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Discussion Starter #701
From the 'Where did you go with' thread



I do have questions about the A750. When I checked Toyota of Cool Springs the tranny that fits my FJ (13) only fits 2012, 2013 and 2014. Was wondering if anyone knows the difference in years. 2007 only, 2008 and 2009, 2010 and 2011.

Is the auto transmission part of the tune the same for all years?

In 5th when the TC unlocks the temp rises rapidly. When it locks back up the temp drops rapidly.

If you drop from 5th to 4th and it is unlocked the temp still rises rapidly, but when it locks in 4th the temp rise stops and will VERY slowly drop. Very slowly. Is there something different about the lockup in 4th and 5th?

I read somewhere that there is a third condition besides locked and unlocked for the torque converter. ??

The tranny definitely acted differently going up the mountain. Better. The RPM running in the area of the increased low/mid torque. I'm sure that figures in there also.

View attachment 1122113
g'Day Lee,
there are about 6 versions of the A750 ... give or take....
Here is some home work for you... hahaha

Normal for temps to increase when it unlocks / or partially unlocks .... the new shift points can't stop the temps ...but they are much better managed with the new shift points

there is a"3rd" condition ...partially unlocked .... but I am old and forget when n why ... I'm sure its in the manual... some where

so I'm guessing ...the tune and shifts make Jade better ...and more fun ? Just holding gear longer up inclines and pulling stronger ... make it fun .... gone is the slug crawl ..especially if you loose momentum and try to get it back....
doesn't bog .....

cheers
Baz
 

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That's a negative compadre. Depends what you're used to I guess.
New tires are 285/70R16 Nitto Trail Grappler M/Ts, almost the same diameter as stock but the weight diffrerence is 51lbs Vs 62lbs. The original tires are iddy biddy 265/75R16s. Thats what came on the Allterrain version of the FJ. I could run them now but know from experience they will reduce performance slightly. More weight is more rotational resistance.
 

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I'm frothing! New tires are sitting in front of me but the tune needs to happen before I load up my drive train with big tires.
This has been the most excruciating shipping experience ever, only made worse by my anticipation of getting the tune. IF the tracking information can be believed it looks like my ECU may finally be to Tim's place on Monday, 3 weeks since leaving my house. I say 'IF' because watching the tracking updates on the USPS site has been painfully comical. According to the tracker, it left my house and went to Miami, then to Los Angeles, then to Chicago, then back to Los Angeles, then finally to Sydney. It apparently left Sydney on Thursday, and it's about a 2 day drive from there to Raptor so I'm crossing my fingers that it's getting close. I'm sure Tim knows the secrets to international shipping and the return shipment will be a little faster.

You don't need to wait necessarily on mounting the tires. I jumped from the stock tires to 295/70R17 STT Pros at 65lbs almost 2 years ago. You'll feel it during acceleration and at the gas pump but that's about it.
 

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OK, I have a really basic question about the Raptor tune that hopefully someone can answer: When I bought and installed the TRD Supercharger in my '08, the instructions stated the engine ECU is designed to only be overwritten one time. That is, one could download the S/C tune from the Techstream source, but there was no going back, the whole ECU would have to be replaced if one ever wanted to remove the S/C from the engine, to get back to original tune.

Then, when the UCON-EMS advanced engine management system came along for the 1GR-FE engine, it was a "piggyback", that is, it was put in series with the original engine ECU, and fed "happy" data to it so the UCON could run the engine in optimal mode and the parts of the original system that would otherwise send error codes were kept happy. This made sense, given the above, "non-overwrite" nature of the engine ECU that the TRD package had led to believe.

Now, the Raptor ECU flash has come along. It can be re-flashed back to factory tune anytime it is needed (some have done it just for back x back comparison, some have kept it in reserve in case ever needed for annual inspection, etc.).

I've been wondering about this ever since post #1: why is the Raptor ECU flash able to be overwritten as many times as one likes?


Norm "Mr. Curious" Kerr
 

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This has been the most excruciating shipping experience ever, only made worse by my anticipation of getting the tune. IF the tracking information can be believed it looks like my ECU may finally be to Tim's place on Monday, 3 weeks since leaving my house. I say 'IF' because watching the tracking updates on the USPS site has been painfully comical. According to the tracker, it left my house and went to Miami, then to Los Angeles, then to Chicago, then back to Los Angeles, then finally to Sydney. It apparently left Sydney on Thursday, and it's about a 2 day drive from there to Raptor so I'm crossing my fingers that it's getting close. I'm sure Tim knows the secrets to international shipping and the return shipment will be a little faster.

