Jump to content
SAU Community

Recommended Posts

is there any way of telling if its a cam gear slipped a tooth appart from taking off covers? I would have thought this wuld make the car drive like crap as well.

May take it down the quarter soon to see what it gets. Then decide if i should get shift kit

  • Replies 101
  • Created
  • Last Reply

Top Posters In This Topic

you can get the shift kit with filter kit from MV for like 400$ then ill just fit it not a bad price.

Went down to allfast torque converters and they said about 1350 for a 3000rpm histall as well. But yeah don't know if ill ever go that far

I only threw in the cam gear comment as a general example of a possible cause. It isn't very likely.

How much power did the car make with the old turbo? And when was the stock turbo hitting full boost and what boost were you running?

  • 2 weeks later...

I just thought I'd come back to this one.. seeing as similar situation

Today I ended up getting only got 178rwhp in my R32 with RB25 highflowed turbo @ 16psi, turbotech boost valve, SAFC, fmic, nismo fpr, gtr fuel pump, and 3" full exhaust system.

The same turbo made 230rwkw (300rwhp) on an RB25 at 16psi... so it seems like a very similar situation to yours Anton. Decent turbo - but just doesn't seem to pull the figures on an auto RB20.. Maybe the turbo needs 20psi wring into it to really pull its efficiency range (wouldn't trust that on a stock rb20) ? and probably it requires proper management. But of course PowerFC won't of course run with auto...

Mind you it was about 30 degrees.. not shootout mode and that dyno reads quite low... but still, even if you add 10-20% for that, there is something about auto r32 that is funny here. You'd expect higher, and the engine has high compression and no other signs of ill-health. While the SAFC is not an ideal solution, you wouldn't think it would hold it back as much as it has.

Car feels pretty fast (and maybe is), so i'm not too disappointed... anyhow, thats enough rb20 for me. Will leave it as is for 3 months or so then rb25 + manual gearbox + powerfc is going in..

rb20 + auto :P bad combo..

and probably it requires proper management. But of course PowerFC won't of course run with auto...

It will make a difference however has the standard ECU been remapped? as this could help it out quite a bit, got a dyno graph with A/F ratios on it? is it losing out on the top end or all over the spectrum?

To add to this, we relooked at the tune on a cooler day and got about 250rwhp ( I think) out of it with a bit more adventurous timing and a little more boost. We tend to try and run a conservative package in timing if possible but Anton seemed a little disappointed with the previous result so we try to please.. :D

The auto basically gave up the ghost with the clutch packs/bands starting to smell after a few runs.

Anton seemed happy when he left and I hope the auto is still driving :)

Cheers

Ken

Anton, Drop a R32 5speed in it.. They are dirt cheap. :)

Look in to the patrol clutch, they are cheap and an upgrade over std, I'll assume they would be good enough for 200rwkw.

Manual... Better fuel economy, better life out of your brakes. Do it. :D

yeh, the gearbox are fairly cheap..but the rest are the fiddly bits and some are hard to get hold of these days.. minimum $1k + labour to get it done. anyhow, good luck with the quest anton for manual parts if you decide that route.

It will make a difference however has the standard ECU been remapped? as this could help it out quite a bit, got a dyno graph with A/F ratios on it? is it losing out on the top end or all over the spectrum?

mine feels very strong.. at least 40-50% more power than stock and when it comes on boost you know about it.. so I'm not sure of the dyno reading.. a/f ratios are nice and even around 11.5 near the top end, and at least I know I can give it a hammering in the heat. Power just flattens off at the top and that is where it stays... will post a dyno sheet later.

Going to give it a drag strip run, that will give me a better benchmark..

I think really to get any more power out of mine (or any other highflow rb25 turbo for that matter), the answer would simply be more boost, and lots of it... at least 16psi+

I always forget about the labour side of things as I do everything myself. :D

But if the auto is shagged he is up for the cost of removal/install anyway so it may be a good time to consider the swap.

RB20's do indeed need lots of boost to get the air in past those small valves.

Edited by Cubes

You just need the stage 2 shift kit from MV in Adelaide to fix the hitting rev limiter problem.

I've had my auto for almost 2 years and I don't baby it. The only problem was hitting the rev limiter from first to second and slow gear changes. It was more obvious once I've put on a 3" exhaust. Once I put the shift kit in the problems were gone.

Also, the power you're makin does seam a bit low.

Mine has full exhaust, cooler, pod and stock rb25 turbo running 14 psi and makes 168 rwkw on a conservative dyno.

ECU chip is next.

Edited by nedb

just a comparison on the r33 auto cars, im interested in what other people are getting with there cars and what they have done to it. I have a 3" exhaust with split pulse dump pipe, 10.5 psi with GBF bleed valve, SAFC2 tuned by Hyperdrive, standard auto, standard cooler (soon to be fmic) and im getting 215rwhp and 1/4 mile of 14.7 at best.

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

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...