Dnk Posted March 10, 2011 Share Posted March 10, 2011 Beat me to it lmao Quote Link to comment Share on other sites More sharing options...
Guest 93twinturbo Posted March 10, 2011 Share Posted March 10, 2011 yeah bought it of a friend! so bad i was just getting on with the power have to put her thru the computer still dont know what brake shes pulling i know they come with 330bhp from factory but this has a massise HKS INTERCULER,DUMP VALVE, BOOST CONTROL,TURBO TIMER,HKS AIR FILTER AND ETCS will that giver a bit more bhp??? Quote Link to comment Share on other sites More sharing options...
Dnk Posted March 10, 2011 Share Posted March 10, 2011 Bin the HKS filter as their crap, get an Apexi on it or go back to the stock airbox with either a stock filter or Apexi/K&N panel filter Quote Link to comment Share on other sites More sharing options...
Nic Posted March 10, 2011 Share Posted March 10, 2011 yeah mate plenty of boost,and looks like she wants to go but the power is not there! thanks for your help anyway cheers I don't understand what you mean. Is the car manual or auto? What boost pressure are you seeing from the first turbo and what is the max boost when the second turbo is online? yeah bought it of a friend! so bad i was just getting on with the power have to put her thru the computer still dont know what brake shes pulling i know they come with 330bhp from factory but this has a massise HKS INTERCULER,DUMP VALVE, BOOST CONTROL,TURBO TIMER,HKS AIR FILTER AND ETCS will that giver a bit more bhp??? They are around 320hp as standard. HKS Intercooler - will make little difference to power Dump Valve - makes no difference to power Boost Controller - What boost pressure is the car making? Turbo Timer - makes no difference to power HKS Air Filter - will cost you power compared to a stock airbox. Does the car still have the catalytic convertors fitted or have they been replaced with decat pipes? What exhaust is fitted? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted March 10, 2011 Share Posted March 10, 2011 ct 26 turbo's are very reliable units and cope with upto 16psi of boost. They may well be but the Supra uses CT12s Do a search for TTC mode, that will open the EGV and make the turbos run in paralell. If there isnt a noticable increase in power thenyou may well have lost a turbo Quote Link to comment Share on other sites More sharing options...
Guest 93twinturbo Posted March 10, 2011 Share Posted March 10, 2011 is fitted with decat pipes and is a 6 speed manual!!mas check the psi... Quote Link to comment Share on other sites More sharing options...
bignum Posted March 10, 2011 Share Posted March 10, 2011 Not being funny but...... you just purchased the supra and take it straight to 150 on your private test track to see how fast it goes, awesome man:) Quote Link to comment Share on other sites More sharing options...
Nic Posted March 10, 2011 Share Posted March 10, 2011 yeah mate plenty of boost,and looks like she wants to go but the power is not there! thanks for your help anyway cheers You say above it is making 'plenty of boost' but the 'power is not there'. If you had problems with the second turbo it wouldn't be making 'plenty of boost', which is very confusing. Can you post what boost pressure the 1st turbo is making and the peak boost when the 2nd turbo is online. Your replies are really not giving us enough information to diagnose the problem, can you fully explain what is happening. Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted March 11, 2011 Share Posted March 11, 2011 My IQ is dropping by the second....... Quote Link to comment Share on other sites More sharing options...
Scott Posted March 11, 2011 Share Posted March 11, 2011 My IQ is dropping by the second....... Yarp. Quote Link to comment Share on other sites More sharing options...
The Raven Posted March 11, 2011 Share Posted March 11, 2011 My IQ is dropping by the second....... I dare not read this, my IQ never recovered from the Saxo vs N/A thread. Quote Link to comment Share on other sites More sharing options...
AlexJames Posted March 11, 2011 Share Posted March 11, 2011 If a VSV pipe has slipped off, the 2nd turbo usually makes around 0.3 boost tops... but like the other guys said, let us know what figure your getting and it can be diagnosed properly... Quote Link to comment Share on other sites More sharing options...
Guest gazza Posted March 11, 2011 Share Posted March 11, 2011 They may well be but the Supra uses CT12s Do a search for TTC mode, that will open the EGV and make the turbos run in paralell. If there isnt a noticable increase in power thenyou may well have lost a turbo sorry got me sups mixed up ct26 was on mk3's i think. but only the uk models come with the ct12 the JDM has the ct20's which are similar to the 26's. i knew 1 of the turbo's from the mr2 was on the mk4 lol. Quote Link to comment Share on other sites More sharing options...
