MK-I MK-II MK-III MK-IV GULF MIRAGE J-CAR LOLA
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Why not start with your first post today and become an active part of GT40s.com now! And, if you find you enjoy GT40s.com think about becoming a Forum Supporter. | | GT40 Tech - Engines/Induction/Exhaust Motors and engine related - right here! |
06-12-06, 02:04 PM
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#1 (permalink)
| | Frank Beuker Silver Supporter 
Join Date: Nov 2005 Location: the netherlands GT40: kva
Posts: 458
Rep Power: 8  | alternator/waterpump does anyone know this combi and what are the thoughts about it?
it's from racemate
Frank |
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06-12-06, 03:05 PM
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#2 (permalink)
| | Ron Earp Retiree 
Join Date: Sep 2001 Location: NC, USA
Posts: 4,009
Rep Power: 58  | I really like it and it was discussed in the RCR section, someone has one on their car. But, then I was thinking about alternator failure, which I've seen happen, and I'd hate to ruin a $XXX track day for want of a $50 alternator I can get anywhere. |
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06-12-06, 03:21 PM
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#3 (permalink)
| | Keith1 10 tenths 
Join Date: Mar 2004 Location: England GT40: Nein
Posts: 1,988
Rep Power: 26   | Does everyone mostly run alternators on race days? I gave up using them and inevitably took them off before an event as they proved quite unreliable when highly stressed (like 8,000 rpm). I used high power lightweight gel batteries which were plenty for a 25 mile race, even running with diff cooling pumps, and I always fired up using a trolley battery to save the on-board. I do like the look of that combi though...
__________________ Yours Sincerely, Keith Hardy |
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06-12-06, 03:30 PM
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#4 (permalink)
| | Ron Earp Retiree 
Join Date: Sep 2001 Location: NC, USA
Posts: 4,009
Rep Power: 58  | Our races are too long for that. One course we run is 4.2 miles around and for over 30 minutes. Plus, we run a lot of mini enduros at 1.5 hours and plan to run the Lola in the 13 hour enduro. Have to have a lot of batteries for that!!!!!! |
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06-12-06, 03:53 PM
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#5 (permalink)
| | Sandy Gulf GT40 
Join Date: Jan 2003 Location: Los Angeles, CA GT40: RCR GT40 Gulf
Posts: 1,161
Rep Power: 18  | I have several of these on my cars. They are bullet proof. No Brushes, really simple regulator configuration (might just be a rectifier) and an excellent waterpump, with pulley ratios of your choice. They are essentially custom made for your application. John Barrett is the fellow that does them and he will make them with your choice of racing waterpump and in a variety of pulley configurations. I have on on my SBF in the mustang with 2 Vbelts, and on the RCR-40 with a serpentine and 60amp, and on a Big Block Chevy. They are generally 30 amp units, but you can get the double wide that is 60amp. Have run the mustang for several years on one without a problem.
Downside, cost. It ends up being a more then a race alternator, waterpump and pulley but you get rid of all the bracketing and makes for a nice package.
I can't say enough good things about it, but give John a call he is an old time racer and will chat your ear off!
Sandy
__________________ RCR GT40 #11 348" Alloy SBF, 930 Box, Gulf 1075 Trim Now in the Garage, still under construction... www.gtsparkplugs.com Links to the cars |
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06-12-06, 04:04 PM
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#6 (permalink)
| | Ron Earp Retiree 
Join Date: Sep 2001 Location: NC, USA
Posts: 4,009
Rep Power: 58  | I really was tempted to get one, but then Brian's alternator came up for cheap and I got that. I would love to have one on the car though because I like the packaging so much. I have no doubt they work well, but I'm trying to hold down the costs on the build thus it makes sense for me to go tried and true.
How do you tension it? Do you need a tensioner? The crank pulley is obviously fixed, as is the pulley/water pump.
Ron |
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06-12-06, 04:16 PM
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#7 (permalink)
| | Russ Noble Lifetime Premier Supporter 
Join Date: Jul 2004 Location: Christchurch,NZ GT40: Building scratc
Posts: 1,406
Rep Power: 21   | They were originally developed for a racer wanting a smaller more reliable alternator, reliability is 100% according to their sales blurb.
"0 Failure rate, 1000's in use" http://www.racemate.com/
Regards |
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06-12-06, 04:48 PM
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#8 (permalink)
| | Frank Beuker Silver Supporter 
Join Date: Nov 2005 Location: the netherlands GT40: kva
Posts: 458
Rep Power: 8  | I was planning to use it mainly on road and trackdays so it should be ok
does anyone know if you can get them in europe?
i think there's a tensioner on the side
then i've got more room for the ac unit
Frank |
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06-12-06, 05:00 PM
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#9 (permalink)
| | Keith1 10 tenths 
Join Date: Mar 2004 Location: England GT40: Nein
Posts: 1,988
Rep Power: 26   | I should imagine there is an idler pulley of sorts that goes with it.
