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Old 11-07-2003, 15:59   #1 (permalink)
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No rev limit on V8's?

IS there a rev limit on the 8's? If not why? My car doesnt sound too healthy at 6000rpm. Maybe a rpm limit of 5400 like the earlier 6's would be a good thing?

Dunno just interests me why there isnt one.

Or havent I found it yet
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Old 11-07-2003, 18:39   #2 (permalink)
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Re: No rev limit on V8's?

the 6's have one? I had mine over 5500 quite afew times and no cut out ... on ED anyway?

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Old 11-07-2003, 19:57   #3 (permalink)
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Re: No rev limit on V8's?

I don't know if they have a rev limit or not.
What I do know is the Windsor can rev forever.
Unlike the I6, the Windsor has oversquare bore/stroke and is happy to rev past 6000 in stock form (mechanical wise).
Perhaps for this reason the rev limit is 6500 or so??

The reason why your's (and other stockers) don't feel happy at higher revs is because they have small cams and shitty heads. They just simply run out of puff higher up.

Make them breath and you can rev the snot out of them.

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Old 11-07-2003, 21:01   #4 (permalink)
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Re: No rev limit on V8's?

They are set high around 6250 rpm..
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Old 11-08-2003, 00:37   #5 (permalink)
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Re: No rev limit on V8's?

man, I'm scared to rev my car past 5000rpm let alone 6000?
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Old 11-08-2003, 01:10   #6 (permalink)
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Re: No rev limit on V8's?

Yeah 5000rpm seems to be the limit in stock form. When I did a standstill once i breifly hit 6000rpm. The images of valves not closing in time and doing amage came to mind so I let it come back to 4500.

The thing that made me wonder if there was no limiter was Ive reved the crap outof the car in neutral before (the tacho went off the guage) and it didnt seem like it was going to stop.

Got me beat.
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Old 11-08-2003, 01:15   #7 (permalink)
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Re: No rev limit on V8's?

I spose it would be easier if I had rr's and h/d springs to even contemplate revving the beast out to 6!

hehe. would have loved to have seen how much smoke ya made with the standstill!
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Old 11-08-2003, 01:23   #8 (permalink)
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Re: No rev limit on V8's?

Yeah. It was at the drags. I got a video of it too. you can hear it didnt like the revs. Stuff all smoke tho! Nice hard compound retread tires :/
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Old 11-08-2003, 02:44   #9 (permalink)
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Re: No rev limit on V8's?

The 289 in my XRGT easily holds 8000 in the 3rd gear burnout - usually shift at 8200, limiter set on 8400 only because of a cast crank, steel carillo rods and manual gearbox. Crane cam runs out to 8800 but its only ever seen 8600 on the engine dyno.
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Old 11-08-2003, 03:49   #10 (permalink)
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Re: No rev limit on V8's?

With the stock 5.0L winsor, the limiter should be set much lower. The valve springs are only really rated to around 5000rpm when new, and the rod bolts and main bolts aren't the best at handling high rpm. When built properly though, they love high revs.
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