Scott Posted March 11, 2011 Share Posted March 11, 2011 sorry got me sups mixed up ct26 was on mk3's i think. but only the uk models come with the ct12 the JDM has the ct20's which are similar to the 26's. i knew 1 of the turbo's from the mr2 was on the mk4 lol. Nope, CT20s are on the MR2 as well (Rev3+), they are steel wheeled. IIRC all Supras have the CT12s, the ceramic ones are CT12a and the Steel ones are CT12b... or something like that lol. Quote Link to comment Share on other sites More sharing options...
marc_p Posted March 11, 2011 Share Posted March 11, 2011 You say above it is making 'plenty of boost' but the 'power is not there'. If you had problems with the second turbo it wouldn't be making 'plenty of boost', which is very confusing. Maybe he's driving everywhere with the handbrake on? Quote Link to comment Share on other sites More sharing options...
Guest gazza Posted March 11, 2011 Share Posted March 11, 2011 Nope, CT20s are on the MR2 as well (Rev3+), they are steel wheeled. IIRC all Supras have the CT12s, the ceramic ones are CT12a and the Steel ones are CT12b... or something like that lol. i know both the ct 20 & 26 were on the mr2 thats what i said lol ( i knew 1 of the mr2's turbo's was on the mk4 ) also i was right about the turbo's on the mk4 sup. check the link, scroll down to mk IV comparisons. http://www.angelfire.com/planet/relation23/ Quote Link to comment Share on other sites More sharing options...
AlexJames Posted March 11, 2011 Share Posted March 11, 2011 Maybe he's driving everywhere with the handbrake on? Thought that was an air freshener... take it off and the smell goes away... Quote Link to comment Share on other sites More sharing options...
Scott Posted March 11, 2011 Share Posted March 11, 2011 (edited) i know both the ct 20 & 26 were on the mr2 thats what i said lol ( i knew 1 of the mr2's turbo's was on the mk4 ) also i was right about the turbo's on the mk4 sup. check the link, scroll down to mk IV comparisons. http://www.angelfire.com/planet/relation23/ Regardless of that link and what you have read, it isn't the same turbo. It's been covered on the forum many times. BTW I came from the MR2 forum and used to think the same thing, for the same reasons Edit: Just for reference have a look here. Notice that the Jspec supras are said to have the smaller CT20 turbo, the CT20 is the steel bladed turbo from the MR2 rev3+..... which we know isn't in Jspec supras Edit again: Having had a quick look around to see what is indeed what with these turbos it would appear that there may in fact be a CT20B with a ceramic turbine. I'm not really sure what the ins and out's of it all is, but if that is the case then you will indeed be correct. It would certainly make a little sense of all the confusion over the years. Surprised that they have the same model number though, being different internals. Edit yet again: Right, turns out we were both right. The CT20 is the turbo found in jspec supras, the CT20B is the turbo found in MR2 Rev3+. The CT20 has a ceramic turbine, the CT20B is the upgraded, newer version of the turbo with Steel internals. That's going from information in previous threads though, hardly anything concrete lol. I'm fed up searching now, I'll take that as the answer. Although, I wonder if you could fit a pair of CT20B internals to the Jspec Supras. Would be a good upgrade, the size and tolerance of the Jspecs with the strength of the steel turbine Edited March 11, 2011 by Scott (see edit history) Quote Link to comment Share on other sites More sharing options...
Guest gazza Posted March 12, 2011 Share Posted March 12, 2011 Regardless of that link and what you have read, it isn't the same turbo. It's been covered on the forum many times. BTW I came from the MR2 forum and used to think the same thing, for the same reasons Edit: Just for reference have a look here. Notice that the Jspec supras are said to have the smaller CT20 turbo, the CT20 is the steel bladed turbo from the MR2 rev3+..... which we know isn't in Jspec supras Edit again: Having had a quick look around to see what is indeed what with these turbos it would appear that there may in fact be a CT20B with a ceramic turbine. I'm not really sure what the ins and out's of it all is, but if that is the case then you will indeed be correct. It would certainly make a little sense of all the confusion over the years. Surprised that they have the same model number though, being different internals. Edit yet again: Right, turns out we were both right. The CT20 is the turbo found in jspec supras, the CT20B is the turbo found in MR2 Rev3+. The CT20 has a ceramic turbine, the CT20B is the upgraded, newer version of the turbo with Steel internals. That's going from information in previous threads though, hardly anything concrete lol. I'm fed up searching now, I'll take that as the answer. Although, I wonder if you could fit a pair of CT20B internals to the Jspec Supras. Would be a good upgrade, the size and tolerance of the Jspecs with the strength of the steel turbine ok i found this out, the jap supra has the same crappy ceramic internals as the mr2 ct20, but the aristo's version of the supra tt has ct20 with steel internals and are meant to swap straight over hope this clarify's things. they are all ct20 type supra and mr2 the same with ceramic, aristo's ct20 steel. Note 1: The Japanese twin turbo uses ceramic (exhaust side only) shafts which can be replaced with no modifications by the steel CT20A (large version) turbine shafts. These steel shafts are found in 2JZ-GTE Aristo's and some turbo diesel Toyotas. and we are way off topic now and taken over thread lol. Quote Link to comment Share on other sites More sharing options...
