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Kirkham Motorsports

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  #1 (permalink)  
Old 08-19-2009, 11:07 AM
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Join Date: Apr 2008
Location: Near Chichester, Sussex by the sea......, UK
Cobra Make, Engine: Crendon 427 S/C 428 FE+toploader
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all good stuff guys - thanks.
my jag diff is the 2.88 variety that was on the V12 cars, because i decided toploader on the original, so toploader for me. no turning back now - my chassis has mounts for FE+toploader welded on. im aware of the advantages of the 5th gear, but i think people usually have a 3.3+ diff when they fit these 'boxes? so its kind of swings and roundabouts? overall im hoping for only a smallish increase in rpm when im cruising compared to say TKO and shorter diff. hopefully the secondaries wont be open much then. If caught, in the uk, 85mph will get you 3-6 points added on to your licence (12 points =banned for a year). but plenty of us touch these speeds for short periods official national speed limit = 70mph.

yeh, i was mainly thinking about buying turn-key for the engine if i can - there is less local FE knowledge/resources in the UK (compared to say SBF/SBC), and ive read the warnings about needing to know what you;re doing with these engines - ive never rebuilt an engine.

Last edited by KevinW; 08-19-2009 at 11:15 AM..
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  #2 (permalink)  
Old 08-20-2009, 06:51 AM
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Cobra Make, Engine: Kirkham #523, 427 S/O
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Quote:
Originally Posted by KevinW View Post
all good stuff guys - thanks.
my jag diff is the 2.88 variety that was on the V12 cars, because i decided toploader on the original, so toploader for me. no turning back now - my chassis has mounts for FE+toploader welded on. im aware of the advantages of the 5th gear, but i think people usually have a 3.3+ diff when they fit these 'boxes? so its kind of swings and roundabouts? overall im hoping for only a smallish increase in rpm when im cruising compared to say TKO and shorter diff. hopefully the secondaries wont be open much then. If caught, in the uk, 85mph will get you 3-6 points added on to your licence (12 points =banned for a year). but plenty of us touch these speeds for short periods official national speed limit = 70mph.

yeh, i was mainly thinking about buying turn-key for the engine if i can - there is less local FE knowledge/resources in the UK (compared to say SBF/SBC), and ive read the warnings about needing to know what you;re doing with these engines - ive never rebuilt an engine.
Hi Kevin,

I have a close-ratio toploader with a 2.88 read end in mine and it works fine. It may have a slight impact on the acceleration times, but not so's you'd notice. In any case, once the tyres are spinning, what's the point of spinning them faster?
Mine cruises at around 85mph at 3,000rpm, which is fine.
If you're ever in my neck of the woods, let me know and we can meet up and I'll take you for a run so that you can see what it feels like.

Paul
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Old 08-27-2009, 09:47 AM
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Cobra Make, Engine: Actual car: AC Autokraft MK IV with Keith Craft 331. Gone: Home built Crendon, original style twin tube frame, powder coated, stainless sidepipes. FE 433
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Hi Kevin,

i'm going with a 2.88 and Tremek 3550 with a low 0.68 fifth and will keep this setup for my upcomming FE replacing the Cleveland in my Crendon.

Revs are 2000 at 150Km/h this is perfect speed for long highway distance drives and if you shift down to 1:1 fourth, you have the "normal" 4 speed setup as you will have with the Toploader.

Westcott
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Last edited by westcott cobra; 08-27-2009 at 09:49 AM..
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