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| nannas_ed |
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im currently in the process of installing gt40p heads explorer manifolds and a crow cam (cant remember the p/n of the top of my head) on the xr8. now ive also got a set of pacie ph4000 ready to bolt up also.
my question would i be better of getting the extractors ceramic coated OR installing a set of bpt underdrives. each have there pros and cons, heres what i can think of: ceramic coating PRO - reduced eng temps - increase in tourque - very bling bling finish  CON cant really think of a con with this one under drives PRO - increased throttle response - more power and torque CON - stuff all batt charge under 1500rpm - more strain on cooling system - increased low speed steering effort going by the above pros and cons it looks like the coating is the clear winner but id like to hear your thoughts. prices between the two are virtually identical so yeh thats not a factor cheers
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| facer01 |
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Age: 31 Posts: 284 Joined: 27th Sep 2009 Ride: 1995 EF Ford Fairmont Location: Bundaberg, QLD |
both sounds like a good option
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| nannas_ed |
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{USERNAME} wrote: both sounds like a good option yeh dont really have the cash for both so its either one OR the other
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| Steady ED |
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underdrives will give you an increase you can feel.
i don't think the slight increase in torque from the ceramic coating will be noticable. only people ive heard having issues with battery charge with under drives is those who only go on short stop-start drives.
_________________ ED XR8 Sprint - S-Trim, V500, 249rwkw |
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| TROYMAN |
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i think you will notice more of an improvement in the way the engine performs with the underdrives compared to ceramic coating the extractors..
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| MICKYYYY |
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Coating and performance im not sure about but if ur gona coat them eventually when u have the money just do them first as u dont want to be pulling extractors out again to get them coated and put back again.
Underdrive pullies are much easier to do at any given time so coat extractors then when u have cash for underdrives then do them.
_________________ Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color] |
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| Nigel |
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^^^ What he said - You can do the pulleys any time. Exhaust isnt so nice...
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| GeZza200 |
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i noticed more low down torque going from 4480 (standard blue coating) to 4480's with Kermachrome coating and engine bay was heaps cooler
_________________ EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come |
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| ford-racer46 |
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Whats an underdrive?
_________________ Now, I've got a message for all the other drivers out there. If you smell a delicious, crispy smell after the race, it's not your tailpipe. It's just a little of Shake...and Bake! |
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| hans hartman |
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do the coating and drop the heat
_________________ R.I.P HANS HARTMAN |
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| BEAR80 |
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Age: 44 Posts: 683 Joined: 4th Mar 2010 Ride: BF Fairmont Ghia & TS Magna Location: central coast |
{USERNAME} wrote: Whats an underdrive? smaller pulleys on the front of the engine cheers bear |
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| ford-racer46 |
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I didnt no that was possible, that would boost revs wouldnt it?
_________________ Now, I've got a message for all the other drivers out there. If you smell a delicious, crispy smell after the race, it's not your tailpipe. It's just a little of Shake...and Bake! |
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| BEAR80 |
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Age: 44 Posts: 683 Joined: 4th Mar 2010 Ride: BF Fairmont Ghia & TS Magna Location: central coast |
{USERNAME} wrote: I didnt no that was possible, that would boost revs wouldnt it? hey it should as under drive pullies reduce rotating mass, just think of a lightened flywheel, same principles cheers bear |
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| ford-racer46 |
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Can it be done to a six/is it worth it?
_________________ Now, I've got a message for all the other drivers out there. If you smell a delicious, crispy smell after the race, it's not your tailpipe. It's just a little of Shake...and Bake! |
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| BEAR80 |
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Age: 44 Posts: 683 Joined: 4th Mar 2010 Ride: BF Fairmont Ghia & TS Magna Location: central coast |
hey
theoretically it can be done to any motor, its just a case if parts are availiable or if one off custom parts need to be made another thing with under drives you will often need to run a smaller belt. i will be bolting a set onto the bf fairmont ghia then i will be supercharging it  at this stage i will be going a capa kit with intercoolercheers bear |
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