MG-Cars.info

Welcome to our Site for MG, Triumph and Austin-Healey Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG TD TF 1500 - Wish I Had the Guts

Watch the tach and speedometer...
https://www.youtube.com/watch?v=iQGeYdYtIik
Gene Gillam

Holy Sh*t,,,,,
TRM Maine

What he said!
Kevin McLemore

I wouldn't have any problem....as long as it wasn't my car... :-)
MG LaVerne

Yikes!!!!! I hope the lower end was well put together.
-David
D. Sander

LaVerne, I know you run the Hornet at speed. What does your tach show when you get to that big 1 number? just curious.
TRM Maine

That's a great endorsement for the designers of the XPAG engine. 10,000 PRM! Now that IS scary. Cheers
Peter TD 5801
P Hehir

I don't recall Tom. I may have to go out for a run and see. :-)

About 3800 rpm at 77 mph according to this. 5500 rpm doesn't scare me a bit.

http://www.youtube.com/watch?v=9b3n2b7pDpk
MG LaVerne

It is not10,000rpm but about 6500. Tach is on the left. Regularly run my xpag race motor at 7000 but thats about the limit. Rev limiter set at 7200.
F Filangeri

Thanks FF. Its been 45 years since I've driven mine. So it's only 100 MPH.. No worries. Cheers
Peter TD 5801
P Hehir

The mechanic of an workshop told me, the XPAG is not able to be run on high rpm for a longer time and will be damaged. Is that true?
1

It is a TF,no worries at all!

Cheers
Rob Grantham
TF3719("Aramis"),TF9177("Athos").
R GRANTHAM

Does it mean you can drive a TF with full throttle for e.g. one hour? What's about the TD?
1

It means all is possible with big bank accounts. The original crankshafts likely had a safe operating range of 6000 rpm when new. But that was NEW and for limited bursts. Any engine will succumb to extreme wear and eventual failure at high RPMs. Metallurgy has improved immensely in the last 30 years which has allowed a better quality of crankshaft, connecting rods, pistons, camshafts, cylinder heads, wild roller cams etc. all of which help to increase the reliability, characteristics and performance of the engine. I'm sure Steve Bakers dyno run was not a standard XPAG with a blower stuffed on it for good measure. There are a great deal of nitty details that improved its performance. The dyno numbers would have told a
better story. The short story is, if you have a " fresh" stock engine with an old crank that has been mag'ed best to keep the revs below 5500 for longevity sake. A warmed over engine certainly can do more but wear will still be a factor as the revs increase. I know one racer on the east coast that claims to run his car at 8500 rpm all day long with no issue. But it is a race engine that has had substantial prep and modern technology parts thrown in the mix. I personally would like to see new nodular iron blocks or even an alloy block fitted with wet sleeves and five mains. Also a support to carry the crank snout to minimize crank shaft breakage. HP costs money and so do broken parts. Decide what your passion is and build to suit ...

These cars were built to be enjoyed spiritedly. Find some challenging canyon road and have fun

Bill Chasser Jr.
TD4834
W. A. Chasser Jr

Hi Gene,

Trying to find the video but youtube says "not available" when I type in ?v=iQGeYdYtlik Have I got it right? I have tried several times. What type of car is the video taken in?

Bob Schapel
R L Schapel

Bob I just copied & pasted the info above & up it came. It's a TD. Cheers
Peter TD 5801
P Hehir

Thanks Peter,

It finally worked! Modern technology often mistreats me for no obvious reason. An interesting video. Engine sounds so sweet. Yes, the XPAG is a great engine!

Bob Schapel
R L Schapel

Nice job Peter. No vibration and a beautiful sound.
Bruce TD4139 Cunha

This thread was discussed between 09/09/2015 and 12/09/2015

MG TD TF 1500 index

This thread is from the archives. Join the live MG TD TF 1500 BBS now