[DeTomaso] "Nascar " engine balance question for a race Pantera
Steve Richardson
ritzson1955 at yahoo.com
Mon Apr 13 16:51:40 EDT 2015
Beware of the distance the dry sump pump drive pulley sticks out. It will run into the firewall. Steve
Sent from my iPhone
> On Apr 13, 2015, at 2:28 PM, Ken Green via DeTomaso <detomaso at poca.com> wrote:
>
> I have a friend who ran a Vintage NASCAR for a while, and who
> vintages races a real GT350. He said a dropped valve was a common
> failure, so make sure you put in new valve springs, even if the
> old springs still measure to have the spec pressure. He said he
> stayed at or below 7,000 RPM and his engines lasted for a while, and
> usually just needed freshening.
> 640 HP isn't much for a NASCAR motor, do you know what series it was
> run in? There might be some funky rules for the class it was in, you
> might want to make sure you don't limit yourself by what was in the
> engine. It seems odd, but I have read that NASCAR requires solid
> lifters. I'm not sure why. I would not assume that the parts were
> chosen to make the best engine.
> Do you have a list of parts that are in the engine?
> Do you have the engine roles for the class(es) you will run it?
> I suspect Dan Jones can offer some really good advice if he has enough
> information.
> Ken
> __________________________________________________________________
>
> From: Patrick HALS <patrickhals at gmail.com>
> To: Ken Green <kenn_green at yahoo.com>
> Cc: DeTomaso at poca.com; Guy & Denise Trigaux <gdt2860 at gmail.com>
> Sent: Monday, April 13, 2015 10:01 AM
> Subject: Re: [DeTomaso] "Nascar " engine balance question for a race
> Pantera
> Hi Ken,A
> Thanks for the very quick reply.A
> You are right... but I'd better have a dozen of coherent and
> identical
> US second advises than just trusting a reputable European engine
> builder who has built 25 Cleveland in his 40 years carreer. That's
> what
> a US builder does in one year or so... . I have experienced several
> disappointments in building even street engines in the EU, that I had
> all my race enginesA satisfactorilyA built in the US, even if,
> sometimes, there are some troubles. Life is like that. Nobody said
> building engines and putting them in a race car ( even a Pantera )
> are
> an exact science... Especially when it comes to about 100 HP per
> liter
> with a normally aspirated engine whose conception dates back from the
> 60's. Look at Formula One or World Endurance Championship ( WEC )
> A today, There, we are talking about the best engineers worldwide ,
> and
> practically a no limit budget . There is a persistant rumour saying
> that Mercedes Benz left a one billion euros cheque on the table for
> its
> F1 hybrid A engine.A
> Asking "obvious" questions to the Forum has always been THE solution
> for me when I was " desperate" : fast, experienced , detailed,
> accurate
> AND friendly ! I cannot thank my Forum friends enough ! The Forum
> saved
> " my life " overnight for Le Mans Classic 2008 with Candy, I will
> never
> forget that .
> Pat
> Patrick Hals
> +32.476.567.898
> 2015-04-13 17:59 GMT+02:00 Ken Green <[1][1]kenn_green at yahoo.com>:
> Hi Pat,
> If it's internally balanced, I think it should be a neutral balance
> (not the 20 oz balance)A flywheel.A A Cleveland and Windsor should be
> the same, but with a ZF, you need a 164 tooth flywheel.A A lot of
> flywheels have removable weights, so you just take off whatever
> weight
> is on it.A If you want it really good, have the flywheel and
> pressure
> plate balanced together toA zero.
> If the engine builder there does not already know this, he probably
> is
> not the right builder for your engine.
> Ken
> A
> __________________________________________________________________
> From: Patrick HALS <[2][2]patrickhals at gmail.com>
> To: [3][3]DeTomaso at poca.com
> Sent: Monday, April 13, 2015 8:34 AM
> Subject: [DeTomaso] "Nascar " engine balance question for a race
> Pantera
> A I have closed my relationship with my "fancy and moody " US engine
> A builder . Those who know him had warned me about him a long time
> ago
> A and I must now admit that they were partially right ... After the
> good
> A part, I now take the worse part, and the "fancy" bill, of course
> :>((
> A This " gentleman" sent me back my unfinished race engine at my
> request.
> A It A "only " needs flywheel, dry sump system and clutch.
> A Here is what he writes to me : "As far as balancing the motor, it
> is
> an
> A internally balanced motor.AA If you have further questions
> regarding
> A how to set up this motor or finish, please refer to the mechanics
> your
> A are using locally as I have stated previously, our professional
> A relationship is over."
> A US engine builders are so used in building Ford V8 engines that I
> A always had my race engines built in the US vs.EU, despite what I
> was
> A advised over here. I shall have this engine finished over here,
> but
> A would like to be sure of what a local ( competent ) builder will
> tell
> A me to finish this (expensive) engine will be the right solution.
> What
> A do I need in terms of flywheel? It is a Windsor based engine, NOT
> a
> A Cleveland ( see pics ) . When I bought it ( broken ) three years
> ago,
> A it was supposedly delivering 640 HP.... But it has now been fully
> A redone, while keeping the " good" pieces
> A Many thanks for your advises.
> A Pat
> A Patrick Hals
> A +32.476.567.898
> _______________________________________________
> Detomaso Forum Managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> [4][4]DeTomaso at poca.com
> [5][5]http://poca.com/mailman/listinfo/detomaso_poca.com
> To manage your subscription (change email address, unsubscribe, etc.)
> use the links above.
> References
> 1. mailto:[6]kenn_green at yahoo.com
> 2. mailto:[7]patrickhals at gmail.com
> 3. mailto:[8]DeTomaso at poca.com
> 4. mailto:[9]DeTomaso at poca.com
> 5. [10]http://poca.com/mailman/listinfo/detomaso_poca.com
> _______________________________________________
> Detomaso Forum Managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> [11]DeTomaso at poca.com
> [12]http://poca.com/mailman/listinfo/detomaso_poca.com
> To manage your subscription (change email address, unsubscribe, etc.)
> use the links above.
>
> References
>
> 1. mailto:kenn_green at yahoo.com
> 2. mailto:patrickhals at gmail.com
> 3. mailto:DeTomaso at poca.com
> 4. mailto:DeTomaso at poca.com
> 5. http://poca.com/mailman/listinfo/detomaso_poca.com
> 6. mailto:kenn_green at yahoo.com
> 7. mailto:patrickhals at gmail.com
> 8. mailto:DeTomaso at poca.com
> 9. mailto:DeTomaso at poca.com
> 10. http://poca.com/mailman/listinfo/detomaso_poca.com
> 11. mailto:DeTomaso at poca.com
> 12. http://poca.com/mailman/listinfo/detomaso_poca.com
> _______________________________________________
>
> Detomaso Forum Managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> DeTomaso at poca.com
> http://poca.com/mailman/listinfo/detomaso_poca.com
>
> To manage your subscription (change email address, unsubscribe, etc.) use the links above.
More information about the DeTomaso
mailing list