How to not blow up a 6port turbo?
.
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From: Lynnwood Wa
Joined: Sep 2005
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From: Smiths Falls.(near Ottawa!.Mapquest IT!)
I'll let you Read and research the info to find out..I don't like spoiling the ending.
The butler did it...maybe...
i have turbocharged multiple 6 port high compression engines. Some key point to them running long for me.
Coolant Temp
Oil Temp
Intake Air Temp
Air to fuel ratio
Timing
6-8 PSI on stock cooling system
up to 14 on a well thought out build.
Coolant Temp
Oil Temp
Intake Air Temp
Air to fuel ratio
Timing
6-8 PSI on stock cooling system
up to 14 on a well thought out build.
my 9.4 to 1 cr 87 octane timing map had a total of about 16 degrees, and my 9.7 to one map has 12. at 10 psi. stock would be around 22-24. the first high comp turbo engine i ranmore timing round 18-19, and blew it an apex at 110 mph in 4th gear.
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
Running since 2007 and has been dead reliable from an engine perspective until this spring. This spring I actually blew my first engine ever when Tina's engine let go at the high side of 3rd gear. Sucks, but hey, things happen. Been meaning to make a thread but since I'm working hard on my Cosmo I just haven't got around to it. Initial diagnosis is that my front secondary injector locked up/failed. Ouch. No compression on the front rotor. Still starts, drives and breaks the tires loose in 2nd gear.
blown engines due to climate changes are almost always a result of boost changes due to air density.
that is also why i prefer to tune engines in winter or do moderate tunes in summer, accounting for the 2-3psi of creep they will receive when colder climate hits. the higher your boost is set, the more ambient change you are likely to see depending on your wastegate setup.
my car runs 13psi in summer and 15-16psi in winter(8.5:1 CR). of course i allocated for this difference, higher compression engines are going to be more susceptible to the changes and i still prefer a 14psi ceiling for 9.4:1 turbo engines running solely pump gas.
that is also why i prefer to tune engines in winter or do moderate tunes in summer, accounting for the 2-3psi of creep they will receive when colder climate hits. the higher your boost is set, the more ambient change you are likely to see depending on your wastegate setup.
my car runs 13psi in summer and 15-16psi in winter(8.5:1 CR). of course i allocated for this difference, higher compression engines are going to be more susceptible to the changes and i still prefer a 14psi ceiling for 9.4:1 turbo engines running solely pump gas.
Last edited by RotaryEvolution; Nov 18, 2013 at 02:35 PM.
good? no
adequate? probably, for the novice without many major modifications.
it is a very limited ECU, in fact it is the most limited. for about $400 more you can get something real, that does a real job such as a sprint RE, which is still rather basic but has wayyy more functionality.
adequate? probably, for the novice without many major modifications.
it is a very limited ECU, in fact it is the most limited. for about $400 more you can get something real, that does a real job such as a sprint RE, which is still rather basic but has wayyy more functionality.
Thread Starter
Full Member
Joined: Mar 2012
Posts: 130
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From: Lynnwood Wa
good? no
adequate? probably, for the novice without many major modifications.
it is a very limited ECU, in fact it is the most limited. for about $400 more you can get something real, that does a real job such as a sprint RE, which is still rather basic but has wayyy more functionality.
adequate? probably, for the novice without many major modifications.
it is a very limited ECU, in fact it is the most limited. for about $400 more you can get something real, that does a real job such as a sprint RE, which is still rather basic but has wayyy more functionality.
pita adjustment cycles, limited range of injector choices, lack of logging additional items, only 1 additional input to log AFRs, and a small handful of other things with limited adjustability.
ask anyone who has had an Rtek and switched to another ECU their thoughts, not just those who have only experienced the Rtek itself.
when it first came out it was bad, 1 local customer popped his engine due to the aggressive default timing curves which i assume they finally tweaked down, it was running something stupid like 30+ degrees of advance at 14psi. i had to build him a timing map during his engine overhaul to prevent the new engine from going bye bye, that also kind of put a sour taste in my mouth initially for them. of course he ignored the warnings on the paperwork but you should never ship an EMS with a default such as it originally had for a turbo vehicle, it worked fine after i made the timing adjustments for him.
