Joe
I agree with using the proper tool for the job. I would not run without the
bearings. As far as cam choice goes, I'd think that the A7 would be good
for autocross. I've not run one, but I have used the A6 and am currently
using the A8. Neither the A6 or A8 are much good below 4500 rpm. The A6
taps out around 6500 while the A8 will go quite a bit higher. The A6 cam is
streetable, but just barely.
Jim Norlin
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of Joe Guinan
Sent: Sunday, April 19, 2009 6:04 PM
To: fot@autox.team.net
Subject: [Fot] Trick for installing Spitfire cam bearings?
Anyone have any tricks? Or do I just have to break down and buy a proper
tool or have a local machine shop install them?
This is for Jeff Senty's old Midwest Council race Spitfire with an 1147
engine. I'd like to use the Kastner A7 cam I have (I realize there are
newer grinds available, just trying to not buy parts). I guessed I'd ruin
the new cam bearings installing them myself, and I did.
Instead of installing the bearings, should I just go ahead and buy a new
large journal cam? If I do that, I'll have to decide on what cam. A "full
race" design will probably make the little 1147 a real dog in the autocross
events I'd like to do (SCCA Nationals are nearby this fall). Any advice
would be welcome.
Joe Guinan
Fremont, NE
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