need some advice on timing maps for standalone ecu

[gtcmetalworks]

Hello ,

I just finish building my 95gsx with a gt42 and supporting mods I installed a Microtech Lt10 Ecu , What is the max timing that i can use on this motor for pump gas? I was told by Road Race Engineering to use 10degres max? but that bit to low , I tried it with 20psi and the car feels bad , im at a 1800meters altitude I was using 26 degres max but i was blowing head gaskets madly!

I have used 24 degres max on VW 1.8t engines with the same ecu , never had that problem, if anyone knows the max timing possible for this motor i will apreciate so i can build my timing map.

I set the base time at 5 degres

Thanks
Gilbert

 

[GVR4592]

You'll need to give more specifics on the engine: displacement, compression ratio,what brand of pistons, etc.

 

[Wells]

I messed around with microtech for 6 months before I threw it out the window. I went to dsmlink, and never looked back.

You can go as high on the timing as your setup allows you too. If you can get away with 15 degrees of advanced timing without knocking then great, but if you can't then retard it a bit. There isn't a specific number that anyone can tell you, even if we knew your exact setup.

 

[GVR4592]

I messed around with microtech for 6 months before I threw it out the window. I went to dsmlink, and never looked back.

You can go as high on the timing as your setup allows you too. If you can get away with 15 degrees of advanced timing without knocking then great, but if you can't then retard it a bit. There isn't a specific number that anyone can tell you, even if we knew your exact setup.

I know a few people that use the LT10 with great results, the customer service sucks, but it sucks with every standalone ECU, not just Microtech.

 

[JayRolla]

Ive been told by Andy on here that 8*-12* on pump is all you want. You can run way more than 20psi with that low timing and thats the reason. On pump you will make more power with less timing and more boost. On race gas lots of timing and boost can be done do to the higher octane. I would tune it to 12* or less and see how much boost you can get safely.

 

[Wells]

I know a few people that use the LT10 with great results, the customer service sucks, but it sucks with every standalone ECU, not just Microtech.

I guess I got spoiled with the amazing customer support of DSMlink. If I have a question/problem, then I can ask it on their forums and more than likely one of the creators will answer it even if it has nothing to due with their program.

That and the ease of tuning ...

 

[GVR4592]

Ive been told by Andy on here that 8*-12* on pump is all you want. You can run way more than 20psi with that low timing and thats the reason. On pump you will make more power with less timing and more boost. On race gas lots of timing and boost can be done do to the higher octane. I would tune it to 12* or less and see how much boost you can get safely.

Andy is referring to engine's using the 100mm crank, larger displacement engines don't require the same amount of advance as a 2.0 will. If you try 10-12 degrees on a 2.0 at low boost, you'll probably get really high egt's and maybe even some knock.

With my setup I have around 17 degrees in the torque peak advancing to 22 degrees at redline, this is on a GT35 with around 24 psi on 92 octane.

 

[GVR4592]

I guess I got spoiled with the amazing customer support of DSMlink. If I have a question/problem, then I can ask it on their forums and more than likely one of the creators will answer it even if it has nothing to due with their program.

That and the ease of tuning ...

I agree, Tom and Dave have the best customer support of any ECU tuning product available. I wish other manufacturers would do things the same way.

 

[Snobordin8]

Do you have any pics of this beast? I'm also curious to what other mods you have to support that turbo. Good luck getting it tuned!

 

[andymoraitis]

Andy is referring to engine's using the 100mm crank, larger displacement engines don't require the same amount of advance as a 2.0 will. If you try 10-12 degrees on a 2.0 at low boost, you'll probably get really high egt's and maybe even some knock.

Thank you Luke. For future posters, my timing levels are not desirable for a 2.0 and are more specific to the 2.3

 

[gtcmetalworks]

The setup im was running custom header 4inch downpipe and exhaust system , twin walbro 255lph, 24x12x4 intercooler, custom fuel system , 1000cc injectors

As far as engine hehe I wanted to blow this one then move to the new one , It was an 150k miles stock engine , I got the timing good I spoke to the guys at CTF and the setup the timing maps for me I just tuned a bit more I was running 14deg max on pump gas with 20psi the car was pushing hard i got to run agains a friend of mine with a fully build gt40 Srt4 at 20psi I wa still pulling from him , but unfortunaly the timing belt decided to take a dump and the engine got toasted ! CYLINDER 3 ate the exhaust valves and u guys must have an idea of the rest of the story , I got a 7bolt fully build 8.5:1 comp with plauter rods and a 1st gen full build head im gonna be tunning with c16 and some 30+psi , i will get u guys some pictures of teh setup during the week.

takecare
thanks for the info tho.!
merry christmas

 

[GVR4592]

I would just take it to a professional tuner.

 

[jo1]

any standalone is as good as the tuner... don't bother to have a thousand dollar standalone that have many features but you only used for fuel adjustment.

 

[JayRolla]

Thank you Luke. For future posters, my timing levels are not desirable for a 2.0 and are more specific to the 2.3

Yea yea yea, im learning. So on a 2.0 you can get away with more timing. What does stroke have to do with how much compression your making? Isnt that the only thing the motor does that will affect knock. How does a larger stroke cause more knock so you cant run as much timing?