rwdwiganer

I did look at this when first thinking about doing the swap, and I thought exactly the same about just buying a Supra with a single turbo kit already fitted! That 'kit' conversion from the US is big money. The only reason I decided to pursue the conversion is because I have a friend that owns his own engineering company that wants to make his own custom subframe, mounts and fit the engine and box in the RX7 I recently purchased with a water leak and no MOT for only £1500...

I'm not too sure about the rev limit, will be something I will have to look into and possibly get a bit more advice from you guys on here on this! Pretty sure I'll be staying with stock cams, so if raising the rev limit with stock cams is pointless I will leave it as Toyota intended, unless anyone knows otherwise. Sorry for my slow replies, I'm away at the moment picking the rx7 up for the conversion, but thanks for all your help so far!

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!

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?...

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?

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.

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!

Just been looking at the cast/tubular manifold link, interesting stuff! Could very well be what I need!

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!

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?

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!