Jump to content
SAU Community

Recommended Posts

280rwkw on stock turbos?

i dont think so tim :blink:

The car was dynoed at willall racing by Martin Donnan and Peter Hall reasonably respected tuner and engine

builder respectively. I will post the graph tommorow. The turbos are stock, please feel free to check with Steve Cramp, Manta Racing, also a respected racing driver, engine and gearbox mechanic of some repute and dabbles in a spot of suspension work. In fact after checking it was 283 rwkw on standard boost.

P.S

1. My name is Warren

2. Your Avatar suits you

Edited by R31Nismoid
Link to comment
https://www.sau.com.au/forums/topic/123125-280rwkw-stock-turbos-stock-boost/
Share on other sites

  • Replies 57
  • Created
  • Last Reply

Top Posters In This Topic

I bet you know more huh?

All i was saying is 280rwkw from a STOCK turbo'd GTR on STOCK boost is nothing but totally unreasonable

Please tell the crowd how that is wrong, and where your knowledge says thats possible

cheers

This was achived with stock turbs, 3in straightthru exhaust, Pods. PowerFC + boost controller set on stock boost. Thats it.

Anyway, back on topic. To the OP, you should be fine without one untill you do other mods.

What is the difference between the blue line and the green line? What does the blue line represent? Is that your car 100% stock or something?

I bet you know more huh?

All i was saying is 280rwkw from a STOCK turbo'd GTR on STOCK boost is nothing but totally unreasonable

Please tell the crowd how that is wrong, and where your knowledge says thats possible

cheers

mechanic for 25 years 15 of them with gibson motorsport and so yeh i might know more ya toss

14mfguf.jpg

I have posted up a 4wd drive comparison, this was prior to the PFC, boost controller, front pipes and exhaust. I agree with dyno results being all over the place but what can u do about it you have to trust someone or something, I am at the point where as long as it keeps going up who cares. I might add I change the oil every 2500km and immediately after a track day and I only use AMSOIL turbo formulated synthetic with an oil cooler. Vven with this the oil temp sometimes hits the end stop. When I do the fuel pump regulator and injectors I will post the results after another dyno run.

BTW I still havent had a response to my initial qusetion surely it cant be that hard a question.

mechanic for 25 years 15 of them with gibson motorsport and so yeh i might know more ya toss

so what did you gibson guys make with the stock turbos (on the factory boost leve)?

Oh... thats right... you were using steel wheeled turbos and not the ceramic ones

my bad

so what did you gibson guys make with the stock turbos (on the factory boost leve)?

Oh... thats right... you were using steel wheeled turbos and not the ceramic ones

my bad

who gives a f**k about boost level rwk is all that matters. nobody races dynos

ceramic turbos on 20+psi you dont think so well i know so been there done that 15 years ago toss boy

Edited by brenr33
who gives a f**k about boost level rwk is all that matters. nobody races dynos

ceramic turbos on 20+psi you dont think so well i know so been there done that 15 years ago toss boy

Considering the only comment Nismoid made was in regards to the fact that 280wkw on stock turbos and stock boost is an unreasonable figure, I think boost level is quite relevant. Or is it just that in your 15 years in motorsport you never learnt to read?

And isn't the statement "rwk is all that matters, nobody races dynos" a bit of a contradiction, since every dyno reads differently. I would have thought it was rwk(w?) that meant nothing, and that it was all about Lap Times and ETs? Or am I missing sometihng somewhere that says if you run a 11s pass with 400rwkw you're obviously faster than the guy who ran a 10s pass with 380rwkw?

Edited by Hakai
SK, I have just ordered a nismo fuel pump and regulator "as pictured" along with a set of nismo 600cc injectors to strengten my fuel system and be in a position to upgrade to r34n1 turbos or other low mounts GTSS maybe for track and targa.. I have a standard R33 GTR except for apexi powerfc and boost controller which made 283rwkw post an exhaust change. My question is after fitting the regulator do you maintain the standard pressure as it now "guaranteed" or should you increase it and if so to what pressure.

I also call BS on 283rwkw with stock turbos. I've seen 250 odd a number of times. Doesn't really matter anyway unless you are trying to tell us that it's for real. It's only useful to you if you keep using the same dyno and operator as a comparative thing. I personally try to avoid dyno's that are known to give inflated figures because I would rather know the truth - or as close as is possible given the known drawbacks of dynos generally.

That said, with 600cc injectors and the turbos you are thinking of you will be fine to keep the stock fuel pressure.

seems like that dyno needs a tuneup!

