Need Advice - ATP

[Al]

I have heard nothing but good reports from ATP, and have personally seen a few cars running with Kyp's turbo's. My mechanic, for 3 years, uses no-one else when modifying turbos.

I would suggest that you contact Johnson Performance Centre which is in Lalor.  Highly regarded as one of the leading modification workshops in Melbourne and my personal experience has been fantastic.

"highly regarded" by who? :confused:

In all my time on this forum i have not heard of this workshop. It is great that they have treated you well, but please don't glorify their reputation without justification.

[R31Nismoid]

Al, JPC is in Thomastown, they had the fastest VL for a while or something not far off it.

They are no new-comer to performance. Whilst i havent had a positive (or cheap) expiriance with them they are still up there in terms of good workshops.

[Roy]

I've had an ATP stage 2 highflowed turbo in my 'line for about a year now......great power gain for the money ...

Very nice power, nice and punchy...i was so depressed getting back in my RB20 after a drive in your car:(

As for JPC, coming from Sydney, they are a big, well known turbo performance shop that have been around for ages and prepare a lot of tarmac rally cars etc etc. No personal experience with them, but they are pretty close to me so im thinking about giving them a go. Best advise is talk to a few workshops and decide for yourself who you are comfortable using.

Back in Sydney i rated BD4s, top workshop, but others had different opinions, sadly thats how it seems to work in the workshop scene, fans and critics:(

[blur:R]

I'm not quite sure how big they are in melb, but i only managed to find a handful of posts mentioning them. I did find this on autospeed.com.au tho:

http://www.autospeed.com.au/cms/A_0726/article.html

Whether or not it's relevant is questionable.... but at least they're doing something in their spare time...

[SKY031]

If anyone would like some more feedback about one of the companies mentioned above (i won't mention which one, Just Pacing Carefully) please PM me for details.....

~K

[GroundRun]

I've been considering this for some time, would be VERY interested to see end results.

Hey guys car's finally done, this is the result:

At 15PSI [about 1 bar] The usual case ran outta injectors. Power delivery is great tho. Very happy with the results. Hope this helps any 34 owners.

Nick

[adznight]

Top work mate, thats really helpfull

Got a dyno sheet before hand? What mods are you running (engine, ECU and exhaust etc) You could PM me if you don't want to post them. Cheers!

Looking at the outright power your making it doesn't look to be much higher than a stock turbo but the power curve seems to climb a lot quicker so I'm assuming that it's pretty quick off the mark? How much of a difference would you say?

I'm making around 200kw-205kw on the stock at the moment, I'll try and find a dyno sheet to compare the power curves unless you have one

[adznight]

Hehe, just noticed you DO have 2 sheets overlayed there. So you had the stock on first at stock boost yeah?

[GroundRun]

Nah thats just the one. YEa the thing that holding back me achieving more power is the fuel delivery system. Just not enough fuel, have to upgrade the injectors and pump. Probably not going to play around with that just yet as I have no money but a future goal of mine is that.

Previously I got about 188rwkw on my stock turbo at around .95 bar. That was pushing the stocky and i proved that at heathcote, oh well. Kip reckons that this turbo is ok running 230-250rwkw but then again thats after the upgrade.

Ok this is the deal right, off the mark the car seems slower, there is a fairly noticable amount of lag, I HATE IT. It really sucks u into the seat after 3500rpm whereas b4 at 3000. So its about a 600-800 more revs. I do have a dyno sheet with the stock turbo but i'll have to find it.

Mods:

Cat BAck

Front pipe (standard dump and cat)

Frount Mount

PFC (I used letters on purpose)

Boost controller.

Panel Filter

Current Power 206@wheels (highflowed) = Previously 188@wheels (stockturbo)

DOnt know if this is good or bad but hope this helps others.

Nick

[GroundRun]

Hehe, just noticed you DO have 2 sheets overlayed there.

Pretty sure one of them (lower one) is the torque reading.

