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New Turbo is here - something else a bit shiny!

GPF

New member
As the title says!

Can you guess which one it is? [:D]

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It's from SimonP at SPS Engines - thanks Simon [;)].

I'll add more photos in Photobucket (link in sig) - "SPS BB Turbo" album.

This thing is going to look really cool bolted up to the shiny 3" downpipe! (until it all get covered up and buried of course! [8|])
 

ORIGINAL: barks944

Niice, so is that using the hotside from the K26/8?

Yes, but machined out to take whatever Garrett turbine wheel Simon specced. He said that, using the kkk nomenclature, it's about the equivalent of a #9 now.

Despite the Turbo Dynamics compressor housing, I believe all the internals are Garrett, including the double ball bearing CHRA.
 
Can't wait too see the results, what kind of torque curve have you specced it for? Your car looks great btw! Cup mirrors, removed side strips and a bridge spoiler is exactly what I'm going to go for.
 
Thanks [:)].

I just specced it for as much power as possible without losing any spool-up. Hopefully it will therefore spool about the same as the SFR it is replacing but have more in the upper-mid to top end. I also wanted to run higher boost levels without increasing back pressure.
 
Ooooooh shiney Bling [8D]

Looks and sounds very similar to the one Simon did for me. You will not be disappointed with the way it spools up, the attention to detail is superb and makes for a very lag free delivery.

Did Simon supply an oil restictor too. We found with mine that performance was improved by reducing the oil pressure at the turbo to around 2.5 bar of pressure which is obviously much lower than our engines generate at full beans. The Garret website has the technical reasons for their ball bearing turbos here at FAQ #16

http://www.turbobygarrett.com/turbobygarrett/tech_center/faqs.html#t16

Apoligies if Grannies, eggs and sucking are already in play [:D]
 
Simon supplied mine with a restrictor built in the oil supply line so I would guess he would now supply all his DBB turbo with it.

Nice stuff anyway, just makes me want to build another engine [:D]
 
Hi Paul,

Yes he made up a new oil supply line with a restricter in the union, and no apologies required [:D]

Yours may be similar, but I bet it's a bit bigger! Is yours a ported shroud as well?

Can't wait to get it all back together now, but as I've been waiting for bits to arrive I keep taking things off to clean, refresh or modify that make sense while I'm "in there" so there's quite a bit to put back now!

Plus an awful lot of what look like small empty plastic bags from the OPC that do actually have a small o-ring, seal or gasket in them!

Speaking of which, I took the crossover off on Saturday so I'd better order a pair of the sealing rings before I forget. [8|]
 
ORIGINAL: GPF

Yours may be similar, but I bet it's a bit bigger! Is yours a ported shroud as well?

I'm not so sure it's bigger. One of the main things I was paranoid about was ending up with too much lag so I asked Simon to spec it so it spooled as quickly as possible. In hindsight we probably went too small because the extra grunt of the 3.2L could easily have handled a bigger turbo and still not suffered with lag. It does have a ported shroud and from memory I think he said it was equivalent to a KKK #10 hotside. What I do know is it has a 4" intake which means it's blummin tight getting it to fit next to the alternator

Good news re the oil restrictor - you'll have a blast when it's all fitted [:)]
 
Now that there is my kind of shiny! [:)] Prepare for your turbo dreams to be answered. With the rest of the kit you have on your car it should be just what the doctor ordered.
 
I have struggled for time a bit over the last few weeks so progress has been slow - plus I keep finding things that would be good to do "while you're at it"

Here's a couple of pics of one of the things I wanted to do before fitting the turbo.

Those of a nervous disposition may choose to look away now [:D]

Looking at the hotside, it has a sharp step in the exhaust inlet port (as all kkk hotsides do) that blocks the exhaust coming out of the crossover which is actually a larger diameter.

So, I took my nice shiny new turbo apart and attacked it with a grinder......


Turbo with kkk #8 hotside showing the step inside the port.

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Here is a shot of the offending step - the crossover seals on the flat of the flange and as you can see from the marks, the opening is larger than the first opening, never mind the stepped one.

