Stephen:
While you're at it, would you come over to my garage and rebuild my engine too?
I like the sound of what you're doing.
As per the rollers, I don't know -- perchance with the extra lift from your new
cam, and the higher revs you'll be turning, they could be justifiable. But it
seems to me the slightly less resistance your pushrods will encounter against
the roller rockers ain't going to amount to any HP you'll notice, though it
would be nice piece of mind to have them. I'd be interested to hear what some
of the other listers have to say on this ...
--
Martin Secrest
72 TR6
73 GT6
"Hill, Stephen M EDUC:EX" wrote:
> I am planning on building a relatively radical engine, hoping to get to 175
> plus horsepower. I have triple webers, plans on a fast road cam, shooting
> for 9.75:1 compression, lightened flywheel,etc. I think it is possible to
> build this much power and still have it streetable and reliable. I recognize
> the rollers won't do a lot for power (maybe 3hp), but I am wondering if I
> will get more life out of the cam, lifters, and guides. Or is it just
> expensive hardware for racers only? I guess I am hoping to clearly identify
> the benefits, and find a reasonably priced source. Moss UK wants about $900
> US for rollers, which is nuts.
>
> Stephen
>
> > ----------
> > From: Martin A. Secrest[SMTP:msecrest@erols.com]
> > Reply To: msecrest@erols.com
> > Sent: Wednesday, May 17, 2000 4:40 PM
> > To: Hill, Stephen M EDUC:EX
> > Cc: 'triumphs@autox.team.net'
> > Subject: Re: Looking for TR6 Performance Info
> >
> > Other listers might correct me on this, but I don't think roller rockers
> > are
> > going to do much in the way of additional power for your engine. They are
> > used
> > primarily in competition engines as a way of reducing stress at high revs,
> > but
> > I know one very good vintage Spitfire racer who uses stock rockers on his
> > 1147,
> > and regularly turns 7K with no problem.
> >
> > What, if anything, have you done to your engine? There are lots of
> > possibilities; some cost more than others ...
> >
> > --
> > Martin Secrest
> > 72 TR6
> > 73 GT6
> >
> > "Hill, Stephen M EDUC:EX" wrote:
> >
> > > I just subscribed to this list, hoping to find some folks knowledgeable
> > > about getting more power out of the TR6. In particular, I was wondering
> > > about using roller rockers. How necessary are these, and are there any
> > good
> > > suppliers for them? I am avoiding Moss UK as their prices are
> > ridiculous.
> > > Any thoughts? Thanks. Stephen
> >
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