R33 Performance

[boostdesigns]

After doing much reading on this as well as the other forums in Australia i have come to the conclusion that 450WHP is obtainable on the stock RB25det without much risk or problem with proper bolt ons and excellent tuning. my question is with my suspension proplerly tuned"HKS coilovers" for drag. and wide 5Zigen fno1rc rims i am still not sure the widest i can run without having to roll my fenders but i am thinking 9 inches wide. what type of 1/4 mile times could i possible see with a good launch???? any input would be helpful as i have my r32 GTR but i still like the looks of the r33 better but i want the eventual 10sec 1/4 mile out of the R33 and i am thinking it can be possible.

[R31Nismoid]

450rwhp ? if so, time to go back and do more reading mate.

Way over the limits of the motor IMO

[DivHunter]

450rwhp ?  if so, time to go back and do more reading mate.

Way over the limits of the motor IMO

<{POST_SNAPBACK}>

Depends what his definition of bolt-ons and excellent tuning are

[boostdesigns]

i have a Greddy intake manifold, and a HKS exhaust manifold 50mm external wastegate with a gt30r turbo. a set of 550cc injectors front mount, tomei cams Power FC greddy boost controller greddy turbo timer" just for the looks" thats what i have accumulated at the moment i am adding a aluminum flywheel and 6 puck clutch and a underdrive crank pulley as soon as funds allow. with this similar setup the guys locally are making big HP on there 240's with rb25 conversions. does this setup sound like it would be on the mark??? i hope so as i have sunk a ton of research and so much money i have had to lie to the wife on the prices just to make everything smooth.

[anton33]

iv heard that 350rwkw is achievable with only bolt parts and still retaining stock internals and intake manifold.a good high mount (manifold,external gate etc), bigger injecters/fuel pump,aftermarket cams, computer ( with the right tune ),metal head gasket to drop the compresion ratio and the usuall beefing up of the drive train. but iv seen no dyno figures or expected 1/4 mile times

[R31Nismoid]

anyone can make 350rwkw on stock internals with an RB25, thats the easiest part ever. Hell ive seen a 26 with stock internals pump 500rwkw...

But getting them to last more than those few dyno runs is where the "stock" motor poses its grave problems.

260-270rwkw is the upper limit as commonly discussed here if search.

As for the GT30 making 450rwhp (335rwkw), doubt it unless your using race fuel

boost, are you in america? if so that would explain the 450hp aim, as over here it equates to a LOT less

[boostdesigns]

yes i am in florida in the US and there is not much support over here as most of our knowledge on these cars actually comes from you guys. and yes we are addicted to big HP motors but as i see it 450 is not alot as i have friends in the military still in japan and there seeing stock rb20det putting 400whp all the time, so i can not imagine a rb35 not being able to do this as the tuners they run into in japan says that we underestimate the rb motors. i on the other hand only have your forums to save me from blowing my motor or fixing my dilemas as they arrive. although i have taken the 2.4 ka24de engines that were stock in the nissan 240sx here to 400 and over and they were not turbo charged from the factory and are a pain to get tuned in. so i haft to believe the all mighty rb series engines can handle it.

[boostdesigns]

oh forgot the gas issue we have 93 octane and can generally get 19-20 pounds on most motors before we run out of octane, this is the general rule of thumb. according to precision turbo i can generate 450 at 20 pounds on the gt30r. this i can not verify as i have only used the t series turbos before and this is my first GT series turbos.