on the stock ecu, what is the rev limiter controlled by, ignition? fueling?
cheers
mr2 rev limiter, quick question?
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Re: mr2 rev limiter, quick question?
im guessing its governed by the mr2 fairys then?
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Re: mr2 rev limiter, quick question?
Hi Dale,
Just fib and say it's for a Tubby, you'll get loads of responses then.
Marc
Just fib and say it's for a Tubby, you'll get loads of responses then.
Marc
Everyone looks at me when I drive down the road now....... wish I could read minds.
Re: mr2 rev limiter, quick question?
marcnoonan wrote:Hi Dale,
Just fib and say it's for a Tubby, you'll get loads of responses then.
Marc
yes mate, i know what you mean by that, shame really!
surely someone must know what the 7250rpm limit is actually goverened by? it will be the same whether turbo or NA, I just need to know if its ignition, fuelling or maybe something else.
cheers
Re: mr2 rev limiter, quick question?
Dale_V wrote:marcnoonan wrote:Hi Dale,
Just fib and say it's for a Tubby, you'll get loads of responses then.
Marc
yes mate, i know what you mean by that, shame really!
surely someone must know what the 7250rpm limit is actually goverened by? it will be the same whether turbo or NA, I just need to know if its ignition, fuelling or maybe something else.
cheers
the standard way is just cut ignition, then if you ignore that cut fuel as well.
N/a's need revs 8100rpm limit for me, need to get it dyno'd as it pulls hard all the way to the limit. 173bhp stock + mongoose, + cool feed induction + higher rev limit & remapped, got to be pushing 190bhp
'02 VX220 2.2 n/a Daily driver - Exige Size TD 1.2 - TAT shorty Diffuser - HardTop - Chris Tullet 4-1 Manifold.
'97 mk1 Mazda Eunos Turbo track car with 260bhp/ton - soon more as Chris Wilsons going to build me an engine over the winter ) .
'97 mk1 Mazda Eunos Turbo track car with 260bhp/ton - soon more as Chris Wilsons going to build me an engine over the winter ) .
Re: mr2 rev limiter, quick question?
steve b wrote:Dale_V wrote:marcnoonan wrote:Hi Dale,
Just fib and say it's for a Tubby, you'll get loads of responses then.
Marc
yes mate, i know what you mean by that, shame really!
surely someone must know what the 7250rpm limit is actually goverened by? it will be the same whether turbo or NA, I just need to know if its ignition, fuelling or maybe something else.
cheers
the standard way is just cut ignition, then if you ignore that cut fuel as well.
N/a's need revs 8100rpm limit for me, need to get it dyno'd as it pulls hard all the way to the limit. 173bhp stock + mongoose, + cool feed induction + higher rev limit & remapped, got to be pushing 190bhp
cheers steve, now i can attempt to increase the rev limit to 8000. should be fun
Re: mr2 rev limiter, quick question?
I wonder what the standard block could take and still be reliable? i assume the rev limiter was no different on the rev 1,2 compared to the higher powered 3,4,5's? although i can imagine it being alot safer to do on the later revs?
Re: mr2 rev limiter, quick question?
mk2too wrote:I wonder what the standard block could take and still be reliable? i assume the rev limiter was no different on the rev 1,2 compared to the higher powered 3,4,5's? although i can imagine it being alot safer to do on the later revs?
I believe the rev limit is the same on all revisions
Increasing the rev limit on a stock mr2 engine would be safer on rev3+ as they have an underbucket shim arrangement
Re: mr2 rev limiter, quick question?
86 x 86 square engines 8k all day long on a stock block !!
A lightened one ( rods / pistons / fly / trick clutch / pullies ) should be able to squeeze a bit more out.
I'm at a conservative 8500rpm on mine !!
Most the rev 3's bailed at around 7300 - 7400 rpm... rev 2 turbos change at 6k as it was pointless anything more with that CT-26 due to it being asthmatic and torque dropping off !!
NA's.. a different kettle of fish... Dale, you still got the shim on bucket setup ??!! Can't remember it on the NA's ??!! You stuck HKS's in as well ?!?! Hmmm...
