Ken, My engine is similar to Dave's ( super lightweight (stock stroke) rotating assy, aluminum FW, large solid roller etc..) and uses a Holley carb and has does not "buck and snort" either. I think it is more of a tuning issue than the aluminum flywheel. Ron On 12/24/2024 11:37 AM EST Ken Green via DeTomaso <[1]detomaso@server.detomasolist.com> wrote: I wonder if EFI makes solves the "buck and snort"? I suspect big carbs and big cams don't meter or distribute fuel real well at low RPM, especially with a single plane intake manifold. On Tuesday, December 24, 2024 at 08:27:47 AM PST, <[2]dnunn@telus.net> wrote: Mike, When I built the engine for 5165 (which now resides in the Jacksonville Sports Car Museum - [3]https://www.jaxsportscarmuseum.com/gallery-1), I wanted it to rev as quickly as possible. Accordingly, I made sure the entire reciprocating assembly was as light at possible. I used a lightweight crank damper, lightened pistons and rods, gun-drilled crank throws, 157 tooth aluminum flywheel and a diaphragm pressure plate with an aluminum friction ring. The engine was internally balanced and had a solid roller cam, T&D shaft rockers, etc. It revved so fast it was difficult to keep off the rev limiter. I had none of the "buck and snort" you mentioned, when driving at low speed. I could easily drive at 2 mph in a parade or in stop and go traffic. Driving on and off a trailer was easy too. In fact, at parking lot speeds, it wasn't much different than when it was stock. This leads me to believe that the "buck and snort" you're describing is a tuning issue that is masked by a heavy flywheel. My 2 cents! Dave ----------------------------------------------------------------------- ----- -------------------------------------- Dan, I was convinced to go for a Fidanza aluminum flywheel, and I think it's too light for the street. Yes, it makes the engine rev faster which is entertaining. But it, coupled with a fairly aggressive cam, makes the car buck and snort when trying to inch along at very low speed. I have to use the clutch and rev the engine far more than one might expect-almost like a smaller-displacement Ferrari. Lori's engine has a stock flywheel and has pleasingly truck-like characteristics at walking pace. An intermediate-weight flywheel would probably be the best bet. Mike Sent from my iPad On Dec 19, 2024, at 18:53, Julian Kift <[4]julian_kift@hotmail.com> wrote: 164 tooth and personally I'd go with a billet steel flywheel for a
street performance engine
Julian
__________________________________________________________________
From: Dan <[5]dan@excaliburre.com>
Sent: Thursday, December 19, 2024 3:44 PM
To: [6]detomaso@server.detomasolist.com <[7]detomaso@server.detomasolist.com>
Subject: [DeTomaso] Flywheel material and tooth count?
Does anyone know what tooth count for the flywheel? And what is better
for a
performance street Pantera, steel or aluminum?
Thanks,
Dan
_______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- [8]detomaso@server.detomasolist.com To unsubscribe send an email to [9]detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. -----Original Message----- From: [10]detomaso-request@server.detomasolist.com <[11]detomaso-request@server.detomasolist.com> Sent: Friday, December 20, 2024 9:01 PM To: [12]detomaso@server.detomasolist.com Subject: DeTomaso Digest, Vol 246, Issue 15 Send DeTomaso mailing list submissions to [13]detomaso@server.detomasolist.com To subscribe or unsubscribe via email, send a message with subject or body 'help' to [14]detomaso-request@server.detomasolist.com You can reach the person managing the list at [15]detomaso-owner@server.detomasolist.com When replying, please edit your Subject line so it is more specific than "Re: Contents of DeTomaso digest..." _______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- [16]detomaso@server.detomasolist.com To unsubscribe send an email to [17]detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. I wonder if EFI makes solves the "buck and snort"? I suspect big carbs and big cams don't meter or distribute fuel real well at low RPM, especially with a single plane intake manifold. On Tuesday, December 24, 2024 at 08:27:47 AM PST, <[18]dnunn@telus.net> wrote: Mike, When I built the engine for 5165 (which now resides in the Jacksonville Sports Car Museum - [19]https://www.jaxsportscarmuseum.com/gallery-1), I wanted it to rev as quickly as possible. Accordingly, I made sure the entire reciprocating assembly was as light at possible. I used a lightweight crank damper, lightened pistons and rods, gun-drilled crank throws, 157 tooth aluminum flywheel and a diaphragm pressure plate with an aluminum friction ring. The engine was internally balanced and had a solid roller cam, T&D shaft rockers, etc. It revved so fast it was difficult to keep off the rev limiter. I had none of the "buck and snort" you mentioned, when driving at low speed. I could easily drive at 2 mph in a parade or in stop and go traffic. Driving on and off a trailer was easy too. In fact, at parking lot speeds, it wasn't much different than when it was stock. This leads me to believe that the "buck and snort" you're describing is a tuning issue that is masked by a heavy flywheel. My 2 cents! Dave ----------------------------------------------------------------------- ----- -------------------------------------- Dan, I was convinced to go for a Fidanza aluminum flywheel, and I think it's too light for the street. Yes, it makes the engine rev faster which is entertaining. But it, coupled with a fairly aggressive cam, makes the car buck and snort when trying to inch along at very low speed. I have to use the clutch and rev the engine far more than one might expect-almost like a smaller-displacement Ferrari. Lori's engine has a stock flywheel and has pleasingly truck-like characteristics at walking pace. An intermediate-weight flywheel would probably be the best bet. Mike Sent from my iPad
On Dec 19, 2024, at 18:53, Julian Kift <[1][20]julian_kift@hotmail.com>
wrote:
164 tooth and personally I'd go with a billet steel flywheel for a
street performance engine
Julian
__________________________________________________________________
From: Dan <[2][21]dan@excaliburre.com>
Sent: Thursday, December 19, 2024 3:44 PM
To: [3][22]detomaso@server.detomasolist.com
<[4][23]detomaso@server.detomasolist.com>
Subject: [DeTomaso] Flywheel material and tooth count?
