RB-GTE Posted January 29, 2013 Share Posted January 29, 2013 I don't plan on going back to Sequential and would like to do the permanent TTC conversion. I currently just have the temporary TTC mod. I searched around and couldn't really find any instructions how to do it? is there any step by step instructions or possibley even pictures ? I already have my intake off, also I was in the process of replacing those two hoses that are above the turbo/intake. So while I'm at it I figure I'll do it all at once. I'm just not sure what I can remove exactly, and after I did remove certain things, I'm not sure what needs to be capped off or if any hoses need to be redirected to anything. But from what I've been able to find, I can completely remove the VSV's and actuators? Quote Link to comment Share on other sites More sharing options...
a98pmalcolm Posted January 29, 2013 Share Posted January 29, 2013 why would u wanna keep that god awful set up lol. As far as I know you either do the mod or not, there is no permanent or temporary way.. I maybe wrong though Quote Link to comment Share on other sites More sharing options...
drift_bear Posted January 29, 2013 Share Posted January 29, 2013 why would u wanna keep that god awful set up lol. As far as I know you either do the mod or not, there is no permanent or temporary way.. I maybe wrong though I run it all the time think its actually great! Saying that I'm boosting at 1.5 bar on hybrids with supporting mods so feels more like a small single Quote Link to comment Share on other sites More sharing options...
RB-GTE Posted January 29, 2013 Author Share Posted January 29, 2013 (edited) why would u wanna keep that god awful set up lol. As far as I know you either do the mod or not, there is no permanent or temporary way.. I maybe wrong though One of the big reasons is because in the 5 months I've owned the car, it hasn't been running properly. I currently have another thread running on this issue, where the 1st and 2nd turbo wouldn't be coming online in 1st and 2nd gear most of the time, and sometime 3rd (only getting about 0.3bar). After doing TTC mod it hasn't changed. I don't like the sequential transition between 3000-4000rpm also, I find TTC just fine and more smooth delivery.. like a single turbo. The 'temporary' way is just by changing a few hoses around, which I have already done, this means I can convert back to seqential. The permanent way won't allow me to change back to sequential by me removing the VSV's and some other things. ^ I'm just trying to figure out how, or if there is any steps how to do it I'm also thinking in the sequential setup is making my turbos not work right even in TTC. Edited January 29, 2013 by RB-GTE (see edit history) Quote Link to comment Share on other sites More sharing options...
chrispot Posted January 29, 2013 Share Posted January 29, 2013 i think you would be better to fix the sequential system first rather than change to ttc, when the system works correctly then change to ttc using the temp method and remove vsv not used? Quote Link to comment Share on other sites More sharing options...
RB-GTE Posted January 29, 2013 Author Share Posted January 29, 2013 But I don't even know what to check for anymore. Me and my supra mechanic gone over most things. replacing the cat with decat + downpipe tested vsv's and pressure tank, they are good I checked to see if the hoses were collapsed and they were not.. boost leak has been done all over the engine all vaccum hoses have been checked over a couple times disconnecting boost controller didn't solve anything they usually will not come online in 1st and 2nd gear, but sometimes they do. and when they do they spool very smooth. something is just wrong... so at this point I don't even know.. I am thinking to just rip out all the stuff I don't need and see if it solves anything. Quote Link to comment Share on other sites More sharing options...
safcdixon Posted January 29, 2013 Share Posted January 29, 2013 Have you checked the condition of the turbos? It maybe that they a worn or jammed and the fins are knackard, it would also be better to replace the vaccum hoses rather than check them this way you "know" for a fact that they are perfect Is there anyone local you could swap your tt ecu with? Maybe theres a problem with that? Quote Link to comment Share on other sites More sharing options...
