Wastegate Actuator Mod

[Kinks]

my car hits 14-15psi at 3000 but drops back to 10-11 at redline. pod, fmic, nice big intake piping, turbo-back exhaust. turboxs bleed too. i'm considering a different actuator, EBC or autospeed boost controller (altho i doubt it would hold it any better?)

[EnricoPalazzo]

well fyi, i thought from changing to a bleeder to a ebc, it would be heaps better, but in my case, the ebc was the same as the bleeder. So ive put the bleeder back on, and am gonna sell the ebc, and buy some sort of wastegate actuator.

[Jay95R33]

I think thats a sure sign that it's the wastegate

I dropped HKS in the US an email on Thrusday and asked them for a few details on the actuator - hopefully they will reply soon.

J

[Gizmo73]

Very interested in what they have to say...

Thanks for the info Jay...

Hey - im a poet and i didnt even know it !!

[Zombie]

I tested out my boost holding capabilities last night, it seems to hold 15 pound, but does drop off to 13.5psi or so somewhere high i the revs.

It is hard to watch the boost gauge, tacho and the road at the same time hehe

I will try and get the datalogging going and see if I can get a read out some time this week

Adam

[Guest Robo's]

Well ive got the intercooler coming this week, im loosing at least 2.5 psi drop off. Maybe the cooler might help me a little, but i would still like to fix the problem. Come on Actuator

[Sydneykid]

Hi Zombie, got a video camera? Point it at the dash and go for a drive. Then watch it in slow motion, you pick up heaps of stuff that you miss when doing it live.

[Jay95R33]

Enrico - did you end up ordering one ?

I haven't heard back from HKS USA, so stuff'em !!

I sent Greenline an email to see if they have anymore details on it - they are usually pretty good about getting info etc....

J

[EnricoPalazzo]

ive already got the details about the hks actuator, sorry i should have posted already/

Hi Dean,

Hope you are well. Pricing information as requested:

HKS Actuator Update Kit R33 GTSt: 11,384 yen

Shipping: 2,500 yen

TOTAL: 13,884 yen AU$170

Notes: The above actuator is rated for use 0.8 ~ 0.9kgf/cm2.

I didnt end up gettin it cos one came available here, yet the person sellin hasnt mad any contact since he posted it for sale. Anyway i have no money atm, so will have to wait a while before i get this.

[Jay95R33]

Ahh, cool.

Damn, I didn't even see the one that was for sale on SAU

Did they tell you if the HKS one was adjustable or not?

J

[EnricoPalazzo]

nah not adjustable, however he said it can make the stock turbs run 1bar to redline

[Jay95R33]

Cool - that would be nice

I think 0.8 - 0.9 kg works out to be about 12-13psi isn't it ??

That's pretty good, and pretty much smack on what I'm looking for. I suppose if you were really keen you could bleed off 1-2psi to get to 1 bar. But at least you would drop boost like I am

J

[Guest Robo's]

Let us know how it goes guys, im keen as well

[EnricoPalazzo]

when i get some money ill let u know how it goes.

[Munna]

when i get some money ill let u know how it goes.

Does any body have any info on the wastgate actuator for R32 turbo ive heard it doesnt open til 10psi.

Is this true?

Would it fit in place of the r33 item?

Anybody else done this?

HKS one is cheap enough but im not keen on running 12 - 13psi with standard intercooler/turbo. Plus anymore the 10psi and my engine seems to ping on hot days. Gets to over 40 deg there in Horsham.

[Sydneykid]

Does any body have any info on the wastgate actuator for R32 turbo ive heard it doesnt open til 10psi.

Would it fit in place of the r33 item?

Anybody else done this?

HKS one is cheap enough but im not keen on running 12 - 13psi with standard intercooler/turbo. Plus anymore the 10psi and my engine seems to ping on hot days. Gets to over 40 deg there in Horsham.

Hi Munna

Is this true?

**Yes

Would it fit in place of the r33 item?

**Yes

Anybody else done this?

**Yes, many times

anymore the 10psi and my engine seems to ping on hot days.

**You have a tuning problem, too much ignition advance or too little fuel. I strongly suggest you get it tuned properly.

Hope that helps

[Jay95R33]

Like your new picture SK, looks good - is that your track GTR?

[BOOSTD]

Dean: I found that boost drop on the standard turbo was caused by a combination of reduced ignition timing up top (which reduced combustion pressure and exhaust flow) and the turbo being unable to flow any more air because of high back pressure and cylinder back filling at high rpm. The Vg30 exhuast housing with no other mods on the Rb25 turbo held 15psi to redline. I actually locked my wastegate closed and my RB25 turd and it still still didn't hold boost.... hope that helps

[Munna]

Hi Munna

Is this true?

**Yes

Would it fit in place of the r33 item?

**Yes

Anybody else done this?

**Yes, many times

anymore the 10psi and my engine seems to ping on hot days.

**You have a tuning problem, too much ignition advance or too little fuel.  I strongly suggest you get it tuned properly.

Hope that helps

Thanks Sydney Kid one more thing

where can I get one from?

[Cubes]

Munna,

The usual place where you get import parts from.

Forums, Wreckers etc.