Abx

iTrader: (15)

Not sure what offset my 330 rims are but they always seem to stick out a little more than the GT1's etc, mine is on Prodrive springs to give you an idea, think Stan may be running spaces on his Turinis and had to also fit longer studs which could be a PITA.

Not the best pic but gives you an idea of the ride height, IIRC front dropped by 10mm and rear by 5mm so not a huge drop.


And an idea of front/rear offset (before lowering)

scooby L

Yes they look a good 10mm further out than my BBS's...

A lot of camber on the rears? That standard or have you had Iain do a fast road geo on it

Abx

iTrader: (15)

The rears in the pic were std settings, have fast road prodrive settings now and think they are about the same, don't reacall seeing a massive change on the printout.

Rheid

iTrader: (1)

The BBS and the 5 spoke lusterics have the same offset of 55mm, GT1s are 53mm so "stick out" 2mm further.

scooby L

Cheers Rheid

I've got some un-used 10mm spacers in the garage but they're not hub-centric, I've been looking at some 20mm hub-centric ones (with longer studs) on ebay but the hub diameter is 73mm which sounds too much... Do you know the alloy spigot diameter for the 2008 Impreza?

scooby L

It must be the arch flare not the camber then, prob the camera angle.

Cheers Arron.

winmoz

Arrgh, have picked up a stone chip in the leading edge of the bonnet - has exposed the netal and is already going rusty! Will see what the dealer suggests.

Also under full boost (say when joining a motorway) a rapid "phhtt, phhtt" noise can be heard from the engine bay and the car feels as though it is momentarily cutting a little bit of power - almost as if the traction control were firing on and off rapidly.

If it were a boost leak would I not be able to hear it more of the time? Annoyingly I tried to recreate the issue this morning but ran out of road before I could make it do so.

Am off to the dealer tomorrow and just know that when their technician sits in the car I'll not be able to repeat the issue to demo it to him.
Anyone got any clues? Could this be an unwanted by-product of the PPP?

Cheers

W

scooby L

If it did that with me I'd back off..sounds a bit like either boost fluctuation, or bad fuel causing a bit of hesitation due to minor detination...

What fuel you using?

Any hesitation isn't good, it's the ecu backing off the advance because it's not 100% happy about something..I'd not do it too much..just tell the dealer it's backing off under WOT

vulnax999

iTrader: (7)

My PLX Kiwi wifi gadget arrived this morning.


Bought Rev 2 for the Ipod Touch at weekend.

Got a screen / dash mount for the Touch, so all set!


Given up for now trying to get the readout on the in car DVD screen when moving!
Sorted - side vent mount, works well, visibl;e if hand not in way!
Working through the settings and display options in Rev.


PS - if I get an ipad I can mount it like this!

http://yfrog.com/iy4d1j

Rheid

iTrader: (1)

Hub spigot is 56mm. Worth checking to see if your wheels have pre-installed hub centric rings, 73mm is a really common size.

My Prodrives for example are actually 73.1mm but use 73.1mm - 56.1mm rings so would work perfectly with the 20mm spacers you mention by simply not fitting the rings.

HTH, Neil

winmoz

Car is always run on Tesco 99, Vpower or BP Ultimate. Last time it did it was over the wekend on a Vpowered run down to Cornwall.

Thing is, it doesn't do it all time on WOT.

StanS

iTrader: (3)

I've got 5mm spacers on the front (left from when we were trying to get the BBS rims to fit over the Alcons) with std studs. Rears no spacers.
When I get the car back I'll look into some spacers/studs to push the rims out a little more.
I think 5mm is OK with std studs - any more and longer studs needed !

rb5 286

iTrader: (2)

i have had something like that , when towing it there a couple of pops n crackles from teh zorst whilst on hard acceleration but dont feel it cutting or anything and notice a noise like u say from under the bonnet, or downpipe???

scooby L

Strange V-Power highlighted those symptoms, of the 3 that's the most stable, (with BP being a no no from my personal past experience).

is this happening when you're accelerating quite hard in a high gear (ie 5th gear perticularly)..if so (and I'm assuming the PPP car shares the 330s issue) then boost spiking has been known to trouble the 330s & could cause these symptoms...

urban

iTrader: (1)

Actually that does look good
Where did you get that strip from?

scooby L

I have been looking at these Stan.. trouble is the "These spacers will only fit alloy wheels which have an outer bore of 73mm" quote worries me.

http://cgi.ebay.co.uk/Subaru-Impreza...item20ade2182e

winmoz

This sounds like it! 4th and 5th gear are the main culprits - pretty hard to recreaet on anything other than a motorway.

