 lb spring.. Everything else is different flavored icing..
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Grand HDF Member
Joined: Jun 2013
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From: Iowa
What about the 340 lb spring with the extra plate kit? I do a decent amount of in town riding and I've heard that 380 lb spring can be rough on the hands.
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Seasoned HDF Member
Joined: Dec 2005
Posts: 19,900
Likes: 8,007
From: poway
In your case I'd say it would work.. In fact it would probably work with a stock plate count clutch. I ran a stock plate count kevlar with the older 330 lb spring in a my 103 EGC (cr 10 to 1, various cams, ported heads, big throttle body, various exhaust systems) for about 60,000 miles. It starting to get a little slippy at the end. FWIW I went 107 (upped cr to 10.5), bead blasted the steels, added the 380 and it's holding fine.
Some of it depends on what you want to do with the bike, If you want to wheelie, power shift, or burn rubber, you'll need the heavy spring. There is probably some time limit before it need rebuild.
Heavy spring is a PIA in traffic. I went with the se heavy spring over my barnett kevlar extra plate kit.
i have to really man up when in town. The vpc make it easier to live with at speed
i have to really man up when in town. The vpc make it easier to live with at speed
Last edited by cvaria; Dec 5, 2017 at 09:50 AM.