Scott Posted March 12, 2011 Share Posted March 12, 2011 ok i found this out, the jap supra has the same crappy ceramic internals as the mr2 ct20, but the aristo's version of the supra tt has ct20 with steel internals and are meant to swap straight over hope this clarify's things. they are all ct20 type supra and mr2 the same with ceramic, aristo's ct20 steel. Note 1: The Japanese twin turbo uses ceramic (exhaust side only) shafts which can be replaced with no modifications by the steel CT20A (large version) turbine shafts. These steel shafts are found in 2JZ-GTE Aristo's and some turbo diesel Toyotas. and we are way off topic now and taken over thread lol. MR2 Rev3+ is steel internals though, its the CT26 that is ceramic Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 12, 2011 Share Posted March 12, 2011 Go through all this, I mean ALL this, slowly, carefully and logically. It WILL tell you what's wrong. If it seems daunting and you are not 100% confident, or are prone to read the last chapter of books first, or miss sections out, then take it to a decent garage and get them to perform the tests. A decent Supra specialist garage is even better, not sure what you have over there. http://www.max-boost.co.uk/max-boost/supra/turbo.htm Quote Link to comment Share on other sites More sharing options...
Guest gazza Posted March 13, 2011 Share Posted March 13, 2011 (edited) MR2 Rev3+ is steel internals though, its the CT26 that is ceramic nope both are ceramic shafts, the common problem with the ct20 in the mr2 is it explodes when pushed past 17 psi, the reason for not pushing the ct 26 past 16 psi is because it don't create any more power past this lvl because the turbo houseing is to big for the size of impeller fitted. not gonna bother posting any more about this subject. ive owned trubo mr2's for over 10 years now and know them inside out, my current car is a rev1 with a rev3 conversion done by myself, i.e. turbo, ecu, wiring loom and so on. and trust me when i say the ct20 explodes it really does!!!. even at stock boost lvls they have a bad habit of breaking, the creamic shaft is very poor, which is why for both turbo's the the stage 1 hybrid involves putting in a steel impeller shaft. and for the ct26 putting a bigger impeller. Edited March 13, 2011 by gazza (see edit history) Quote Link to comment Share on other sites More sharing options...
Guest gazza Posted March 13, 2011 Share Posted March 13, 2011 :Go through all this, I mean ALL this, slowly, carefully and logically. It WILL tell you what's wrong. If it seems daunting and you are not 100% confident, or are prone to read the last chapter of books first, or miss sections out, then take it to a decent garage and get them to perform the tests. A decent Supra specialist garage is even better, not sure what you have over there. http://www.max-boost.co.uk/max-boost/supra/turbo.htm great find. blimey that looks complicated, be easier to go single lol. Quote Link to comment Share on other sites More sharing options...
Scott Posted March 13, 2011 Share Posted March 13, 2011 nope both are ceramic shafts, the common problem with the ct20 in the mr2 is it explodes when pushed past 17 psi, the reason for not pushing the ct 26 past 16 psi is because it don't create any more power past this lvl because the turbo houseing is to big for the size of impeller fitted. not gonna bother posting any more about this subject. ive owned trubo mr2's for over 10 years now and know them inside out, my current car is a rev1 with a rev3 conversion done by myself, i.e. turbo, ecu, wiring loom and so on. and trust me when i say the ct20 explodes it really does!!!. even at stock boost lvls they have a bad habit of breaking, the creamic shaft is very poor, which is why for both turbo's the the stage 1 hybrid involves putting in a steel impeller shaft. and for the ct26 putting a bigger impeller. I notice that you have changed the conversation over to the shaft, rather than the pre-discussed turbine. The CT20b has a ceramic shaft with steel turbine, the CT26 has a steel shaft with a ceramic turbine. When I was on the forum a "hybrid" was a CT26 compressor and shaft with a CT20b turbine. Jspecs have ceramic turbines, therefor they are not CT20b's. I think they are CT20s (not from the MR2) Quote Link to comment Share on other sites More sharing options...
dude Posted March 13, 2011 Share Posted March 13, 2011 Has anyone heard the story about the Lobster.......................?? Quote Link to comment Share on other sites More sharing options...
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