[Fot] 89MM piston question

Bob Kramer rkramer56 at gmail.com
Mon Sep 3 08:38:23 MDT 2018 

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
>>>> 
>>>> Donate: http://www.team.net/donate.html
>>>> Archive: http://www.team.net/pipermail/fot
>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/van.mulders.marcel@telenet.be
>>>> 
>>>> _______________________________________________
>>>> fot at autox.team.net
>>>> 
>>>> http://www.fot-racing.com
>>>> 
>>>> Donate: http://www.team.net/donate.html
>>>> Archive: http://www.team.net/pipermail/fot
>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/fubog1@aol.com
>>>> 
>>>> 
>>>> _______________________________________________
>>>> fot at autox.team.net
>>>> 
>>>> http://www.fot-racing.com
>>>> 
>>>> Donate: http://www.team.net/donate.html
>>>> Archive: http://www.team.net/pipermail/fot
>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/johnstydo@gmail.com
>>>> 
>>>> 
>>> 
>>> _______________________________________________
>>> fot at autox.team.net
>>> 
>>> http://www.fot-racing.com
>>> 
>>> Donate: http://www.team.net/donate.html
>>> Archive: http://www.team.net/pipermail/fot
>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/tom@trenterprises.com
>>> 
>>> 
>> _______________________________________________
>> fot at autox.team.net
>> 
>> http://www.fot-racing.com
>> 
>> Donate: http://www.team.net/donate.html
>> Archive: http://www.team.net/pipermail/fot
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/gasket.works@gte.net
>> 
>> 
>> _______________________________________________
>> fot at autox.team.net
>> 
>> http://www.fot-racing.com
>> 
>> Donate: http://www.team.net/donate.html
>> Archive: http://www.team.net/pipermail/fot
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/bill@ponostyle.com
>> 
>> 
> 
> _______________________________________________
> fot at autox.team.net
> 
> http://www.fot-racing.com
> 
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/fot
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/rkramer56@gmail.com
> 
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/fot/attachments/20180903/078c6355/attachment-0001.htm>

More information about the Fot mailing list