supra v\'s rx-7

[J4P RX]

Im running 1bar, and compared to stock its pretty savage when it kicks in (but oh so much better).  Especially the 2nd turbo - have to be carefull when that comes in as im wheelspinning in the dry in 2nd on boost, in a straight.  Must change those tyres

Cheers
Lee

[Andyp]

is 1bar safe, i was told .9 on stocks??? must try it thou

wot ecu ya got if any lee?

[J4P RX]

Re Amemiya I believe, its not got a boost controller or anything just running that boost straight from the ECU.  Assume its just a straight replacement on the stock ECU but probably set up to be right for the car.

Lee

[iaint]

As I understand it to run much above stock boost levels either WI (Water Injection) or a decent uprated Intercooler is needed.

I\'ve been advised that runnong 0.9 bar on stock setup is okay though.

Iain

[J4P RX]

Im sure mines ok anyway seeing as its obviously been like this for some time, plus its had an engine rebuild and it wouldnt have been left like this if it would cause problems.

It seems pretty clever too.  The other day I was desperate so had to get Sainsburys fuel (still 97 Super, I just done like the stuff).  What do I find upon driving it later.  It wont make any more than 0.5 bar boost and feels rough.  So we use all the Sainsbury fuel and get some Optimax, and somehow it just starts boosting normally again.  Still managed to pass a friends new S14 which he got that day running a bit rough

Lee

[jetpilot]

Has anyone got figures of the two with some real world road speeds, like 50 - 70, or 70 - 90! Would be really interseting to see what those are, i have a 3rd gen as my own car but am trading a supra tt (auto though) at the moment and the rex just seems soooo much quicker. 0 - 60, 0 - 100 times are good to know but how often do you get to just acelerate to 100+ mph, real road speeds for me seem more to be out of corners or overtaking, even 50 - 100 would be interesting. Anyone got these specs to hand.

[Trappy]

Supra stats.
30-70mph   4.7
60-100mph   7.2

RX7 stats
30-70mph    just over 5 i think.
60-100mph   8.6

p.s. my mx5 \'feels\' faster than my dads 200sx. But its a much firmer ride than the nissan. The same for  the supra and rx7. In all reviews comparing them back in the day its generally accepted that the supra was a \'lot\' faster, but not as firm and therefore tight in the twisties. They got similar lap times on tracks, the rx winning on tighter circuits.

http://www.scuderiaciriani.com/rx7/magazine_articles/Motor_Trend_article01.html

[20B_boy]

Not much contest at the strip from what I\'ve seen, not that thats a great measurement admittedly...

[davefrith]

I have only raced about 5, and one must have been an NA, but the RX-7 launches and seems to get to 80 or quicker I reckon cos its lighter
The lardy supra is bloody hard to keep up with after that but its possible

Its all talk anyway cos every car is modded different

Dave

[davefrith]

Lee

when running 1 bar are you on standard injectors ? standard intercooler or front mount ?
Whats your fueling like ?

Not gonna start a "are you sure thats safe" thread as you know your car but was just interested ?

Cheers

Dave

[J4P RX]

My 1 bar is on standard injectors (I think, dont know but no reason to suspect otherwise).  Also on the stock IC.  

It does have an re-amemiya ecu however, which is where the 1 bar is coming from and not a nasty bleed valve or something.  I have no idea what the fuelling is like, because the only extra guage I have is a boost guage.

My car is quick though   Running really well.  Since I have owned it not a single thing has gone wrong (door handle excluded), thats about 6k miles now.  I do oil changes etc all the time though (5 oil changes in them 6000, but I really like to make sure its going to be fine on track etc and dont chance it).

The engine still only has 9k on it, and was rebuilt over here just before I bought the car.  The way I see it, it wouldnt have been rebuilt like this and warrantied if it wasnt going to be safe.

Cheers
Lee

[davefrith]

sounds all good mate, don\'t doubt everything is all fine

Who rebuilt the bad boy ? just interested cos you said it had a warranty

Dave

[J4P RX]

It was done be RE:Worx, but I think it would have been Carl that actually built the engine.

Lee

[davefrith]

you have pm mate