rwdwiganer Posted June 16, 2011 Share Posted June 16, 2011 Hi, i'm pretty new to this forum but i'm now looking to get all the parts together I need for my (soon to be) single turbo 2JZ, was just hoping that someone wouldn't mind a quick run through my shopping list for me if possible! :-) GT35R turbo, tubular manifold, tial 44mm external wastegate, 850cc sard injectors on standard fuel rail, Q45 throttle body (...not sure if this is necessary), vems ecu and a spec stage 3 clutch. Think i'm going to have to do a bit more research on here into which fuel pump (or pumps...) to run but at the moment i'm thinking twin in-tank walbro or bosch pumps or if it is easier use one aeromotive pump... any help with this really would be appreciated! Quote Link to comment Share on other sites More sharing options...
Thorin Posted June 16, 2011 Share Posted June 16, 2011 Welcome, but hard to comment much on such a vague list. What make "tubular manifold"? Which "spec stage 3 clutch"? I'm also not aware of anyone ever using a VEMS ECU on a Supra, if it's even possible, and you may have problems finding someone to map it for you. Quote Link to comment Share on other sites More sharing options...
Nic Posted June 16, 2011 Share Posted June 16, 2011 Hi, i'm pretty new to this forum but i'm now looking to get all the parts together I need for my (soon to be) single turbo 2JZ, was just hoping that someone wouldn't mind a quick run through my shopping list for me if possible! :-) GT35R turbo, tubular manifold, tial 44mm external wastegate, 850cc sard injectors on standard fuel rail, Q45 throttle body (...not sure if this is necessary), vems ecu and a spec stage 3 clutch. Think i'm going to have to do a bit more research on here into which fuel pump (or pumps...) to run but at the moment i'm thinking twin in-tank walbro or bosch pumps or if it is easier use one aeromotive pump... any help with this really would be appreciated! I use to run a Garrett GT35R, there is a full breakdown of the modifications to my car in my garage HERE that may help. The GT35R is a very responsive turbo and good for 550hp at moderate boost levels, 600hp should be possible but you'd need to run quite high boost pressure. Have you considered the new Garrett GTX35R? They offer even faster spool up than the GT35R and can flow 10% more so 600hp should be possible at relatively moderate boost levels. If I was doing a GT35R install I would buy an HKS Turbo Set-Up Kit, the quality of the kit is second to non and it includes everything you need for the conversion - when I say everything, I mean everything down to the last nut bolt, bracket, gasket, heat wrap, turbo heat shield etc. more than any other kit on the market that I know of - the kit does not include the turbo so you can spec your own T4 bodied turbo, the Garrett GT35R would be a perfect fit. An in tank Walbro GSS342 or Bosch 044 pump will be fine. The stock fuel rail and 850cc injectors will be fine. The stock intake manifold will be fine, an after market intake plenum/throttle may add a little but it's definitely not a must have, depends how much you want to spend and how far you want to push it. If you need any more help just shout. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted June 16, 2011 Share Posted June 16, 2011 I had a wideband/EGT sensor from VEMS and it failed soon after fitting it. After that happened I heard of many others failing too, so I'd steer clear of that brand if I were you. Quote Link to comment Share on other sites More sharing options...
rwdwiganer Posted June 16, 2011 Author Share Posted June 16, 2011 Thanks for your replies! I'm not 100% sure on which manifold as of yet and i'm going to buy the management last anyway. The 2J is going to be fitted in my RX7 FD shell (sorry, I know I will have to be careful with what I say on the Supra forum from now on... :-) so do you think it may be worthwhile fitting a stronger headgasket and fitting arp bolts while the engine is out of the car, or is it really not necessary? I've read so many different opinions on this, but I won't be running over 1.8bar with the GT35R anyway. Obviously while the engine is out i'll be changing the basics... oil pump, water pump and timing belt etc... As for the fuelling, would the single in tank pump be enough for what i'm looking to achieve? I've seen so many people on here running twin-pump set ups, and an external aeromotive set up isn't by any means cheap at all so if the single in-tank bosch 044 is up to the job... happy days! I'm just confused why I have seen so many single turbo mkiv's running with twin pumps for under 600hp if it isn't really necessary? Quote Link to comment Share on other sites More sharing options...