RB-GTE Posted January 29, 2013 Author Share Posted January 29, 2013 Have you checked the condition of the turbos? It maybe that they a worn or jammed and the fins are knackard, it would also be better to replace the vaccum hoses rather than check them this way you "know" for a fact that they are perfect Is there anyone local you could swap your tt ecu with? Maybe theres a problem with that? I'm not in the UK but my mate over here has a shop, I have access just about to any part to swap with. Ok well we spoke today, he will be putting the car up on a lift and inspecting the turbo's. That's going to be the next step. If worst case the turbos are on the way out, I will just start to prepare for a T61 setup or something. If the turbo's check out fine, I'll just put in all brand new vaccum hoses. Well anyways assuming I get everything sorted, so there is no benefit of going with the permanent TTC mod ? Quote Link to comment Share on other sites More sharing options...
JasonR24 Posted January 29, 2013 Share Posted January 29, 2013 I'm not in the UK but my mate over here has a shop, I have access just about to any part to swap with. Ok well we spoke today, he will be putting the car up on a lift and inspecting the turbo's. That's going to be the next step. If worst case the turbos are on the way out, I will just start to prepare for a T61 setup or something. If the turbo's check out fine, I'll just put in all brand new vaccum hoses. Well anyways assuming I get everything sorted, so there is no benefit of going with the permanent TTC mod ? not unless you map it properly with syvecs or something i think Quote Link to comment Share on other sites More sharing options...
Boyne Posted September 4, 2017 Share Posted September 4, 2017 I run it all the time think its actually great! Saying that I'm boosting at 1.5 bar on hybrids with supporting mods so feels more like a small single Hi what way does car drive now in this form is it like a na up to certain rpm and the slow spool etc Quote Link to comment Share on other sites More sharing options...
Scooter Posted September 4, 2017 Share Posted September 4, 2017 It's a bit 'flat' until the high 3000's low 4000's rpm, not terrible, certainly not in a manual and has a novelty factor and when you switch back to sequential you realise how good they got the system as suddenly it has a lot more urgency pretty much from idle rpm. Quote Link to comment Share on other sites More sharing options...
Boyne Posted September 4, 2017 Share Posted September 4, 2017 (edited) It's a bit 'flat' until the high 3000's low 4000's rpm, not terrible, certainly not in a manual and has a novelty factor and when you switch back to sequential you realise how good they got the system as suddenly it has a lot more urgency pretty much from idle rpm. I have to make decision it's UK supra full bpu at min but as my mapper is haven problem with my fcon so wants me to go standalone either haltech or link g4 I think and it can only be mapped to run parrell Edited September 4, 2017 by Boyne (see edit history) Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted September 4, 2017 Share Posted September 4, 2017 I have to make decision it's UK supra full bpu at min but as my mapper is haven problem with my fcon so wants me to go standalone either haltech or link g4 I think and it can only be mapped to run sequential. Either ECU will handle the sequential turbo system. But you will need enough spare outputs on the ECU to control 3 VSV's, as well as a mapper who fancies implementing the logic to get the transition between 1st and 2nd turbo spot on, whilst managing boost levels in both lo and hi throttle scenarios. Unless you are good mates with the mapper or he is feeling generous, you will probably be charged quite a bit for him to figure it out. I have yet to see with my own eyes a convincing sequential turbo implementation on a standalone that works like the stock ECU , but some people around the world have claimed that they have cracked it. It's a case of trial and error, experimentation and reverse engineering which usually = £££ for most mappers to attempt. Quote Link to comment Share on other sites More sharing options...
Boyne Posted September 4, 2017 Share Posted September 4, 2017 (edited) Either ECU will handle the sequential turbo system. But you will need enough spare outputs on the ECU to control 3 VSV's, as well as a mapper who fancies implementing the logic to get the transition between 1st and 2nd turbo spot on, whilst managing boost levels in both lo and hi throttle scenarios. Unless you are good mates with the mapper or he is feeling generous, you will probably be charged quite a bit for him to figure it out. I have yet to see with my own eyes a convincing sequential turbo implementation on a standalone that works like the stock ECU , but some people around the world have claimed that they have cracked it. It's a case of trial and error, experimentation and reverse engineering which usually = £££ for most mappers to attempt. My head is melted car is running pig rich simple tweak of the fcon and a wide band sensor is what I need, now it's looking like full ecu and has to be parrell turbo. Edited September 4, 2017 by Boyne Mistake (see edit history) Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted September 4, 2017 Share Posted September 4, 2017 My head is melted car is running pig rich simple tweak of the fcon and a wide band sensor is what I need, now it's looking like full ecu and has to be parrell turbo. Is the FCON ECU password protected and thats why your mapper can't make any changes, or does the ECU have a hardware fault on it? Quote Link to comment Share on other sites More sharing options...