You don't need to wait necessarily on mounting the tires. I jumped from the stock tires to 295/70R17 STT Pros at 65lbs almost 2 years ago. You'll feel it during acceleration and at the gas pump but that's about it.
I feel your pain and have been through this before with custom Porsche tunes. I hope your ECU makes the round trip for your sake and for my own selfish reasons ;). The more expensive option I considered was to have Toyota install a new ECU then ship one of my ECUs to Tim. That way I could keep driving my truck. Not cost effective but better than installing a SC. I owned 2 trucks with superchargers and now I know better than to ever do it again on a daily driver. Never say never, but for a street driven FJ more than 50HP is Paul Walker crazy, RIP. My purpose is compensation for heavier tires that I want to run in the dunes. I have been to the gear shop and that's not what I want. There are shops here in OC that will install stroker kits. Another major investment with questionable returns.
 

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Discussion Starter #708
OK, I have a really basic question about the Raptor tune that hopefully someone can answer: When I bought and installed the TRD Supercharger in my '08, the instructions stated the engine ECU is designed to only be overwritten one time. That is, one could download the S/C tune from the Techstream source, but there was no going back, the whole ECU would have to be replaced if one ever wanted to remove the S/C from the engine, to get back to original tune.

Then, when the UCON-EMS advanced engine management system came along for the 1GR-FE engine, it was a "piggyback", that is, it was put in series with the original engine ECU, and fed "happy" data to it so the UCON could run the engine in optimal mode and the parts of the original system that would otherwise send error codes were kept happy. This made sense, given the above, "non-overwrite" nature of the engine ECU that the TRD package had led to believe.

Now, the Raptor ECU flash has come along. It can be re-flashed back to factory tune anytime it is needed (some have done it just for back x back comparison, some have kept it in reserve in case ever needed for annual inspection, etc.).

I've been wondering about this ever since post #1: why is the Raptor ECU flash able to be overwritten as many times as one likes?


Norm "Mr. Curious" Kerr
g'Day Norm,
good Q... that I can't answer...but will ask Raptor ....
The presumption is that Yoda do something "extra" ... to lock down the ECU ...
Raptor have been trying to develop a S/C flash for over a year ... to remove the need for a piggy back unit with the S/C kit... but to date have not had the success and stability they want ... so for now the piggy back unit is the only way....
It would be a nice addition to not need a piggy back to run a S/C ... but perhaps that is a bridge too far.

I'll find out why the tune is ECU re-flashable ... if they want to divulge that sort of info ...

cheers
Baz
 

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Discussion Starter #709
This has been the most excruciating shipping experience ever, only made worse by my anticipation of getting the tune. IF the tracking information can be believed it looks like my ECU may finally be to Tim's place on Monday, 3 weeks since leaving my house. I say 'IF' because watching the tracking updates on the USPS site has been painfully comical. According to the tracker, it left my house and went to Miami, then to Los Angeles, then to Chicago, then back to Los Angeles, then finally to Sydney. It apparently left Sydney on Thursday, and it's about a 2 day drive from there to Raptor so I'm crossing my fingers that it's getting close. I'm sure Tim knows the secrets to international shipping and the return shipment will be a little faster.

You don't need to wait necessarily on mounting the tires. I jumped from the stock tires to 295/70R17 STT Pros at 65lbs almost 2 years ago. You'll feel it during acceleration and at the gas pump but that's about it.
The return will be faster .... via DHL courier .... coupla days tops ...
Cheers
Baz
 

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Discussion Starter #710
OK, I have a really basic question about the Raptor tune that hopefully someone can answer: When I bought and installed the TRD Supercharger in my '08, the instructions stated the engine ECU is designed to only be overwritten one time. That is, one could download the S/C tune from the Techstream source, but there was no going back, the whole ECU would have to be replaced if one ever wanted to remove the S/C from the engine, to get back to original tune.

Then, when the UCON-EMS advanced engine management system came along for the 1GR-FE engine, it was a "piggyback", that is, it was put in series with the original engine ECU, and fed "happy" data to it so the UCON could run the engine in optimal mode and the parts of the original system that would otherwise send error codes were kept happy. This made sense, given the above, "non-overwrite" nature of the engine ECU that the TRD package had led to believe.

Now, the Raptor ECU flash has come along. It can be re-flashed back to factory tune anytime it is needed (some have done it just for back x back comparison, some have kept it in reserve in case ever needed for annual inspection, etc.).

I've been wondering about this ever since post #1: why is the Raptor ECU flash able to be overwritten as many times as one likes?


Norm "Mr. Curious" Kerr
G'Day Norm,

Straight from the horses mouth...so's to speak....

The situation is the earlier information given out may indicate that the Toyota/Techstream was indeed setup to be operate in that way – they set their own rules.


So far as UCON-EMS goes, Raptor also has the PowerMod Piggyback for FJ and works in the same way, gives all the happy signals and no lights – we understand these systems too


So far as reflashing DENSO ECUs in Toyota’s, globally there are a huge amount of tuners in the aftermarket remapping various models of Toyota’s, flashing, reflashing as often as they want – no issues at all. This applies to Raptor as well, we simply specialise in the 1GRFE range more than anyone else, but using similar/same tools as others. There is typically an upper limit as to the amount of times an ECU will reflash, in the 200 – 300 range typically.