A lightened one ( rods / pistons / fly / trick clutch / pullies ) should be able to squeeze a bit more out.
I'm at a conservative 8500rpm on mine !!
Most the rev 3's bailed at around 7300 - 7400 rpm... rev 2 turbos change at 6k as it was pointless anything more with that CT-26 due to it being asthmatic and torque dropping off !!
NA's.. a different kettle of fish... Dale, you still got the shim on bucket setup ??!! Can't remember it on the NA's ??!! You stuck HKS's in as well ?!?! Hmmm...
|| S256SX Airwerks Powered MR2 Turbo || V10 BMW M5 ||
Re: mr2 rev limiter, quick question?
JJ wrote:86 x 86 square engines 8k all day long on a stock block !!
A lightened one ( rods / pistons / fly / trick clutch / pullies ) should be able to squeeze a bit more out.
I'm at a conservative 8500rpm on mine !!
Most the rev 3's bailed at around 7300 - 7400 rpm... rev 2 turbos change at 6k as it was pointless anything more with that CT-26 due to it being asthmatic and torque dropping off !!
NA's.. a different kettle of fish... Dale, you still got the shim on bucket setup ??!! Can't remember it on the NA's ??!! You stuck HKS's in as well ?!?! Hmmm...
nah on solid buckets, a ported and polished head, piper 264 cams, adjustable piper pulleys and piper springs its good to go basically
Re: mr2 rev limiter, quick question?
8K minimum !!!
Did you shim up the oil pump whilst it was in bits ??!
Did you shim up the oil pump whilst it was in bits ??!
|| S256SX Airwerks Powered MR2 Turbo || V10 BMW M5 ||
Re: mr2 rev limiter, quick question?
JJ wrote:8K minimum !!!
Did you shim up the oil pump whilst it was in bits ??!
no i didnt shim the pump. im using a 3sgte pump, but they are exactly same as 3sge ones anyway arnt they? will i still be ok at 8k?
Re: mr2 rev limiter, quick question?
Its not feeding a turbo as well.. which you'd assume should be fine since the turbo feed is an additional channel of pressure loss. The rev 1/2 turbos I read had a problem sustaining flow above 8K ( limit )
Wonder why toyota kept them relatively low in comparison to their little 4AGE brother... I used to rev mine to 7900 on a daily basis !! Straight out the factory !! Like a friggin motor bike !!
Wonder why toyota kept them relatively low in comparison to their little 4AGE brother... I used to rev mine to 7900 on a daily basis !! Straight out the factory !! Like a friggin motor bike !!
|| S256SX Airwerks Powered MR2 Turbo || V10 BMW M5 ||
Re: mr2 rev limiter, quick question?
JJ wrote:Its not feeding a turbo as well.. which you'd assume should be fine since the turbo feed is an additional channel of pressure loss. The rev 1/2 turbos I read had a problem sustaining flow above 8K ( limit )
Wonder why toyota kept them relatively low in comparison to their little 4AGE brother... I used to rev mine to 7900 on a daily basis !! Straight out the factory !! Like a friggin motor bike !!
so ill be fine then I think it should be a blast
Re: mr2 rev limiter, quick question?
Dale_V wrote:JJ wrote:Its not feeding a turbo as well.. which you'd assume should be fine since the turbo feed is an additional channel of pressure loss. The rev 1/2 turbos I read had a problem sustaining flow above 8K ( limit )
Wonder why toyota kept them relatively low in comparison to their little 4AGE brother... I used to rev mine to 7900 on a daily basis !! Straight out the factory !! Like a friggin motor bike !!
so ill be fine then I think it should be a blast
Its good the noise my n/a makes at 8000rpm is great
'02 VX220 2.2 n/a Daily driver - Exige Size TD 1.2 - TAT shorty Diffuser - HardTop - Chris Tullet 4-1 Manifold.
'97 mk1 Mazda Eunos Turbo track car with 260bhp/ton - soon more as Chris Wilsons going to build me an engine over the winter ) .
'97 mk1 Mazda Eunos Turbo track car with 260bhp/ton - soon more as Chris Wilsons going to build me an engine over the winter ) .