__________________ Yours Sincerely, Keith Hardy |
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06-12-06, 05:42 PM
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#10 (permalink)
| | Sandy Gulf GT40 
Join Date: Jan 2003 Location: Los Angeles, CA GT40: RCR GT40 Gulf
Posts: 1,161
Rep Power: 18  | They have no tensioners. The belts and pulleys are the correct length and size so you have to unbolt bolt one of the pulleys to put the belts on. Nothing else needed. Belts don't come off, I run my mustang at 7500+ RPM and never had an issue. Call John up, I'm sure he can get you one to most anywhere as long as you have a credit card
HTH
Sandy
__________________ RCR GT40 #11 348" Alloy SBF, 930 Box, Gulf 1075 Trim Now in the Garage, still under construction... www.gtsparkplugs.com Links to the cars |
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06-12-06, 05:48 PM
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#11 (permalink)
| | Keith1 10 tenths 
Join Date: Mar 2004 Location: England GT40: Nein
Posts: 1,988
Rep Power: 26   | Gotta be worth the extra - cash. Cool piece of kit...
__________________ Yours Sincerely, Keith Hardy |
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06-12-06, 07:25 PM
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#12 (permalink)
| | Frank Beuker Silver Supporter 
Join Date: Nov 2005 Location: the netherlands GT40: kva
Posts: 458
Rep Power: 8  | ok i'll give him a ring tomorrow
sandy my engine's top will be about 8200 rpm but i will ask tomorrow
mayby he's got a setup for a ac aswell
Frank |
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06-12-06, 09:17 PM
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#13 (permalink)
| | Sandy Gulf GT40 
Join Date: Jan 2003 Location: Los Angeles, CA GT40: RCR GT40 Gulf
Posts: 1,161
Rep Power: 18  | Frank -
8200RPM is not a problem, he will set up your pulley ratios so your systems works fine. The motor in my RCR is of that range and not a problem. For pulleys he will make anything you need (he does all his own pulley from billet as needed) as long as you can describe it to him :-). Don't expect overnite turnaround, but he will get it done. He races a 65 Fastback mustang and has good stories as well, a good guy for sure.
Sandy
__________________ RCR GT40 #11 348" Alloy SBF, 930 Box, Gulf 1075 Trim Now in the Garage, still under construction... www.gtsparkplugs.com Links to the cars |
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06-12-06, 09:28 PM
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#14 (permalink)
| | Ron Earp Retiree 
Join Date: Sep 2001 Location: NC, USA
Posts: 4,009
Rep Power: 58  | Maybe I could do one of these....pulleys included, so, that would save some money and time getting everything done..... |
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06-12-06, 09:47 PM
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#15 (permalink)
| | Sandy Gulf GT40 
Join Date: Jan 2003 Location: Los Angeles, CA GT40: RCR GT40 Gulf
Posts: 1,161
Rep Power: 18  | Ron -
That is why I got it. I hate the crappy brackets and pulley problems that you have to sort out. Maybe you can work out an advertising deal with John to help out with pricing
I posted a pic of the RCR-40 engine in the Gallery with the serpentine belt and dry sump.
Sandy
__________________ RCR GT40 #11 348" Alloy SBF, 930 Box, Gulf 1075 Trim Now in the Garage, still under construction... www.gtsparkplugs.com Links to the cars |
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06-13-06, 03:12 AM
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#16 (permalink)
| | IanAnderson Gold Supporter 
Join Date: Nov 2003 Location: Heathrow, Londo GT40: Dax 40 Mk1 (Rov
Posts: 1,353
Rep Power: 19  | Ron
No the Lola took a drive off the left rear driveshaft to drive the alternator.
2 reasons
1) More space
2) You do not need to wind up the alternaor eash time the engine revs - the drag factor accelerating the altermator with each gear change can be eliminated.
I'll look up some photos from LM Classic 2004 and post up
Ian
__________________ Purchased a pile of bits said to be a DAX40,
Got it on the Road June 2006 (Thanks Paul)
Still tweaking EFi and getting used to driving with a grin on my face! |
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06-13-06, 08:39 AM
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#17 (permalink)
| | Ron Earp Retiree 
Join Date: Sep 2001 Location: NC, USA
Posts: 4,009
Rep Power: 58  | Quote: |
Originally Posted by IanAnderson Ron
No the Lola took a drive off the left rear driveshaft to drive the alternator.
2 reasons | On all motor configurations? There were so many motors used in T70s (even a 3.5L Buick in one for a stint) I would imagine that somewhere someone used a standard configuration. No jackshafts and rear drive for me,  , but I'd like to see the pictures. I put in a request to my wife for the Lola book that Amazon has for Father's day, we'll see how that turns out. |
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06-14-06, 07:12 PM
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#18 (permalink)
| | Frank Beuker Silver Supporter 
Join Date: Nov 2005 Location: the netherlands GT40: kva
Posts: 458
Rep Power: 8  | I called John and he wil give me an estimate for the alternator and also a bracket for an ac pump on the same serpentine
Frank |
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07-11-06, 05:59 PM
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#19 (permalink)
| | IanAnderson Gold Supporter 
Join Date: Nov 2003 Location: Heathrow, Londo GT40: Dax 40 Mk1 (Rov
Posts: 1,353
Rep Power: 19  | Ron
From this year's event - trying to get the Dax on he road took too much time
Ian
__________________ Purchased a pile of bits said to be a DAX40,
Got it on the Road June 2006 (Thanks Paul)
Still tweaking EFi and getting used to driving with a grin on my face! |
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