Nic Posted June 16, 2011 Share Posted June 16, 2011 (edited) If you have the engine out I would open it up, get it cleaned, check all tolerances and replace all bearing, gaskets, seals, etc. Supra service manual The stock headgasket will cope with the power. ARP bolts are not necessary but if you open the engine then you might as well fit new ARP bolts. If you are fitting in an RX7 you may not have enough engine bay room for a standard 2JZ-GTE single turbo kit, I would look at using a cast manifold rather than a turbular manifold as it will make the packaging of turbo install a lot more compact. See HERE A single in tank Bosch 044 will cope fine. Edited June 16, 2011 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
Nic Posted June 16, 2011 Share Posted June 16, 2011 Yeah space looks tight in there! Ab6WYVH-52A Quote Link to comment Share on other sites More sharing options...
rwdwiganer Posted June 16, 2011 Author Share Posted June 16, 2011 Nic, i'm really grateful for your advice! I'm in quite a good position with the build with a good engineering shop carrying out the swap. I am not aware of the GTX35R but will look into it. I haven't really looked into the HKS systems mainly due to the cost! Sorry for all the questions but do you think it is necessary to change to a Q45 throttle body? Is the standard one any good or does it need replacing anything above 600hp? I cannot see me pushing things much further as the relatively weak point will be the R154 box I will be using... would be nice to though! I've seen that before in your pic, a 1JZ swap... Well it looks like a 1JZ head to me anyway! Quote Link to comment Share on other sites More sharing options...
Bailey. Posted June 16, 2011 Share Posted June 16, 2011 Leave the q45, what gauges do u have? Rear tyre size? Brakes? Are the injectors low or high impedance? If the engine is out atleast change the oil pump and belts etc, worth a full strip down if you can tbh? Quote Link to comment Share on other sites More sharing options...
rwdwiganer Posted June 16, 2011 Author Share Posted June 16, 2011 Just been looking at the cast/tubular manifold link, interesting stuff! Could very well be what I need! Quote Link to comment Share on other sites More sharing options...
rwdwiganer Posted June 16, 2011 Author Share Posted June 16, 2011 I can't really comment on gauges, tyres or brakes as of yet; I know they are as equally important but i'm starting with the conversion, turbo and fueling (and nightmare with electrics to come :-) at the minute. I just hope the R154 gearbox won't be too much of a limiting factor... I'm only looking for this build to be a reliable step up in performance from my 1360kg 2wd Skyline with 407hp... I have 'seen the light' and realise JZ engines are the way forward! Quote Link to comment Share on other sites More sharing options...
Bailey. Posted June 16, 2011 Share Posted June 16, 2011 Reliability is key, I'm going to 650 max with my single, a couple of long term single owners have said at 600-650hp, it's fairly reliable and still a very usable, super car slaying motor. Electrics arnt to bad, just don't chuck out the instructions, lol. Do you have an LSD diff blw or are all Rex diffs LSD? Quote Link to comment Share on other sites More sharing options...
rwdwiganer Posted June 16, 2011 Author Share Posted June 16, 2011 Sorry, but as for injectors being high or low impedance i'll be honest it's out of my depth a bit but I would appreciate your recommendations on this! I'm so far only aware that I need 850cc injectors to fit the standard fuel rail. Quote Link to comment Share on other sites More sharing options...
Bailey. Posted June 16, 2011 Share Posted June 16, 2011 Well a j spec comes standard with high impedance injectors, so if you get h/I injectors your fine, however I bought low imp. Injectors, and to use these you have to fit a resistor pack to the loom for them to work. Quote Link to comment Share on other sites More sharing options...
rwdwiganer Posted June 16, 2011 Author Share Posted June 16, 2011 Thanks for that, I wasn't aware of the different impedence injectors! I do now! I will have a bit of a wiring nightmare I imagine when the time comes to get the Mazda loom sorted out... I will be using the standard RX7 lsd, im 90% sure they all are. Could I ask what manifold, turbo and fuelling set up you will be using for 650hp with yours? Quote Link to comment Share on other sites More sharing options...
