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post #1 of 20 (permalink) Old 04-22-04, 07:06 AM Thread Starter
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BOSS 260 BOSS 290 whats the Difference??

Someone please tell why the XR8 has 260kw and the GT/P has 290 whats the difference please

Thanks

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post #2 of 20 (permalink) Old 04-22-04, 07:16 AM
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Re: BOSS 260 BOSS 290 whats the Difference??

greetings Simon
the main difference is the cam shafts & the E.C.U.

apart from the cam caps that are broached out to accomadate the higher lift cams & a set of higher comp pistons & a moderfied con rods & a different crank, i belive that the rest is identicle

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post #3 of 20 (permalink) Old 04-22-04, 08:12 PM
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Re: BOSS 260 BOSS 290 whats the Difference??

They also have s/steel valves, and the balancing process is a lot more involved

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post #4 of 20 (permalink) Old 04-22-04, 10:13 PM
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Re: BOSS 260 BOSS 290 whats the Difference??

They say that they put a special coating on the pistons as well.
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post #5 of 20 (permalink) Old 04-22-04, 10:25 PM
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Re: BOSS 260 BOSS 290 whats the Difference??

30 KW !

hehehe

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post #6 of 20 (permalink) Old 04-23-04, 01:54 AM
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Re: BOSS 260 BOSS 290 whats the Difference??

Differences as follows:

FPV high-compression pistons and piston ring pack
FPV re-engineered conrods with fully floating gudgeon pin
FPV high-lift inlet camshaft (13mm lift)
FPV high-lift exhaust camshaft (12mm lift)
FPV valves, valve springs and finger followers
FPV balanced crankshaft
Heavy-duty bearings.

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post #7 of 20 (permalink) Old 04-23-04, 02:20 AM
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Re: BOSS 260 BOSS 290 whats the Difference??

does it let more fuel in and let it out faster or something?
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post #8 of 20 (permalink) Old 04-23-04, 03:54 PM
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Re: BOSS 260 BOSS 290 whats the Difference??

different number on the rocker cover? :D

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post #9 of 20 (permalink) Old 04-24-04, 04:46 PM
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Re: BOSS 260 BOSS 290 whats the Difference??

Quote:
Originally Posted by Baeddan
30 KW !

hehehe
You beat me to it lol
Cheers John


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post #10 of 20 (permalink) Old 04-24-04, 08:51 PM
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Re: BOSS 260 BOSS 290 whats the Difference??

Quote:
Originally Posted by TICK4D
They say that they put a special coating on the pistons as well.
Apparantly it helps them to burn oil. lol

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