Ok well I'm looking for a DD. I was thinking about picking myself up another supra, but decided I'm gonna try a 7. I have a few questions so please don't bash me for the lack of knowleadge. On the supra you can get a BC, downpipe, exhaust, and BCC, and add 100+ horsepower by going from 11psi(stock) to 17,18 psi. Can the same be done on a tt 7?

I might find a roller so then maybe I can drop a 2jzgte in it with a 67. Although if I'm impressed by the 7's engine I might end up going with a t78. For now I'd like to know what I could get outta the stock twins...

Has anyone done a wastgate spring mod, #2 turbo pipe mod
,EGCV mod to get a little more out of your stock twins?

O yes and what size injectors do they have?

 

you might wanna search or you will get an *** chewin'

but in general...........NO is the answer to the DD question

 

An RX-7 is not a DD.

You cannoy raise the boost with the stock ECU. You'll need a full fuel system and aftermarket tuneable ECU.

T78s are very far and beyond out dated. You can measure the spool time with a calendar, something I'm sure you're used to from driving a Supra. A GT40R will give you compairable power with reasonable spool time.

Because of the fickleness of the stock ECU, it's better to not push the twins for a little more when you're stock. Porting the waste gate is also a must if you plan on boosting the twins up to 15psi.

stock injectors are 550cc primaries and 850cc secondaries. To make 325whp(100hp more than stock), you'll want to run atleast 1000cc secondaries.

 

a stock 7, with stock twins can't push past 12 psi (reliably as a DD) without making modifications to replace:

- stock ecu with a Power FC engine management computer, with a good tune @ 10-12 psi.

- upgrading the fuel pump to one of your familiar Supra pump's, rewired for more juice even.

- replacing the stock injectors, primaries are 2x550 and secondaries are 2x850 with at least 1300's for the secondaries.

- other reliability mods: radiator upgrade, ast, DP, replace the fpd and all silicone vaccum lines

- starting with a properly running sequential system running 10-8-10 boost pattern.

- READ the stickied FAQ thread.

- post a build-up if you install that j2z motor in there

 

if you want it to be reliable and be able to DD it, you arent goin to get too much WHP with the stock twins, also dependin on how conscience you are about gas prices, stock TT rx7 probably does 300 KM a whole 70 Liter tank, which is horrible.
and yes, ur goin to need alot of reliability mods before anythin else if you want to DD and be fast. or like you said, you could drop a 2jz with a t67 in it, but wats the point of gettin the 7 if ur just gonna use a 2jz, thats no fun

 

yes I'm gonna read up bc the 7's sure are beautiful, I like the 99 spec fronts though ( if thats what they are called?). I might just get a 2jz and a roller then go for a project. I'm confused as to what tranny I could use. Of course I'd like the supra v160 6 spd, but I think I'd be forced to use somthing else...

 

well a 7 with a 2jz would be sick IMO. A very light 7 with a 67 and 2jz= crazy!! It'll woop on alot of stuff, just don't know what tranny to use, and my lack of knowleadge of the 7 hurts, which means I'm back to the books!

I was gonna get a NA supra for DD but I don't want two sups, I wanna nice clean fd sitten beside her!

 

if u do a 2jz swap, ur pretty much actually forced to use the supra 5 speed or 6 speed trannys,
and yes 7s are beautiful, and yes they are called 99 spec fronts, and no 2jz isnt goin to be that easy to fit in an 7 roller

 

well then I can use a r154 5 speed from the turbo mkiii
or the very expensive v160....

 

Because the transmission mounts so high on the rotary, the RX-7s have very large tranny tunnels. A Supra GETRAG will fit just fine, but they are very expensive. Though I suppose if you're going through the expense of an engine swap, $6000 for a transmission will be beans.

 

Get another supra you'd be much happier with it. An RX-7 will be high maintenance. You will be spending more a lot of money doing the swap. You'd be much better off just buying another supra. Supras are nice.

 

yup im using it as my sig, funniest **** ever, still can't stop laughing, and i've read it 4 times an told my buddies

 

The FD ISNT A SUPRA.

the mods supra guys do to them for BPU+++ mods are UNRELATED to the mods we do with FD's.

a 2JZ swap IS NOT EASY. i know a local shop owner who just completed a 2JZ swap in an FD for a client, and in total with a 67mm turbo, the cost came up to $20k with the Getrag 6-spd.

the engine will always sit high because of the mounts, regardless if you go with a subframe to fit the 2J in, or custom fabbed mounts. and will especially ruin the front suspension geometry because of said mounting. even if you were able to clean the steering rack and stock cross member, you'll still have a hard time as it is quite tight with such a long motor. and you'll need a custom hood to clear the motor.

IMHO, its not worth doing such a swap.

the FD is not a DD, it CAN be if you drive the right way, and with the reliability mods and a good tune. but other than that NO.

you'll quickly find out the FD is much more of a gold digger than a supra is. the supra just has a hefty entrance fee

 

^well put sir

 

the couple o 2jz fds around here are pretty fucked up...dont really see why everyone wants to go for the swap...major traction issues with that setup...i had a friendly check on the road with a 2jz fd and the guy was way way way behind cuz he just stood there spinnin wheels...infact i tested my car with a t68 supra at 1.5bar and that thing was spinning like crazy the guy overtook me at around 140ish kmph or something...IMO with the support u guys have for rotarys in ur area stick to the rotary its an amazing engine...if u just dont want to then the best swap to go for is the 1jz...i knw a guy with a 1jz fd and his car is pretty damn fast with no real problems....now the DD issue...if u can afford the fuel then i say go for it...my DD was unavailable for a few days so i had to use my fd as my DD and with the high petrol prices n all it was just awful :P i think someone mentioned before me and im gonna restate what he said...u can keep the fd as a DD if u take care of it and drive it the right way...

 

Ok, this thread has run its course. To the OP, if you want to continue to discussion non-rotary conversions, there is a section on this forum dedicated to that topic:

https://www.rx7club.com/other-engine-conversions-non-v-8-118/

Just create a new thread there for more specific questions on that subject line.