Supercharger?
Posted By : Nigel Gibbins, 10-Jul-2003, 03:36pm
Hi Stephen,
There was a supercharger made specifically for the herald - it is referred to as the 'Shorrocks' (I think), they never caught on as far I'm aware and finding one to fit is like find the proverbial needle in the proverbial haystack.
On the other hand the 13/60 engine is the engine of choice for racing - so you have a good starting point anyway. You can apply any of the spitfire mods to your herald. Some may require a little 'fitting' but I can't see any reason why youcan't easily build your herald t do 0-60 in 9 secs and even quicker if your will ing to get into the engine internals.
If you're going to Stafford on the weekend why not try to find me and we can chat about it. Alternatively I know acouple of racecars will be there - (Karls and Barrys) and you can always talk to them instead.
Also, there's a race at Mallory on Sunday and the grapevine is telling me we have 12-14 TSSC racers in a field of 28 triumphs! I'm really looking forward to it
NiG
http://www.niginthecar.net
There was a supercharger made specifically for the herald - it is referred to as the 'Shorrocks' (I think), they never caught on as far I'm aware and finding one to fit is like find the proverbial needle in the proverbial haystack.
On the other hand the 13/60 engine is the engine of choice for racing - so you have a good starting point anyway. You can apply any of the spitfire mods to your herald. Some may require a little 'fitting' but I can't see any reason why youcan't easily build your herald t do 0-60 in 9 secs and even quicker if your will ing to get into the engine internals.
If you're going to Stafford on the weekend why not try to find me and we can chat about it. Alternatively I know acouple of racecars will be there - (Karls and Barrys) and you can always talk to them instead.
Also, there's a race at Mallory on Sunday and the grapevine is telling me we have 12-14 TSSC racers in a field of 28 triumphs! I'm really looking forward to it
NiG
http://www.niginthecar.net
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Supercharger?
Posted By : Stephen Longden, 11-Jul-2003, 10:18am
9 secs is quick for a Herald!
Can't make Stafford this year - nightmare! I am best man at a wedding. Thought seriously about refusing the offer...
How reliable is a hot spitfire engine? What sort of mpg should I expect?
Are we talking big carbs, hot cam, fancy manifolds, high compression head?
I like the supercharger idea as a simple bolt on. But if they are very rare and designed for the 1200, perhaps it is not the right route.-
Supercharger?
Posted By : Nigel Gibbins, 11-Jul-2003, 03:00pm
The 'Luke warm' spitfire/herald engine is perfectly reliable - just keep up with the servicing and you will be fine. I'd recomend oil changes every 3000 miles.
The 'Bolt ons' required are basically HS4 (twin), Tubular manifold (4-2-1), Fast Road Cam, Free Flow filters with cold air ducting.
The 'next steps' would be skimmed and ported head with enlarged valves, bench flowed carbs (SUs) - or weber/s. Then electric fuel pump, water pump, fan. This can get you below 8 seconds, but it would be wise at this stage to atart uprating the drive train to cope with this - e.g. Differential flanges (big), propshafts flanges (big), four synchro gearbox, etc.
To go further you'll need engine lightening, matched manifolds, Higher spec cam.
How deep are your pockets?
NiG
http://www.niginthecar.net-
Supercharger?
Posted By : Jason Chinn, 17-Jul-2003, 10:06pm
Whilst the Shorrock kit is rare you can still get parts, there's a guy in Scotland trading in them. Bits come up on ebay but they go for silly money - the last full kit I saw went for &163;900+ and there was no guarantee it worked or was indeed complete. Bare blowers come up and can be had for &163;4-500 but again that's no guarantee you'll have something useable. A brand new Jag v8 one recently went for &163;250, I was almost tempted. What you'll find is that there are only a few manufacturers so when someone says "It's off an Aston Martin" you'll find that actually it's just a generic Marshall blower that could be fitted to a truck.
How much fiddling are you prepared to do? Take a look here, http://triumphs.50megs.com/ and click on "Pipe Dreams" I was specifically looking for info about 6 cylinder supercharging - those pages are the result of some web trawling and talking to people on my part. The site to check out first about blowing a Herald is here http://www.bcsc.co.uk they have tried selling on ebay recently but their starting prices are way too high to get people interested. Although a Herald kit is not listed the other kits retail at around the &163;1500 mark. That's not bad compared to the costs of race parts but horsepower is never cheap!
There are some useful explanatory documents as well as a catalogue and price list on the site. It's worth the hassle of free registration (don't know why you have to do this)
Let us know how you get on.
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Supercharger?
Posted By : Craig Gingell, 10-Jul-2003, 06:10pm
Hi Stephen,
I have had a supercharger fitted on my Herald 1200. The Shorrock Supercharger came as a kit for fitting to the 1147cc and 948cc engines. You can fit it to the 1296cc and 1493cc 4 cylinder engines, but you will have to fabricate an inlet manifold.
There's some further information on a really old website of mine at -
http://www.geocities.com/Athens/Parthenon/3874/tri...
Let me know if you would like any further details.
Rgds
Craig
I have had a supercharger fitted on my Herald 1200. The Shorrock Supercharger came as a kit for fitting to the 1147cc and 948cc engines. You can fit it to the 1296cc and 1493cc 4 cylinder engines, but you will have to fabricate an inlet manifold.
There's some further information on a really old website of mine at -
http://www.geocities.com/Athens/Parthenon/3874/tri...
Let me know if you would like any further details.
Rgds
Craig