Bailey. Posted June 16, 2011 Share Posted June 16, 2011 Bosch 044 pump 850cc injectors Sard fpr Precision 6765 billet turbo Greddy manifold and w/gate Modified greddy down pipe Hks f con It made 586 at 1.3 bar, boot above that boost we had a missfire, so back up for mapping once I have new coil packs, http://www.mkivsupra.net/vbb/showthread.php?231398-Bailey-s-single-build-thread/page35 Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted June 16, 2011 Share Posted June 16, 2011 550bhp = can keep stock fuel system, uprate the fuel pump bosch 044, injectors 650cc drop ins. Just invest in a decent standalone ecu. turbo= batmowheel range is looking good. Greddy manifold and Q45 throttle body. Shed loads of chrome= join the bling team Quote Link to comment Share on other sites More sharing options...
imi Posted June 16, 2011 Share Posted June 16, 2011 why not speak to whifbitz and get one of his turbo kits. Quote Link to comment Share on other sites More sharing options...
Bailey. Posted June 16, 2011 Share Posted June 16, 2011 Dump the inlet mani, that's just someone loving bling, lol Quote Link to comment Share on other sites More sharing options...
Bailey. Posted June 16, 2011 Share Posted June 16, 2011 why not speak to whifbitz and get one of his turbo kits. He Ay well struggle with space mate as it's going in a rx7?? Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted June 16, 2011 Share Posted June 16, 2011 Dump the inlet mani, that's just someone loving bling, lol , would look awesome tucked away in a rex engine bay Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted June 16, 2011 Share Posted June 16, 2011 they are called MAZOTA'S, come on guys get with it... im subscribed sounds good and i wish you the best of luck any bling let me know Quote Link to comment Share on other sites More sharing options...
rwdwiganer Posted June 16, 2011 Author Share Posted June 16, 2011 550bhp = can keep stock fuel system, uprate the fuel pump bosch 044, injectors 650cc drop ins. Just invest in a decent standalone ecu. turbo= batmowheel range is looking good. Greddy manifold and Q45 throttle body. Shed loads of chrome= join the bling team Cheers for the info! Can I ask why some people recommend swapping the standard throttle body for a Q45 and others don't? Am I right in saying they aren't just a straight bolt on fit to a 2J?... Not familliar with the 'batmowheel range' turbos I wouldn't know what to go for. I was going for a GT35R but may look into a Precision turbo like Baileyjdm has... I like the idea of 580hp at only 1.3 bar! I don't know that much about this range either but if it is as responsive as the roller bearing GT35R that may be the way forward. Baileyjdm am I right in saying your running standard headgasket and no ARP bolts?... Quote Link to comment Share on other sites More sharing options...
Bailey. Posted June 16, 2011 Share Posted June 16, 2011 Cheers for the info! Can I ask why some people recommend swapping the standard throttle body for a Q45 and others don't? Am I right in saying they aren't just a straight bolt on fit to a 2J?... Not familliar with the 'batmowheel range' turbos I wouldn't know what to go for. I was going for a GT35R but may look into a Precision turbo like Baileyjdm has... I like the idea of 580hp at only 1.3 bar! I don't know that much about this range either but if it is as responsive as the roller bearing GT35R that may be the way forward. Baileyjdm am I right in saying your running standard headgasket and no ARP bolts?... The oem head gasket is proven to be pretty much the best out there, plenty of high power supras using them, i have arp rod bolts and hed studs, it seemed silly as i had the engine out of the car not to do it as the rod bolts are a weak point, turbo wise just do alot of research and choose a turbo that is proven time and time agian, but if you stick with garrett, precision or borg warner you wont go far wrong, i also have whifbitz 264 cams blw, Throttle body and inlet mani is a great upgrade probably gaining around 40-50 hp, but at the levels of hp you are talking of i dont think you need it. Quote Link to comment Share on other sites More sharing options...
rwdwiganer Posted June 16, 2011 Author Share Posted June 16, 2011 The oem head gasket is proven to be pretty much the best out there, plenty of high power supras using them, i have arp rod bolts and hed studs, it seemed silly as i had the engine out of the car not to do it as the rod bolts are a weak point, turbo wise just do alot of research and choose a turbo that is proven time and time agian, but if you stick with garrett, precision or borg warner you wont go far wrong, i also have whifbitz 264 cams blw, Throttle body and inlet mani is a great upgrade probably gaining around 40-50 hp, but at the levels of hp you are talking of i dont think you need it. Cheers for the info, very much doubt i'll be changing the cams... I'm still unsure of which turbo to go for but don't want too much lag and don't want to have to run too much boost to achieve 550-600hp possibly up to 1.6 bar... I do have a few concerns over the strength of the R154 5 speed box i'll be using so don't want to push my luck! Quote Link to comment Share on other sites More sharing options...
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