If so is there a cure or is it a mapping problem?

Cheers

W

scooby L

That I do not know.... the best way would be to get it mapped out... but then warranty is shot to pieces...

Dealership solution would be to either get prodrive to look at the map and tweek it accordingly... or stick a bleed valve in (I think that's the name of it)

StanS

iTrader: (3)

Don't know which spacers are on mine - Iain L fitted them when we were trying to sort the rim/brake overlap ! I assume they are OK as he fitted them. You could ask him what he uses ???

winmoz

Cheers for that.

Will be interesting to see what my dealer makes of it all tomorrow.

W

vulnax999

iTrader: (7)

I wondered what the boost was on the 330S - now I've fitted the REv2 s/ware it comes out as 20 psi peak in 3rd!!! that's what, 1.43 bar??

Hmm what does it go up to after a remap?


This didn't seem a spike, stayed at 20 psi while hard acceleration, dropped to about 18 psi by rev limit at 6700.

silver demon

Halfords £2.99 5mm width

scooby L

Standard boost is 0.9bar (13psi)

330s is about 1.1-1.25bar (15-18psi)

1.45-1.5 bar is what Rob was running to get 380bhp

Dunc's mapped mine to peak at 1.3bar and hold 1.2ish

If your REv2 is accurate (& I hope it's not) and you're running a standard map... then you're gunna be running VERY lean mate...

vulnax999

iTrader: (7)

Ta!

Thought it was a bit high ... possibly the Rev 2 ipod app being a little off, but it does take the cars OBDii data....

I need to do a few more measurements, likely it will peak at 16-18 psi and was a spike to 20... although did stay there for a few seconds during hard accelleration!
I'll look at the inlet manifold pressure too, should give an idea although of course the air is being released into the cylinders from there so will be less pressure....

The ECU should compensate for the extra air by increasing the fuelling, upto the limit of the MAF reading and / or the injector duty, so "should" not be lean ... I hope!


I know a couple of people here and the GR hatch forum use rev ( e.g. RB5 286 - any help here! ) perhaps they can have a look at their boost on Rev / ipod/iphone?

Thanks


EiIther I have a good one or a problem one!!!

scooby L

Hope it's a good one pal

Trying to understand how Dunc was mapping my car with his software.... it was mostly torque requesting at rpms... not like when Bob mapped my 2003 STI which was fuel mapping... so I hope you're right, and the ecu will recognise the additional boost and increase fueling accordingly.... it's all different for the new car apparently.

vulnax999

iTrader: (7)

Hmmm true... my understanding is from classics mapped by Andy F or JGM.

Engine has a load, ecu works out ignition timing to suit and adds fuel based on air flow from MAF volts. very basically.


If new car works on different logic then I dunno, but must be similar idea.


Maybe a mapper will be along and tell me I am wrong!!!

winmoz

I have the Rev 2.0 app on my iphone so will check the boost and MAF readings tonight on a test run. Was looking to see if it can report on detonation but it seems it doesn't.

Am now working on the assumption that my PPP equipped Type UK STi is bleeding boost through the re-circulation valve at peak boost which is cause the ECU to back of the throttle to reduce exhaust volumes and therefore boost? The noise could well be the valve and turbo "chattering"?

Not holding out much hope for a dealer solution tomorrow, if diagnosis is failed will think about getting the car on a rolling road and have a good map writer have a look. Will then go back to the dealer and tell them how to sort.

Ironically I chose the STi and PPP because I wanted to keep a warranty on this car (having gone down the aftermarket tuning route on my previous motor). Now it seems I have paid a premium but not got reliability!

W

vulnax999

iTrader: (7)

Cheers mate.

Should be easy enough to change the recirc dump valve at the dealer, and check hoses for leaks, and from their diagnostic s/ware look at any odd ECU readings on a drive, as a road mapper would do.

higher gear = higher load on engine, and if WOT in high gear at low speed / revs, really thrashesthe engine... could be det???

What i-mode are you in when it happens, and does it do it in the others?


You can check all this on Rev, and ing advance too if you can log it.

vulnax999

iTrader: (7)

PS Winmoz, I mailed DevToaster re: Rev2, and asked if they can do det on next update ( as we have the sensor I expect, old scoobies did ), can they add a max hold on boost, inj advance, MAF flow etc., and air fuel ratio / Lambda, again we have the sensors.

Might be worth all Impreza etc. owners with Rev to mail and ask for these .. they would be useful I think!

ballsie

iTrader: (4)

I spoke to Iain about 5mm spacers and he recommended just the halfords / ripspeed ones.

Fitted them last weekend and i'm fairly happy with them.

Think i need another 10mm front and back tho.