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Rb20det Silver Top V Rb20det Red Top

GTAAAH

By GTAAAH,
in Engines & Forced Induction

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GTAAAH Mentor

GTAAAH

Posted
Posted

um looking at dyno figures and stuff and noticed that most rb20det owners, with basic mods, seem to claim about 130 kilowatts. I read that the rb20det red top has 135 kw and the silver top has 165 kw. Is this true? Or if some one has the correct figures post them quickly for me, i need the figures to know how much i can do to the car before i no longer can modify it on my P-Plates

GTAAAH Mentor

GTAAAH

Posted
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ahh ok thanks, so im right to assume that the silver tops come with around 165 kilowatts?

Stupid P-plate restrictions, allow 125 kilowatts per tonne and if that engine is 165 kilowats then that leaves the car at 124 kilowatts per tonne. Not a huge amount of space to operate with. Got exhaust boost and pod so im probably already over it, zzz

Col-GTSX Grand Master

Col-GTSX

Posted
Posted
Nah i think the P-Plate restrictions are only about the amount of output of a stock version of the car. Someone correct me if im wrong tho.

??? Here in qld we dont have to worry about such laws... A 17 year old P plater can own a heavily modified GTR if his/her parents pockets are deep enough...

And yes the silver top is rated in the 160kw area...

blind_elk Grand Master

blind_elk

Posted
Posted
Nah i think the P-Plate restrictions are only about the amount of output of a stock version of the car. Someone correct me if im wrong tho.
Consider yourself corrected.

If you modify a vehicle so it exceeds the limits, then it has the same effect as if the vehicle were manufactured that way.

You can't fit a RB26DETT to a R32 GTSt and claim the "factory" figure is within the limits. You can't fit a LS1 into a HG Holden, and claim the "factory" figure is within the limits.

FATGTS-R Experienced

FATGTS-R

Posted
Posted

Obviously engine swaps are a different kettle of fish but if the factory fitted engine is in the car and the power/weight ratio is acceptable then you are legally able to drive the car,obviously.

But then modifying the engine would in theory exceed the power to weight ratio above P plate limits deeming it illegal.

But the authorities are only going to look at the model of car and make a P plate legal decision based on that. Dont worry about them asuming the power/weight ratio has increased with the mods, they are not going to make you prove the power output. They have many other fines for the mods alone regardless of being a p plater or not.

GTAAAH Mentor

GTAAAH

Posted
  • Author
Posted (edited)

yeh thats true, (vicroads site says 125/1tonne, also 1 tonne per 3 litres) Most of the mods im planning wont be readily recognizable i suppose. Recently theyve had coppers out on the town satday nights (lygon street, chapel street, melbourne), canarying like crazy, for all sorts of suspension, body and other modifications as well as no Cat's, some intake mods, to loud a exhaust and having a BOV set up wrong (venting to atmosphere i assume) I hope they dont teach cops much more about cars.

Edited by r32 gts-turbo
Mr Italy! Proficient

Mr Italy!

Posted
Posted
Consider yourself corrected.

If you modify a vehicle so it exceeds the limits, then it has the same effect as if the vehicle were manufactured that way.

You can't fit a RB26DETT to a R32 GTSt and claim the "factory" figure is within the limits. You can't fit a LS1 into a HG Holden, and claim the "factory" figure is within the limits.

I said a stock version of a car. Keyword here is stock. It has the same engine that came from factory - i never said anything about doing an engine swap, and neither did the guy asking questions in this thread.

blind_elk Grand Master

blind_elk

Posted
Posted

You said "the restrictions only apply to the stock version of the car". So, my initial comment still applies - if you modify the factory engine so it exceeds the limits, then it has the same effect as if the vehicle was manufactured that way. (perhaps there should have been an "and" at the start of the 3rd paragraph)

Obviously, if you are modifying the RB20DET, then it will be harder to detect, but the rules are still applicable.

WazR32GTSt Grand Master

WazR32GTSt

Posted
Posted

restrictions apply to a car based on its stock tare weight and stock flywheel output (this is for victoria anyway)

modifying the car to either increase its output or decrease its output does not change whether its acceptible or not

eg buying a R32 GTR and jammign the wastegate open does not make it legal to drive

eg buying a R32 GTSt and modifying it to make 150rwkw does not make iot illegal

changing the engine however inroduces a new engine and a new stock flywheel output.

there is heaps more info around. do a search

Mr Italy! Proficient

Mr Italy!

Posted
Posted
restrictions apply to a car based on its stock tare weight and stock flywheel output (this is for victoria anyway)

Exactly my point, how the hell are they gonna know if you've done the internals of your engine? Make you go for a dyno run and get back to them with the results. I think not.

I'd say a lot of cops really wont give a shit about the new rules as long as you dont go too nuts with mods.

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