I?ve been waiting to thank all those that responded to my initial question
until the topic died down but in the interim I?ve bought a set of 89?s from
BPNW and I will set them up the same way I?ve always done it with 87?s, which
is the way Kas lined out in the comp manual. I was hoping to hear that the
silly MM was enough to avoid the need and gain a little more gasket surface on
the liner, but what worked on The 87?s will work on the 89?s. I don?t expect to
gain much as I expect they will be heavier than what I?ve been using, but they
cost a bunch less. In time I?ll know. So thanks for the answers and lively
discussion!
Bob
Sent from my iPhone
> On Sep 2, 2018, at 10:46 PM, Bill via Fot <fot at autox.team.net> wrote:
>
> It always puzzles me when people say that. Horsepower is torque times RPM
> (and a conversion factor). Torque is horsepower/RPM. So how can one count
> more than the other?
>
>> On Sep 2, 2018, at 4:13 PM, Mordy Dunst via Fot <fot at autox.team.net>
>> wrote:
>>
>> Its the torque that counts. So, I suspect the motor enhancements took the
>> benefit of the tractor stroke. If the motor is able to produce that
>> power at 6k rpm with shift at 6500.
>> I shift at @ 6200 - my motor produces max power @5800 on the dyno. I use a
>> kastner designed cam for which I have the masters.
>>
>>
>>
>> MDunst Headgasket.com 626.358.1616
>> Fax 626.628.3777
>> Triple R Munitions, Inc 626.201.9471
>> T FFL 6,7 SOT 2
>>
>> On Sunday, September 2, 2018, John Styduhar via Fot <fot at autox.team.net>
>> wrote:
>>
>> What kind of modifications were done to the engine to extract over 200 HP
>> from a tractor engine? Nitrous shot.
>>
>>
>>> On Sat, Sep 1, 2018 at 3:05 PM Thomas Boyd <tom at trenterprises.com> wrote:
>>> All of our FIA race cars are running legal 87mm engines.
>>> Just rolling roaded the latest SLR build at well north of 200bhp
>>>
>>> Thomas Boyd
>>> Director
>>> TR Enterprises
>>> 01623 793807 (ext 302)
>>> www.trenterprises.com
>>>
>>>
>>> On 1 Sep 2018, at 17:02, John Styduhar via Fot <fot at autox.team.net>
>>> wrote:
>>>
>>> If you really had serious compliance with most group's rules, I would guess
>>> half the TR cars would not pass muster. Let's have fun together.
>>>
>>>
>>>> On Sat, Sep 1, 2018 at 9:40 AM Terry Stetler via Fot <fot at
>>>> autox.team.net> wrote:
>>>> Indeed there are Glen.
>>>>
>>>>
>>>>
>>>> Sent from Mail for Windows 10
>>>>
>>>>
>>>>
>>>>
>>>> From: Fot <fot-bounces at autox.team.net> on behalf of fubog1 via Fot <fot
>>>> at autox.team.net>
>>>> Sent: Saturday, September 1, 2018 7:34:26 AM
>>>> To: rkramer56 at gmail.com
>>>> Cc: fot at autox.team.net
>>>> Subject: Re: [Fot] 89MM piston question
>>>>
>>>> everybody else seems to be using 89.
>>>> HaHa not everybody, rules say 87mm, there are still a few guys running
>>>> them (and winning)...
>>>> Glen
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: Bob Kramer via Fot <fot at autox.team.net>
>>>> To: van.mulders.marcel <van.mulders.marcel at telenet.be>
>>>> Cc: fot <fot at autox.team.net>
>>>> Sent: Fri, Aug 31, 2018 11:26 pm
>>>> Subject: Re: [Fot] 89MM piston question
>>>>
>>>> I've always used 87 MM due to the rules but everybody else seems to be
>>>> using 89. The procedures are the same so It'll be the same. I blew a head
>>>> gasket last time out, compression into the cooling system and blew off the
>>>> bottom hose. I guess it wasn't tight enough, and scuffed two pistons
>>>> before I could shut it down.
>>>>
>>>> Bob Kramer
>>>>
>>>> On Fri, Aug 31, 2018 at 12:43 PM, <van.mulders.marcel at telenet.be> wrote:
>>>> Bob,
>>>> It is definitely necessary to make that modification to the liners. The
>>>> relieve should correspond to the shape of the combustion chambers : about
>>>> 4 mm wide on a 89mm engine.
>>>> Marcel
>>>>
>>>> Van: "fot" <fot at autox.team.net>
>>>> Cc: "fot" <fot at autox.team.net>
>>>> Verzonden: Donderdag 30 augustus 2018 00:05:43
>>>> Onderwerp: [Fot] 89MM piston question
>>>>
>>>> Do the guys running the 89MM pistons and liners need to relieve the liners
>>>> to clear the intake valve, or does the extra MM make the difference?
>>>>
>>>> Bob Kramer
>>>>
>>>> On Tue,
>>>>
>>>> _______________________________________________
>>>> fot at autox.team.net
>>>>
>>>> http://www.fot-racing.com
>>>>
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>>>>
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>>>>
>>>> _______________________________________________
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>>>>
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>>>>
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>>>>
>>>
>>> _______________________________________________
>>> fot at autox.team.net
>>>
>>> http://www.fot-racing.com
>>>
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>>>
>> _______________________________________________
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>>
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>>
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>>
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>
> _______________________________________________
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>
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