Does anyone know what tooth count for the flywheel? And what is
better
for a
performance street Pantera, steel or aluminum?
Thanks,
Dan
_______________________________________________
Detomaso Email List is not managed by POCA Posted emails must not
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Members who post to this list grant license to the list to forward
any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. -----Original Message----- From: [7][26]detomaso-request@server.detomasolist.com <[8][27]detomaso-request@server.detomasolist.com> Sent: Friday, December 20, 2024 9:01 PM To: [9][28]detomaso@server.detomasolist.com Subject: DeTomaso Digest, Vol 246, Issue 15 Send DeTomaso mailing list submissions to [10][29]detomaso@server.detomasolist.com To subscribe or unsubscribe via email, send a message with subject or body 'help' to [11][30]detomaso-request@server.detomasolist.com You can reach the person managing the list at [12][31]detomaso-owner@server.detomasolist.com When replying, please edit your Subject line so it is more specific than "Re: Contents of DeTomaso digest..." _______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- [13][32]detomaso@server.detomasolist.com To unsubscribe send an email to [14][33]detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. References 1. mailto:[34]julian_kift@hotmail.com 2. mailto:[35]dan@excaliburre.com 3. mailto:[36]detomaso@server.detomasolist.com 4. mailto:[37]detomaso@server.detomasolist.com 5. mailto:[38]detomaso@server.detomasolist.com 6. mailto:[39]detomaso-leave@server.detomasolist.com 7. mailto:[40]detomaso-request@server.detomasolist.com 8. mailto:[41]detomaso-request@server.detomasolist.com 9. mailto:[42]detomaso@server.detomasolist.com 10. mailto:[43]detomaso@server.detomasolist.com 11. mailto:[44]detomaso-request@server.detomasolist.com 12. mailto:[45]detomaso-owner@server.detomasolist.com 13. mailto:[46]detomaso@server.detomasolist.com 14. mailto:[47]detomaso-leave@server.detomasolist.com _______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- [48]detomaso@server.detomasolist.com To unsubscribe send an email to [49]detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. References 1. mailto:detomaso@server.detomasolist.com 2. mailto:dnunn@telus.net 3. https://www.jaxsportscarmuseum.com/gallery-1 4. mailto:julian_kift@hotmail.com 5. mailto:dan@excaliburre.com 6. mailto:detomaso@server.detomasolist.com 7. mailto:detomaso@server.detomasolist.com 8. mailto:detomaso@server.detomasolist.com 9. mailto:detomaso-leave@server.detomasolist.com 10. mailto:detomaso-request@server.detomasolist.com 11. mailto:detomaso-request@server.detomasolist.com 12. mailto:detomaso@server.detomasolist.com 13. mailto:detomaso@server.detomasolist.com 14. mailto:detomaso-request@server.detomasolist.com 15. mailto:detomaso-owner@server.detomasolist.com 16. mailto:detomaso@server.detomasolist.com 17. mailto:detomaso-leave@server.detomasolist.com 18. mailto:dnunn@telus.net 19. https://www.jaxsportscarmuseum.com/gallery-1 20. mailto:julian_kift@hotmail.com 21. mailto:dan@excaliburre.com 22. mailto:detomaso@server.detomasolist.com 23. mailto:detomaso@server.detomasolist.com 24. mailto:detomaso@server.detomasolist.com 25. mailto:detomaso-leave@server.detomasolist.com 26. mailto:detomaso-request@server.detomasolist.com 27. mailto:detomaso-request@server.detomasolist.com 28. mailto:detomaso@server.detomasolist.com 29. mailto:detomaso@server.detomasolist.com 30. mailto:detomaso-request@server.detomasolist.com 31. mailto:detomaso-owner@server.detomasolist.com 32. mailto:detomaso@server.detomasolist.com 33. mailto:detomaso-leave@server.detomasolist.com 34. mailto:julian_kift@hotmail.com 35. mailto:dan@excaliburre.com 36. mailto:detomaso@server.detomasolist.com 37. mailto:detomaso@server.detomasolist.com 38. mailto:detomaso@server.detomasolist.com 39. mailto:detomaso-leave@server.detomasolist.com 40. mailto:detomaso-request@server.detomasolist.com 41. mailto:detomaso-request@server.detomasolist.com 42. mailto:detomaso@server.detomasolist.com 43. mailto:detomaso@server.detomasolist.com 44. mailto:detomaso-request@server.detomasolist.com 45. mailto:detomaso-owner@server.detomasolist.com 46. mailto:detomaso@server.detomasolist.com 47. mailto:detomaso-leave@server.detomasolist.com 48. mailto:detomaso@server.detomasolist.com 49. mailto:detomaso-leave@server.detomasolist.com