[paulr33]

off topic surely you can changer your turbo and its not in "epa violation" what rule states you have to use the stock turbo? just like a v8 would change its cams or bore it to out to bigger capacity etc. sure it has to pass emissions and pass the db rating, gas emissions with the probe up the zorst etc etc

but an rb25 with a gt30 or a the stocker turbo surely wont make an ounce of difference for the epa guys. the only way i could see it making a difference is if when they do the probe / emissions tests your controller is set to 1.3 bar and the ecu munges up all the emissions, surely you wouldnt leave it at 1.3 for an epa test?

and even if they do see a nice HKS gt turbo attached how does that mean its worse to the environment that a the stocker garret gt25, also to the fact that the hks turbo is made by garrett anyway

i cant understand why the epa would say "no you cant do that" for a turbo change?

[GroundRun]

From what I understand any mod in a car that changes the A/F ratio changes the amount of emmissions the car produces. And in order for you to get away with this is to get an engineers cert, which isn't cheap.

The last time I went in there for an inspection which was about 2 months ago they hooked the car up to this little portable device they had. It check a whole heap of things and compared it with the stock settings which that device had stored in its memory.

I dont make the rules but we all have to follow them, no matter how stupid they may seem. I mena look at the ban they have on BOV's, how does that pollute the enviroment? Noise pollution you say, look at all those Harley's,I heavnt heard one that under 120db. The law is the law, what can we do about it, nothing, all we can do is bitch and moan about it to others on forums. LOLZ

[adznight]

Thats right, the simple rule is that any modification that changes the consistancy of the gas from the exhaust is a no go unless it's EPA'd and cleared. So change AFR and things like that (with a new bigger turbo as if this wouldn't be done) are all no go's.....so they say

On the BOV side of things the reason they recirculate the gas (not air) is to burn off excess vapours etc, if these are vented to atmosphere then thats another EPA no no, it's not the noise that they are worries about.

I'll track down my last dyno sheet and scan it in, would be good to compare the power curve's etc since we have such similar mods and the same power output.

[Roy]

If this thing drives anything like Anthonys car it is bound to be a good thing.

One interesting thing though, for all the ppl that say RB20s are laggy hoes, at 4,500rpm you have a 20rwkw head start:(

AT 4,500rpm 155 vs my 134rwkws:(

But at 5,000rpm i make 198rwkws vs your 170rwkws,

5,500rpm im making 222rwkws vs 180rwkws

6,000rpm im making 205rwkws vs 200rwkws

Youd smash me in the low rpms range, but get the thing on song and they shoudl be pretty even, mmmm interesting:)

[GroundRun]

ROy, mind me asking what turbo you have?

Adzmax, what dyno dyno'ed your car?

[adznight]

Was dyno'ed at Ice Performance and a dyno day at Selectmaz I think it was.

[Roy]

ROy, mind me asking what turbo you have?...

Ive got a TD06-20G, essentially a 420hp plain bearing turbo, running about 17psi.

Looking at those dyno results im very suspicous of mine:( No way my car would keep up with Ant95GTRs car, but based on those values youd be excused for thinking my car was half a chance. :confused:

[halz]

Can I ask how much it ended up costing? I have been quoted significantly more than $1500 for 450hp high flow from GCG and I am located in Melbourne so ATP would be more convenient! Any other comments on the service? I am currently running 195rwkw on the standard turbo at 11psi and the bearings are now very noisy

[R31Nismoid]

so you got a hi-flow... and 20rwkw out of it with a couple extra PSI?

IMO - not worth the $$ paid for it

[GroundRun]

R31 Nismoid, not really looking at the bigger picture. Ok look at it this way, say i still had the stock turbo, and upgraded the fuel sys. The power output probably would be around the same as I have now but who can say how long the turbo would have lasted as it was being pushed already near to its limits. (this is beside the fact that it was blown so i had to make a choice)

But if i upgraded the fuel del sys now I could easly get another 30rwkw on top of what I already have now, safely. So say I had around 230@the wheels, would a gain of about 50rwkw be worth $1500? Plus the best part EPA can't really do much.

Halz: yeah i'm pretty happy with the service and turbo i got. Your best bet since Kips is one busy dude down there is to have your own workshop take the turbo off and just bring that to ATP, the job will get done a fair bit quicker. Best thing is to talk to Kip as see what he ask you to do.