Boyne Posted September 4, 2017 Share Posted September 4, 2017 Is the FCON ECU password protected and thats why your mapper can't make any changes, or does the ECU have a hardware fault on it? Tdi gave me password which I passed on to him etc. If it had hardware fault would it still be able to run the car as it still Can? Quote Link to comment Share on other sites More sharing options...
Tyson Posted September 4, 2017 Share Posted September 4, 2017 Tdi gave me password which I passed on to him etc. If it had hardware fault would it still be able to run the car as it still Can? A little off topic but is your first name Nigel ? Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted September 4, 2017 Share Posted September 4, 2017 Tdi gave me password which I passed on to him etc. If it had hardware fault would it still be able to run the car as it still Can? Well if he has password then why can't he map the car? Quote Link to comment Share on other sites More sharing options...
Boyne Posted September 4, 2017 Share Posted September 4, 2017 Well if he has password then why can't he map the car? Exactly I don't understand it he says his software is not accessing the ecu. This guy maps all the rally cars in ireland etc, if I go for this link ecu he wants map car parrell turbo I not sure I will like that. Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted September 4, 2017 Share Posted September 4, 2017 Exactly I don't understand it he says his software is not accessing the ecu. This guy maps all the rally cars in ireland etc, if I go for this link ecu he wants map car parrell turbo I not sure I will like that. Take it to another mapper to try then? Surely thats cheaper then switching to a Link. Quote Link to comment Share on other sites More sharing options...
Boyne Posted September 4, 2017 Share Posted September 4, 2017 A little off topic but is your first name Nigel ? Yes mate Quote Link to comment Share on other sites More sharing options...
supraGZaerotop Posted September 5, 2017 Share Posted September 5, 2017 put my auto tt in ttc the other week to test turbos. i was very impressed have to say. people say in ttc is flat etc. i found it fine, feel like a single turbo, starts to boost at around 3k-3.5k by 4k it flys. i really liked and was tempted to leave it. but as said in sequential its a different car, flys off the line, suprised what that first turbo does for the car. Quote Link to comment Share on other sites More sharing options...
Burna Posted September 5, 2017 Share Posted September 5, 2017 Had mine in TTC for a few weeks now, and won't be going back, I love it! So much more of a nicer boost curve, less of a slam over to turbo 2 on a BPU car, which I never liked and isn't good for turbo 2 I'm sure. Only downside to TTC is that is spurring me on to fit a small single lol Quote Link to comment Share on other sites More sharing options...
Scooter Posted September 5, 2017 Share Posted September 5, 2017 You can also soften the BPU transition with the first turbo mod (ups the boost of the first turbo but you need to be careful as it lowers the boost diverted at transition to spool up the second turbo) which lessens the slam effect and worry over breaking traction. Mine is approx. 0.9 on the first and 1.15max on both. All the setups have their pro's and con's but it's worth having a play around to see if one suits you/your car better. My first TT was a UK spec manual and I drove it for over a year without ever knowing it wasn't in sequential! Quote Link to comment Share on other sites More sharing options...
Boyne Posted September 5, 2017 Share Posted September 5, 2017 Take it to another mapper to try then? Surely thats cheaper then switching to a Link. Back running on stock ecu now hks evc 6 lowered to 18psi car running fantastic again. Quote Link to comment Share on other sites More sharing options...
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