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Turbo with hotside removed

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Hotside opened up and step in process of being removed

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All back together again - after thoroughly cleaning filings from the hotside

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Will it make any difference? Well it can't hurt and must cut down turbulence. Hopefully it will also help flow and reduce back pressure a tiny bit.

There are a few more photos in Photobucket (link in sig) in the "SPS Turbo Modifications" album.
 

ORIGINAL: John Sims

Loving the kinky wrap. [:D]

Long overdue update!

I didn't get too much time to spend on the car in December - plus it was damn cold in the garage - but I eventually finished all the peripheral jobs that I wanted to do while the turbo was off and got the new turbo fitted just before Christmas - so still in time for the weather to make road testing and mapping just about impossible.[8|]

Been out in it this week though and it's certainly different.

The first evidence was the boost controller completely losing the plot. The Apexi AVC-R needs it's start duty to be set up somewhere in the ball park before it can adapt and then learn to control boost correctly. The new turbo is different enough that the Apexi's previous settings were so far out that it couldn't learn fast enough to get hold of boost at first.

Resetting the start duty and letting it "Learn" has now fixed that though - and the second evidence of change is now a scary lack of traction in anything slightly damp![:D]

My AFR's were also quite different (lean) so I've quickly remapped the WOT fueling just to get it safe, but I'm going to remap all the fueling & timing from scratch anyway.

I also added 2 extra knock sensors while the inlet was off and fitted a Link KnockBlock for logging knock, and a Link KnockLink for visual warning. These will hopefully come into their own when mapping the new setup.

The kinky wrap went on just fine, although time consuming and a bit of a PITA - don't know if it will make a difference but it looks cool! And yes, you can do this with the exhaust manifold in situ, but I think it would be very difficult if the crossover was still attached.

As you are all probably suffering from Shiny Withdrawal Syndrome, having just taken your Christmas decorations down, here's a couple of piccies......

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I also did the underside on the inlet manifold with heat reflective tape from the same place.....

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Again, don't know if it will work but it can't hurt!


I also finally gave in and did away with the factory airbox and snorkel.

I made space behind the offside headlight by getting rid of the ignition amplifier and headlight bumper brackets and fitted a Pipercross Venom enclosed filter and cold air intake using the existing hole in the inner wing.

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Being enclosed, the Venom is nice and quiet - there is no "sucking/induction roar" that I associate with cone filters so I'm quite pleased with that - plus it's only pulling cold air in like the factory snorkel. It is a bit of a tight fit though. (I'll add a photo later - I thought I'd put one in my photobucket albums, but obviously not.)

For the time being I have just used the 3" flexible ducting that came with the induction kit to connect this direct to the turbo and so have not plumbed in the breather or dump valve outlet yet - I need to get something fabricated with those connections and then plumb it in - any ideas?

At the moment the DV vents straight to atmosphere and it's surprisingly noisy! Not only between gear shifts under boost, when it's really loud, but even just gently driving around you can hear the thing breathing out as you come off the throttle a little - it's really weird!

More photos in my photobuckup albums (link in sig) for anyone interested.
 
Where did you put the extra knock sensors?
Any pics of the Venom intake?
 
When I setup my apexi I setup the duty cycle manually based on RPM, takes a bit of tweaking and best done by a passenger as you drive! Good idea to put the reflective tape on the manifold, shall be doing the same!
 

ORIGINAL: TTM

Where did you put the extra knock sensors?
Any pics of the Venom intake?

That's funny, there's a bloke looks just like you in the other thread!

I put the knock sensors on the block either side of the factory one - there are 2 threaded bosses just waiting for them, they are even the same diameter as the standard Bosch knock sensor!

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I'll put some pics of the intake up when I get home tonight.
 
ORIGINAL: GPF
I put the knock sensors on the block either side of the factory one - there are 2 threaded bosses just waiting for them, they are even the same diameter as the standard Bosch knock sensor!

Ok, thanks.
I never checked on my S2 by I think this is where the 2 knock sensors are mounted on the S2 & 968.
 

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