- 1. TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 14:27:54 +0200
- Two questions really: What would be the recommended way to get TR250 horsepower up to around 150, while staying with a carb setup ? And, does anyone have experience with triple (or more) carb setup,
- /html/triumphs/2003-10/msg00578.html (7,122 bytes)
- 2. Re: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 11:02:10 -0400
- On my TR250, I am going with: 9.5:1 Compression ratio. Later wide port head (probably makes no difference) Integral Cams Stage II cam 274 duration .425 valve lift. www.integralcams.com Later TR6 "swe
- /html/triumphs/2003-10/msg00588.html (8,981 bytes)
- 3. Re: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 11:28:22 EDT
- Just a point of clarification on the 'later' 6 head and the 'long runner' intake manifold. The long runner intake from later TR6s will not work with the TR250 head. Larry M CD5182L
- /html/triumphs/2003-10/msg00589.html (7,234 bytes)
- 4. RE: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 08:57:33 -0700
- Hotter cam, more compression (premium gasoline), 3-carb intake (my preference would be for 3 SU HS6, but I've never done it), and a good, tubular exhaust. I'd guess the tri-Y setup would work best o
- /html/triumphs/2003-10/msg00591.html (9,009 bytes)
- 5. Re: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 16:22:20 -0400
- Message text written by INTERNET:LaJoMor@aol.com < Not to be anal about it but it will work but there is a port mis-alignment that will probably rob more horsepower than you gain with the longer runn
- /html/triumphs/2003-10/msg00605.html (7,883 bytes)
- 6. RE: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 16:23:54 -0400
- Message text written by "Randall Young" but again I've never done it.< This particular part comes with a hearty recommendation from John Mac. I think I see one on my horizon. Dave
- /html/triumphs/2003-10/msg00606.html (7,649 bytes)
- 7. RE: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 16:32:22 -0400
- Message text written by "Randall Young" TR5), so should be no problem. I'd want to double-check the diff mounts tho, maybe even drop the diff to inspect, since it seems to be hard to know when they'r
- /html/triumphs/2003-10/msg00607.html (8,572 bytes)
- 8. Re: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 18:20:05 -0400
- I can vouch for this. I blew out the pinion gear on my '72 last summer, with 75k on the clock. Yeah, it happened when I had the hammer down a little. (Well, maybe a lot.) Don't reproduce this experim
- /html/triumphs/2003-10/msg00617.html (9,539 bytes)
- 9. RE: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 15:51:07 -0700
- First, let me say that I always was under the impression that the TR6 Diff was much stronger (by necessity) than the Spitfire or GT6 diff. I can say from experience that my diff (3.63 GT6 with Quaife
- /html/triumphs/2003-10/msg00619.html (10,296 bytes)
- 10. Re: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 19:09:47 -0400
- Message text written by "M. Secrest" with 75k on the clock. < Mine gave me fair warning, I just didn't recognize it. It made an ominous periodic noise that finally when BANG. I was able to drive the
- /html/triumphs/2003-10/msg00621.html (8,256 bytes)
- 11. Re: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 19:09:47 -0400
- Message text written by "M. Secrest" with 75k on the clock. < Mine gave me fair warning, I just didn't recognize it. It made an ominous periodic noise that finally when BANG. I was able to drive the
- /html/triumphs/2003-10/msg00622.html (8,253 bytes)
- 12. RE: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 19:19:35 -0400
- Message text written by "Joe Curry" < Boy, wouldn't that be a convenient excuse. But, alas, no, it is the pinion gear that fails. Quaife or no Quaife, that gear is still there. Dave
- /html/triumphs/2003-10/msg00625.html (8,092 bytes)
- 13. RE: TR250 Power (score: 1)
- Author: Unknown
- Date: Fri, 24 Oct 2003 16:46:54 -0700
- I would expect the TR6 pinion shaft to be at least as large as the GT6 one. Is that NOT the case? Joe Message text written by "Joe Curry" < Boy, wouldn't that be a convenient excuse. But, alas, no, i
- /html/triumphs/2003-10/msg00627.html (8,321 bytes)
- 14. TR250 Power (score: 1)
- Author: Unknown
- Date: Sat, 25 Oct 2003 13:21:38 +0200
- Thanks to everyone for all the helpful replies. Looking at them, I just realised that starting with me, no-one's mentioned supercharging. Any ideas/experience ? Pete Logan
- /html/triumphs/2003-10/msg00635.html (7,505 bytes)
- 15. Re: TR250 Power (score: 1)
- Author: Unknown
- Date: Sat, 25 Oct 2003 10:10:16 -0400
- Mine too. It was making a very strange fluttering noise that I tried in vain to isolate to the joints or bearings, but couldn't. I finally decided to live w/it until all hell broke loose (which it di
- /html/triumphs/2003-10/msg00640.html (8,522 bytes)
- 16. RE: TR250 Power (score: 1)
- Author: Unknown
- Date: Sat, 25 Oct 2003 10:25:51 -0400
- Message text written by "Joe Curry" one. Is that NOT the case? < I have never seen a GT6 pinion so I don't know. I would expect it to be as large or larger. I don't think it is undersized, I suspect
- /html/triumphs/2003-10/msg00641.html (8,068 bytes)
- 17. Re: TR250 Power (score: 1)
- Author: Unknown
- Date: Sat, 25 Oct 2003 11:22:09 -0700 (PDT)
- A comment on the different Manifolds: I drove around for more than a year with an early intake manifold (and weber downdrafts) mounted on a later head. (Unbeknownst to me) The manifold just BARELY co
- /html/triumphs/2003-10/msg00657.html (8,307 bytes)
- 18. Re: TR250 Power (score: 1)
- Author: Unknown
- Date: Sat, 25 Oct 2003 20:07:59 -0400
- Message text written by Scott Tilton I drove around for more than a year with an early intake manifold (and weber downdrafts) mounted on a later head. (Unbeknownst to me) < What a coincidence. I put
- /html/triumphs/2003-10/msg00668.html (7,478 bytes)
- 19. RE: TR250 Power (score: 1)
- Author: Unknown
- Date: Sat, 25 Oct 2003 18:11:54 -0700
- Just for the record a GT6 diff is NO different than a MK 4 Spitfire (except in ratio) in fact all GT6, and 71 and later small chassis cars use basically the same diff as well as the early TR7 76 on
- /html/triumphs/2003-10/msg00674.html (7,913 bytes)
- 20. RE: TR250 Power (score: 1)
- Author: Unknown
- Date: Sun, 26 Oct 2003 21:38:49 -0500
- Message text written by "Joe Curry" GT6 diff. Today I blew mine. Stripped all the teeth off the pinion gear and took several off the crown gear. < Aaak! I'm a jinx! Sorry I brought it up! I'll ask ar
- /html/triumphs/2003-10/msg00718.html (7,471 bytes)
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