It was done on shootout mode. Should be fairly acurate. My guess is that the blue line is stock boost, and the green line is considerably higher than stock boost. Was probably tuned on high-boost because if the temptation was there to raise the boost, then you wouldn't need a retune.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Yea that’s why I said ima test them with multimeter and see the reads.
    • Only at idle. Isn’t a problem when rev it seems.
    • @Haggerty This seems silly to ask, but are you confident in your ability to tune the Haltech?  
    • Next on the to-do list was an oil and filter change. Nothing exciting to add here except the oil filter is in a really stupid place (facing the engine mount/subframe/steering rack). GReddy do a relocation kit which puts it towards the gearbox, I would have preferred towards the front but there's obviously a lot more stuff there. Something I'll have to look at for the next service perhaps. First time using Valvoline oil, although I can't see it being any different to most other brands Nice... The oil filter location... At least the subframe wont rust any time soon I picked up a genuine fuel filter, this is part of the fuel pump assembly inside the fuel tank. Access can be found underneath the rear seat, you'll see this triangular cover Remove the 3x plastic 10mm nuts and lift the cover up, pushing the rubber grommet through The yellow fuel line clips push out in opposite directions, remove these completely. The two moulded fuel lines can now pull upwards to disconnect, along with the wire electrical plug. There's 8x 8mm bolts that secure the black retaining ring. The fuel pump assembly is now ready to lift out. Be mindful of the fuel hose on the side, the hose clamp on mine was catching the hose preventing it from lifting up The fuel pump/filter has an upper and lower section held on by 4 pressure clips. These did take a little bit of force, it sounded like the plastic tabs were going to break but they didn't (don't worry!) The lower section helps mount the fuel pump, there's a circular rubber gasket/grommet/seal thing on the bottom where the sock is. Undo the hose clip on the short fuel hose on the side to disconnect it from the 3 way distribution pipe to be able to lift the upper half away. Don't forget to unplug the fuel pump too! There's a few rubber O rings that will need transferring to the new filter housing, I show these in the video at the bottom of this write up. Reassembly is the reverse Here's a photo of the new filter installed, you'll be able to see where the tabs are more clearing against the yellow OEM plastic Once the assembly is re-installed, I turned the engine over a few times to help build up fuel pressure. I did panic when the car stopped turning over but I could hear the fuel pump making a noise. It eventually started and has been fine since. Found my 'lucky' coin underneath the rear seat too The Youtube video can be seen here: https://www.youtube.com/watch?v=uLJ65pmQt44&t=6s
    • It was picked up on the MOT/Inspection that the offside front wheel bearing had excessive play along with the ball joint. It made sense to do both sides so I sourced a pair of spare IS200 hubs to do the swap. Unfortunately I don't have any photos of the strip down but here's a quick run down. On the back of the hub is a large circular dust cover, using a flat head screw driver and a mallet I prised it off. Underneath will reveal a 32mm hub nut (impact gun recommended). With the hub nut removed the ABS ring can be removed (I ended up using a magnetic pick up tool to help). Next up is to remove the stub axle, this was a little trickier due to limited tools. I tried a 3 leg puller but the gap between the hub and stub axle wasn't enough for the legs to get in and under. Next option was a lump hammer and someone pulling the stub axle at the same time. After a few heavy hits it released. The lower bearing race had seized itself onto the stub axle, which was fine because I was replacing them anyway. With the upper bearing race removed and the grease cleaned off they looked like this The left one looked pristine inside but gave us the most trouble. The right one had some surface rust but came apart in a single hit, figure that out?! I got a local garage to press the new wheel bearings in, reassemble was the opposite and didn't take long at all. Removing the hub itself was simple. Starting with removing the brake caliper, 2x 14mm bolts for the caliper slider and 2x 19mm? for the carrier > hub bolts. I used a cable tie to secure the caliper to the upper arm so it was out of the way, there's a 10mm bolt securing the ABS sensor on. With the brake disc removed from the hub next are the three castle nuts for the upper and lower ball joints and track rod end. Two of these had their own R clip and one split pin. A few hits with the hammer and they're released (I left the castle nuts on by a couple of turns), the track rod ends gave me the most grief and I may have nipped the boots (oops). Fitting is the reversal and is very quick and easy to do. The lower ball joints are held onto the hub by 2x 17mm bolts. The castle nut did increase in socket size to 22mm from memory (this may vary from supplier) The two front tyres weren't in great condition, so I had those replaced with some budget tyres for the time being. I'll be replacing the wheels and tyres in the future, this was to get me on the road without the worry of the police hassling me.
×
×
  • Create New...