DatBassTho
Active Member
I know this is the go-to thread for this topic. Are any other forums having similar discussions?
Absolutely, here is a good one that is 12 pages deep.I know this is the go-to thread for this topic. Are any other forums having similar discussions?
I'm interested in finding the answer to this too.. Supra owners with no plans of tuning their cars could be a goldmine for ECU swaps if it's all compatible.What would it take to use a 2020 ECU in a 2021? Like how involved would the process be since I assume it wouldnāt be a direct swap?
Or would it be possible to just drop in an unlockable 2021 ECU into a 2021 model assuming itās stock (the ECU not being flashed I mean)?
Cause also theoretically then could the ECU just be swapped out the flashed one for the original stock one every time you take it to Toyota and they wouldnāt have any logs showing the ECU was flashed?
If a dealership can take a generic replacement DME and code it to the proper VIN, I don't see why they couldn't code a 20 to a 21's vin?From what I remember about the member who had his ecu lost by fedex, Seems like ecu replacement needs to have dealer involved to program it correctly. Itās not just a simple swap.
Swapping a 20 ecu for a 21 ecu is a no go
From my understanding it has been tried, but unsuccessful....If a dealership can take a generic replacement DME and code it to the proper VIN, I don't see why they couldn't code a 20 to a 21's vin?
Honestly?From my understanding it has been tried, but unsuccessful....
I know plenty of people with N54/N55 cars that have been happily running JB4's for years.I know this has been discussed before, but are people with untunable cars (like me) waiting for the ECU to be cracked running something like JB4 or RaceChip (Titan) in the mean time? They seem like good options but I don't see much mention of them, just that people are frustrated about the ECU being uncrackable at the moment and waiting for it to happen. Sure, I would prefer a cracked ECU, but if I can get 100hp out of a piggyback it seems alright.
I am in the same boat. I have a locked 2021 with a catted downpipe. I thought seriously about a JB4 but I have not seen any clean dyno charts showing what to expect in terms of gains from each map. I have seen the charts for the 2020 Z4, which seems the most analogous to a 2021, but I don't know that I would put on a JB4 if the HP gain on pump gas is only 25-30 HP, which is what the charts on their website show for maps 1-2. I'm happy to be proven wrong but I would hope for more than that to make it worthwhile to me.I know this has been discussed before, but are people with untunable cars (like me) waiting for the ECU to be cracked running something like JB4 or RaceChip (Titan) in the mean time? They seem like good options but I don't see much mention of them, just that people are frustrated about the ECU being uncrackable at the moment and waiting for it to happen. Sure, I would prefer a cracked ECU, but if I can get 100hp out of a piggyback it seems alright.
Im currently running an JB4 but having some slight issues here and there.I know this has been discussed before, but are people with untunable cars (like me) waiting for the ECU to be cracked running something like JB4 or RaceChip (Titan) in the mean time? They seem like good options but I don't see much mention of them, just that people are frustrated about the ECU being uncrackable at the moment and waiting for it to happen. Sure, I would prefer a cracked ECU, but if I can get 100hp out of a piggyback it seems alright.
I've seen a couple dyno now showing Map 3 numbers with a down pipe. General range is 40-50hp and a bit over 100tq.I am in the same boat. I have a locked 2021. I thought seriously about a JB4 but I have not seen any clean dyno charts showing what to expect in terms of gains from each map. I have seen the charts for the 2020 Z4, which seems the most analogous to a 2021, but I don't know that I would put on a JB4 if the HP gain on pump gas is only 25-30 HP, which is what the charts on their website show for maps 1-2. I'm happy to be proven wrong but I would hope for more than that to make it worthwhile to me.
Can you expand on these issues?Im currently running an JB4 but having some slight issues here and there.
Its a good alternative as of now.
Yeah, that's what I thought I was seeing on the dyno charts as well, until I realized it was a 2020 they were using that was showing these dramatic increases. There really don't seem to be any numbers for a 2021 available. If we could expect these kind of gains on top of the additional horsepower we're putting out over the 2020 cars that would be great, but I'd certainly want to verify that before dropping the cash on one of 'em.I've seen a couple dyno now showing Map 3 numbers with a down pipe. General range is 40-50hp and a bit over 100tq.