The claimed horsepower for the TR5 with fuel injection was 150, whereas the
TR250 2.5 liter 6 cylinder with carbs was 104 or 105, same as the 4
cylinder.
Tim Murphy
-----Original Message-----
From: RACER BUD [mailto:budscars@comcast.net]
Sent: Wednesday, October 14, 2009 11:05 AM
To: Tim Murphy; 'Peter Vucinic'; 'FOT'
Subject: Re: [Fot] TR6 Injection Fuel Pump
I'm curious you guys....What kind of horsepower does a racing TR6 put out
with the fuel injection/versus carbs?
I'll take my answer on the air!
Racer Bud...Spitfire #21
----- Original Message -----
From: "Tim Murphy" <timmurph@fastbytes.com>
To: "'Peter Vucinic'" <pvucinic@netspace.net.au>; "'FOT'"
<fot@autox.team.net>
Sent: Wednesday, October 14, 2009 6:44 AM
Subject: Re: [Fot] TR6 Injection Fuel Pump
>I don't have fuel injection on a TR6 race car but I do have a TR5 with
>Lucas
> fuel injection. I recently installed the Bosch pump and filter kit, which
> I
> got from Malcolm Jones at Prestige Injection in the UK, on the car. I
> also
> modified the fuel tank for outlets on both sides and separate return ports
> on the top. The kit included a new outlet fitting to replace the original
> to allow for adequate fuel flow into the pump. In addition I rewired the
> pump adding a fused fuel pump relay and heavier wiring. The original pump
> drew about 5.6 amps and had a voltage drop of 2.8 volts to the pump. The
> new pump draws 9.5 amps with only a 0.75 volt drop at the pump with the
> rewiring. If you need the numbers of the pump and filter I'm sure I have
> them somewhere or can get them for you. The TR6 fuel tank was modified on
> the PI cars to overcome some of the problems with the TR5 tank but I don't
> know if that tank was used in the carbureted TR6 cars.
>
> I'm currently running 103 PSI at the metering unit but will be increasing
> that to about 110 as I am having some intermittent problems and also am
> not
> sure of the accuracy of my fuel pressure gauge. The 103 could be marginal
> and may even be lower if my gauge reads 2% or 3% high, which is typical
> standard gauge accuracy.
>
> Tim Murphy
>
> -----Original Message-----
> From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
> Behalf Of Peter Vucinic
> Sent: Tuesday, October 13, 2009 11:18 PM
> To: FOT
> Subject: [Fot] TR6 Injection Fuel Pump
>
> Dear List'rs,
>
>
>
> Can those people running after market FUEL PUMPS on their injection
> system,
> race cars, give me some idea of what EXTERNAL pump they are tending to
> use?
>
> BOSH? Etc.
>
>
>
> What pressures are the seeing at the Fuel Metering Unit?
>
>
>
>
>
> Thanks
>
>
>
> Kind Regards
>
> Peter Vucinic
>
> TR-4
> Fot mailing list
>
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>
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