That’s the fact of the matter – it can be done, we are doing it, others are doing it and possibly the earlier information re techstream etc may well have been fact or fiction, likely the latter, unless they had people believing that once the MAP sensor maps were added there was no return. But knowing things as we do, I would be quite certain you could return to an NA MAP – in the hands of the right professionals
 

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Warmed her up today and went down to the crawler lot for coffee. Really like the way the trans is shifting!!

I understand the trans temps, it was just cooler because the trans stayed locked up.

Still looking for an article on how the 750 and TC work.. But that is nothing new, haven't found anything on the new hybrid system either. Did find a little on the CVT though. (RAV4)

The power/torque I know its there by how she went up the mountain. Most all of my trail driving is 5-15mph at fairly low R's.

Thanks for all your help 🙂 @bazross
 

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Thanks Baz!
So it isn't just a flash of the factory ECU, its a piggyback separate ECU. OK, that makes sense to me now.
 

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Thanks Baz!
So it isn't just a flash of the factory ECU, its a piggyback separate ECU. OK, that makes sense to me now.
In the s/c, yes its still a piggy back .... I know Raptor have been working / trying to make it a flash only tune, like the NA tune, but so far ... no solid success .... and I'm not sure they will succeed ...
Cheers
Baz
 

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This has been the most excruciating shipping experience ever, only made worse by my anticipation of getting the tune. IF the tracking information can be believed it looks like my ECU may finally be to Tim's place on Monday, 3 weeks since leaving my house.
G'Day CR,
the ECU has landed .... Raptor confirmed they got it .... and turning it round asap.... and ....along with the PG3 ...flying home via DHL courier ...shortly....
cheers
Baz
 

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Thanks Baz!
So it isn't just a flash of the factory ECU, its a piggyback separate ECU. OK, that makes sense to me now.
There is no piggyback. The Raptor flashes your actual ECU. once it has been flashed, you unplug it from your OBD port and enjoy it. If you want to change the flash, you plug it back in, change it, then unplug it.
For supercharged systems they use a piggy back, but we're not ordering supercharged systems.
 

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G'Day CR,
the ECU has landed .... Raptor confirmed they got it .... and turning it round asap.... and ....along with the PG3 ...flying home via DHL courier ...shortly....
cheers
Baz
🤗😁🤗😁🤗😁🤗 Where's that 'hands clapping' emoji when you need it! I just woke up and checked the tracking info and saw it was delivered and was about to send Tim an email to see if it was still in one piece. Thanks for the update Baz!
 

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G'Day CR,
the ECU has landed .... Raptor confirmed they got it .... and turning it round asap.... and ....along with the PG3 ...flying home via DHL courier ...shortly....
cheers
Baz
Baz,

I'm talking to Tim about the best configuration for my truck. He said the tune would get rid of my flat spot below 3500 RPM. I made it worse because I installed a Magnaflow muffler with less back pressure but kept the pipes the same size. Do I need to drop to a more restrictive muffler? Tim said someone else had this issue and the tune fixed it. I couldn't find the thread.

Right now I'm planning to do the Raptor Tune for 91 Octane, TRD CAI, and change the muffler if required. Any thoughts on this?
 

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Discussion Starter #718
Baz,

I'm talking to Tim about the best configuration for my truck. He said the tune would get rid of my flat spot below 3500 RPM. I made it worse because I installed a Magnaflow muffler with less back pressure but kept the pipes the same size. Do I need to drop to a more restrictive muffler? Tim said someone else had this issue and the tune fixed it. I couldn't find the thread.

Right now I'm planning to do the Raptor Tune for 91 Octane, TRD CAI, and change the muffler if required. Any thoughts on this?
G'Day Step,
wait till you have the tune before swapping your exhaust.... I doubt you will need to change it, but time will tell
I'm running the Airaid CAI, and BAM 2.5 inch cat back with the tune...and its a great fit....
If you need a more densely packed can... smaller can ...thats not a biggie in the scheme of things... should make it sound better too ... hahaha
the 1GR does like back pressure ... but wait till you get the RT ...before wasting $$ ...
Cheers
Baz
 

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G'Day Step,
wait till you have the tune before swapping your exhaust.... I doubt you will need to change it, but time will tell
I'm running the Airaid CAI, and BAM 2.5 inch cat back with the tune...and its a great fit....
If you need a more densely packed can... smaller can ...thats not a biggie in the scheme of things... should make it sound better too ... hahaha
the 1GR does like back pressure ... but wait till you get the RT ...before wasting $$ ...
Cheers
Baz
Baz,
Thanks! Once Tim gets back to me I'm sending the $$$.
 

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Does anyone have experience with the raptor tune on their fj along with a pedal commander

Sent from my SM-N960U1 using Tapatalk
 
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