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Used this to try a quick theory i had regarding d-jetro and other rb engines so i fired one up on a R33 first then fiinally fitted it up into this R31.

Std Rb20

Rx7 injectors

Thai plenum

Trust TD06-l2 -20g (2 litre nirvana)

rb26 d jetro

277rwkw @1.2bar

408Nm@6100

Real nice car to drive, lots of usuable power and screams like crazy over 4500 and has phenomenaly strong mid and top... will interesting to see it lap winton this weekend,

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oh man thats made some fkn good power

I remember seeing this car at Status while it was waiting to get a tune done, has to be one of the cleanest R31s around. Looks tuff!

Where abouts is your workshop?

Status Tuning

63 Rodeo Drive

Dandenong

97923333

0419590220

Great looking R31. I so miss my old R31 :thumbsup:

Where abouts is your workshop? I wouldnt mind giving my car a run on the dyno to see how my setup with std plenum stacks up against the R31s with aftermarket plenum?

Drop past whenever Roy it would be my poleasure to put it on the dyno for you...... 0$

URAS - it's really refreshing to see that you constantly go against the grain to produce brilliant results.

I hope ROY takes you up on the offer (the price is definitely right lol)..

I've always held Roys car in high regard due to his smart mods and this latest from you also seems to be a budget build so to speak (cheap intake, rx7 injectors etc)

it will be interesting to see how Roys setup looks overlaped with this R31.

Do it Roy!!

Dont be silly, you are running a business and i hope to find out if the plenum is worth the headaches or not. So just to get the car back in one piece :D

Let me know a time and a date and I will bring it down :P

I also want to see if this plenum does anything, either way its friggin easy to change plugs and injectors :thumbsup:

When you say std RB20, do you mean it was rebuilt to standard specs? or just as is completely standard with just turbo, injectors and plenum? Obviously there are other accessories like catch cans/oil coolers and what-not, but they are more reliability accessories.

When you say std RB20, do you mean it was rebuilt to standard specs? or just as is completely standard with just turbo, injectors and plenum? Obviously there are other accessories like catch cans/oil coolers and what-not, but they are more reliability accessories.

std internals probs, unopened bottom end

One question, why does it still have z32 AFM ? Ain't the d-jetro MAP version ? :confused:

It is an expensive air filter adaptor :)

hahaha i was still waiting on the Z32 airfliter adapter turning up.

Looks good trent, what do you think is causing the fluctuation of the torque, on the higher boost run, is the boost stable?

Adriano, i bit the bullet when setting up the shop and decided to use the best dyno money can buy, after spending ALOT of time using all brands whilst contract tuning and talking to many operators here and overseas i finally decided on the dynapack, the benefit of spending so much more on a dyno over say a dyno dynamics is quite simple.... accuracy. i am able i to log and show every little bump and variation within a given run something that NO other dyno can do. To the inexperienced the dynapack torque and power curves look kinda ragged but that is just because it does not have the large rollers to dampen the curve.

The torque curve above foir the RB20 is almost perfect, most cars tend to have more variance than this one. (i will post a stock RB25 graph for a comparison as STD R33 tend to have the worst powerr delevery)

The small fluctautions in the dynapack torque curves are masked by other types of dyno's because they use large rollers wihch have a lot of inertia.... (think big flywheel) the intertia contained within those rollers on other dynos flatten out any dicrepencies. If this was to go on a dyno dynamics (or any inertia type dyno) it would look text book perfect but that is useless to anyone who is actaully trying to maximise torque /HP

lastly boost on this car was table flat. (see graph)

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