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Location:
melbourne
Registered:
November 2003
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blactop 20v 4age. redline and rev limiter.
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Wed, 23 March 2005 02:44
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hey guys, i had a search and couldnt find much definate answers.
the blacktop 20v redlines at something like 9000rpm right?
is it true that on stock computer they are rev limted at teh high 7000rpm range?
if a engine can redline so high, why did toyota set the rev limter so low?? is it common to cut the rev limiter and rev out to 9000rpm for more power? is this going to cause terrible engine damgage? is this effective? how much is an aftermarket computer for a 20v?
any explanations would be much appreciated.
thanks
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Location:
wollongong
Registered:
March 2004
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Re: blactop 20v 4age. redline and rev limiter.
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Wed, 23 March 2005 12:44
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the 20v redline is 8000, not 9000, and the rev cutout is at 8200.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: blactop 20v 4age. redline and rev limiter.
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Wed, 23 March 2005 13:32
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redline for failure in 5 minutes or 5 years?
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Location:
S.E suberbs, Vic
Registered:
December 2003
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Re: blactop 20v 4age. redline and rev limiter.
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Thu, 24 March 2005 05:30
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yeah I wouldnt mind knowing what these engines can take. Less for the backtop I assume because of the thinner rods. Are the rods the weakness?
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Location:
wollongong
Registered:
March 2004
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Re: blactop 20v 4age. redline and rev limiter.
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Thu, 24 March 2005 13:03
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i think the crank is the weakest link
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Location:
S.E suberbs, Vic
Registered:
December 2003
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Re: blactop 20v 4age. redline and rev limiter.
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Thu, 24 March 2005 13:16
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I seriously doubt that, I have had 2 friends both rev their stock standard 4ages (88kw) to 9000 one held it there. I just havent heard of a crank let go before in a 4ag engine of any sort.
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Location:
qld
Registered:
December 2003
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Re: blactop 20v 4age. redline and rev limiter.
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Fri, 25 March 2005 08:36
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the lighter rods allow a higher redline. less inertia. you will find alot of the most hardcore japanese NA '86s run an ae111 bottom end, crank and rods.. often block, somtimes pistons, with a big port 16v head.. the use of the 16v head i would say has alot to do with tradition.
as far as factory redline/rev limit, the black top is the highest at 8200.
and the crank can fail, but its usually due to oil starvation.
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