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Piggyback or Standalone ECU for NA-T


Parm_93

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Hi all,

 

So at the moment I'm getting my engine ready for NA-T. I'm planning on going for around 600bhp.

 

After reading up on a few threads on here I'm confused as to whether I can achieve this using something like an EMU or if I need to go standalone?

I am also going to ditch the distributor and going with VVTi coilpacks, but I have read that the EMU will work with this with the stock GE ECU? Is this right?

 

What do you guys recommend? Mostly aimed at guys that have done NA-T or similar in the past.

 

Thanks,

Parm

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A piggyback could prob manage that, depends what size injectors you plan to run, the bigger the more correction that is needed.

 

I would always go with a standalone unit though.

 

I thought so, I'm going with 700cc, as I understand the EMU can run 800cc at the limit. Just wanted to make sure as I've been reading mixed opinions on this sort of power.

 

I would probably go with a standalone in future but for now I think piggyback should do the job.

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If you plan on going standalone then I would just do that first, no sense in getting it all set up and then having to go through the same hassle later.

 

Very true, but if I do go standalone in future it would be if I go for more power, and if I wanted to go more power then I would definitely swap for a GTE rather than fork out £££ on the GE.

 

That would be a long way in the future, which is why I think a piggy back would be okay until then.

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Very true, but if I do go standalone in future it would be if I go for more power, and if I wanted to go more power then I would definitely swap for a GTE rather than fork out £££ on the GE.

 

That would be a long way in the future, which is why I think a piggy back would be okay until then.

 

Why would you bother swapping for a GTE?

The crank, rods and bearings are identical in the GE & GTE.

 

The GE doesn't have oil squirters, but there are plenty of people who have run without them. The GTE pistons are recessed to give a different compression ratio, but you could fit GTE/aftermarket Pistons or compensate with a thicker headgasket.

 

Im using an AEM V2 Standalone ECU. Nice, feature rich and plenty of safety devices.

 

Affordable and no wiring required, literally plug and play without the need for a harness adapter.

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Why would you bother swapping for a GTE?

The crank, rods and bearings are identical in the GE & GTE.

 

The GE doesn't have oil squirters, but there are plenty of people who have run without them. The GTE pistons are recessed to give a different compression ratio, but you could fit GTE/aftermarket Pistons or compensate with a thicker headgasket.

 

Im using an AEM V2 Standalone ECU. Nice, feature rich and plenty of safety devices.

 

Affordable and no wiring required, literally plug and play without the need for a harness adapter.

 

When you put it that way, I don't really know why I'd go for the GTE then lol. I have already sourced a thicker headgasket so that's not a problem.

 

The AEM is an good option, what kind of power are you running?

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Probably worth mentioning that you aren't using a standard ge block considering you got yours rebuilt

 

Mine is, but I didn't talk about mine in particular in my original post.

There are plenty of people who in stock GE blocks at 500bhp+ with associated mods and a thicker gasket.

 

Mine also wasn't rebuilt to take the current power, but to correct the fact a member on here destroyed my stock block with some bad mapping.

 

I decided to have it built to support my near future power goals.

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Mine is, but I didn't talk about mine in particular in my original post.

There are plenty of people who in stock GE blocks at 500bhp+ with associated mods and a thicker gasket.

 

Mine also wasn't rebuilt to take the current power, but to correct the fact a member on here destroyed my stock block with some bad mapping.

 

I decided to have it built to support my near future power goals.

 

Fair play.

 

Out of interest, do you have any of the members usernames or links to their build threads with stock ge at 500hp+, fancy doing some reading and research tonight

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Fair play.

 

Out of interest, do you have any of the members usernames or links to their build threads with stock ge at 500hp+, fancy doing some reading and research tonight

 

I don't to hand, but I'm sure if you look on the club NA-T link, there were plenty of them listed and some links to projects from there.

 

I'll see if I can find the link to that for you

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I have already sourced a thicker headgasket so that's not a problem.

 

Fitting a thicker head gasket is a very crude way of reducing the compression ration. If you are aiming for a reliable 600hp then you should use a stock head gasket and lower compression pistons.

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Redacted

 

I'd say standalone all day. ECU's are one of the things I definitely wouldn't scrimp on if you're chasing 600hp. They're much easier to fit and set up. Plus the extra features are great to have. Launch control, anti lag, flex fuel etc.

 

I'm running a completely stock engine at the moment but plan on fitting TT pistons to drop the compression ratio. Then I'll just crank up the boost as everything else is in place for more power

Edited by Ian C (see edit history)
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Redacted

 

I'd say standalone all day. ECU's are one of the things I definitely wouldn't scrimp on if you're chasing 600hp. They're much easier to fit and set up. Plus the extra features are great to have. Launch control, anti lag, flex fuel etc.

 

I'm running a completely stock engine at the moment but plan on fitting TT pistons to drop the compression ratio. Then I'll just crank up the boost as everything else is in place for more power

 

Redacted

 

I guess the next question is who did you get it mapped by?

Edited by Ian C (see edit history)
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Redacted

 

I guess the next question is who did you get it mapped by?

 

Redacted

 

I took mine to HQ Garage in Dalgety Bay just on the north side of Edinburgh. They were excellent, great facilities and the mapper, Russ Paton, is IMO the best mapper north of the border. Highly recommend them if you can get up here with the car.

Edited by Ian C (see edit history)
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Why would you bother swapping for a GTE?

The crank, rods and bearings are identical in the GE & GTE.

 

The GE doesn't have oil squirters, but there are plenty of people who have run without them. The GTE pistons are recessed to give a different compression ratio, but you could fit GTE/aftermarket Pistons or compensate with a thicker headgasket.

 

Im using an AEM V2 Standalone ECU. Nice, feature rich and plenty of safety devices.

 

Affordable and no wiring required, literally plug and play without the need for a harness adapter.

 

Actually the GE Rods are pathetically stick thin compared to the GTE rods

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Redacted

 

I'd say standalone all day. ECU's are one of the things I definitely wouldn't scrimp on if you're chasing 600hp. They're much easier to fit and set up. Plus the extra features are great to have. Launch control, anti lag, flex fuel etc.

 

I'm running a completely stock engine at the moment but plan on fitting TT pistons to drop the compression ratio. Then I'll just crank up the boost as everything else is in place for more power

 

 

Redacted

Edited by Ian C (see edit history)
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Actually the GE Rods are pathetically stick thin compared to the GTE rods

 

Pre vvti the rods on GE and GTE are the same. VVTi GE uses thin rods, GTE uses same rods as pre vvti.

 

The GE rods on the pre vvti are way over engineered for their purpose, I'm sure toyota knew exactly what they were doing when they fitted the thinner and lighter rods to the vvti.

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