There's not much useful past 6K anyway, other than just not needing to
lift in a long straight. The TR head just won't breathe that fast. I
use 6K as a shift point and gear for 6500 as the upper limit based on
the longest straights I run. that's a 3.9 rear end for the west coast
tracks, but I ran a 3.7 last year to cover tracks I wasn't familiar
with. I'm sure a steel crank motor will rev higher with reasonable
reliability, but it won't do much. I just think feathering the
throttle near the end of a straight is hard on things.
My cheater TR3 was 92mm, and the motor was hyper-aggressive in every
way except it had a nitrided cast iron crank with radiuses welded and
ground in all the stress risers--not steel. The radiator is about
twice the size of a TR3. There's no way a TR3 radiator would have
managed that motor, even with a different core. Tried it, didn't like
it.
Peyote has a much milder motor--probably 130HP, was 89 MM, now 87 MM,
steel crank, etc.. The radiator is from some odd LBC but its about 1.5
times the area of a TR radiator. If I have cooling problems I know
something is wrong. Sometimes blowby, sometimes advance, sometimes an
air leak or wrong jetting. I tend to jet my carburetors aggressively
to the lean side. Car guys that look at my plugs think my motor is
about to blow. Old motorcycle habits. I like a little shade of tan at
the base of the insulator after a clean plug chop with new plugs. On a
dyno the same jets show dead white but don't blister or toast the
electrodes and don't burn anything.
I'm very fond of having a lot of cooling margin. I like to be able to
adjust the cooling with a thermostat or an orifice rather than hope
the car doesn't overheat.
On Jun 9, 2008, at 12:53 PM, fubog1@aol.com wrote:
> OK Bill I'll check the next time I look in a mirror, but that ain't
> very often!
>
> Seriously, Mikes normal rev limit is around 6000 rpm, with the
> standard do-not-exceed 109% rating applied.
> Now, the un-named driver of a certain WHITE TR-3 is another story.
> He has to have the recall tach, ha ha!
> Glen
>
> -----Original Message-----
> From: BillDentin@aol.com
> To: Fubog1@aol.com; Billb@bnj.com; grandwazoo@earthlink.net
> Cc: fot@autox.team.net; KENMUN@aol.com
> Sent: Mon, 9 Jun 2008 3:32 pm
> Subject: Re: [Fot] cooling down a tr3
>
> In a message dated 06/09/2008 1:59:04 PM Central Daylight Time,
> fubog1@aol.com writes:
>
>
>> yeah I reckon Mikes car doesn't make enough horsepower to run hot.
>> It's 87mm & he doesn't run it much over 6000 rpm.
>>
>> I told him once that he had around 200 horsepower & the thing should
> do
>> AT LEAST 160, so he had to learn how to drive it fast...
>>
>
> Glen...
>
> I got $20 says your nose is now longer than it used to be.
>
> Bill Dentinger
>
>
>
> **************
> Get trade secrets for amazing burgers. Watch "Cooking with
> Tyler Florence" on AOL Food.
> (http://food.aol.com/tyler-florence?video=4?&;
> NCID=aolfod00030000000002)
> _______________________________________________
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>
Bill Babcock
Babcock & Jenkins
Billb@bnj.com
503.936.7660
www.bnj.com
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