on another vehicle, before hot swapping maps was available i swear i got carple tunnel from tapping that stupid palm pilot.. 3 maps with 400 cell resolution, 1200 cells to adjust 1 cell at a time!(ok, so maybe half those cells you will ever use but that's still 600 cells) who would ever think that would be a good idea is beyond me.
i'm sure it is better now, but back when it was new i despised it. even with the tweaks there are still way better options for not a lot more money. it's the bottom of the bucket and you get what you pay for. when it's something critical like an ECU i prefer to not have customers be cheap.
ask anyone who has had an Rtek and switched to another ECU their thoughts, not just those who have only experienced the Rtek itself.
when it first came out it was bad, 1 local customer popped his engine due to the aggressive default timing curves which i assume they finally tweaked down, it was running something stupid like 30+ degrees of advance at 14psi. i had to build him a timing map during his engine overhaul to prevent the new engine from going bye bye, that also kind of put a sour taste in my mouth initially for them. of course he ignored the warnings on the paperwork but you should never ship an EMS with a default such as it originally had for a turbo vehicle, it worked fine after i made the timing adjustments for him.
on another vehicle, before hot swapping maps was available i swear i got carple tunnel from tapping that stupid palm pilot.. 3 maps with 400 cell resolution, 1200 cells to adjust 1 cell at a time!(ok, so maybe half those cells you will ever use but that's still 600 cells) who would ever think that would be a good idea is beyond me.
i'm sure it is better now, but back when it was new i despised it. even with the tweaks there are still way better options for not a lot more money. it's the bottom of the bucket and you get what you pay for. when it's something critical like an ECU i prefer to not have customers be cheap.
Last edited by RotaryEvolution; Nov 18, 2013 at 07:28 PM.
Thread Starter
Full Member
Joined: Mar 2012
Posts: 130
Likes: 0
From: Lynnwood Wa
pita adjustment cycles, limited range of injector choices, lack of logging additional items, only 1 additional input to log AFRs, and a small handful of other things with limited adjustability.
ask anyone who has had an Rtek and switched to another ECU their thoughts, not just those who have only experienced the Rtek itself.
when it first came out it was bad, 1 local customer popped his engine due to the aggressive default timing curves which i assume they finally tweaked down, it was running something stupid like 30+ degrees of advance at 14psi. i had to build him a timing map during his engine overhaul to prevent the new engine from going bye bye, that also kind of put a sour taste in my mouth initially for them. of course he ignored the warnings on the paperwork but you should never ship an EMS with a default such as it originally had for a turbo vehicle, it worked fine after i made the timing adjustments for him.
on another vehicle, before hot swapping maps was available i swear i got carple tunnel from tapping that stupid palm pilot.. 3 maps with 400 cell resolution, 1200 cells to adjust 1 cell at a time!(ok, so maybe half those cells you will ever use but that's still 600 cells) who would ever think that would be a good idea is beyond me.
I'm sure it is better now, but back when it was new i despised it. even with the tweaks there are still way better options for not a lot more money. it's the bottom of the bucket and you get what you pay for. when it's something critical like an ECU i prefer to not have customers be cheap.
ask anyone who has had an Rtek and switched to another ECU their thoughts, not just those who have only experienced the Rtek itself.
when it first came out it was bad, 1 local customer popped his engine due to the aggressive default timing curves which i assume they finally tweaked down, it was running something stupid like 30+ degrees of advance at 14psi. i had to build him a timing map during his engine overhaul to prevent the new engine from going bye bye, that also kind of put a sour taste in my mouth initially for them. of course he ignored the warnings on the paperwork but you should never ship an EMS with a default such as it originally had for a turbo vehicle, it worked fine after i made the timing adjustments for him.
on another vehicle, before hot swapping maps was available i swear i got carple tunnel from tapping that stupid palm pilot.. 3 maps with 400 cell resolution, 1200 cells to adjust 1 cell at a time!(ok, so maybe half those cells you will ever use but that's still 600 cells) who would ever think that would be a good idea is beyond me.
I'm sure it is better now, but back when it was new i despised it. even with the tweaks there are still way better options for not a lot more money. it's the bottom of the bucket and you get what you pay for. when it's something critical like an ECU i prefer to not have customers be cheap.
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