dream3R's R Project

[M-R-P]

Some say the closer to the throttle the better but I know of a few people running their BOV on the OTE pipe with no problems at all.

Down to personal preference I suppose. The air in the throttle pipe is gonna be cooler than the air in the OTE pipe so might be better for the BOV to keep the hot stuff away.

[Dream3r]

Thinking about it I agree about the throttle pipe and air temps, also the IAT sensor is downstream of the said pipe, it makes sense to recirc air that has just been measured, rather than vice versa.

[M-R-P]

errr.... yeah, that too

[Dream3r]

Then again, it seems good enough for IPD. Too many choices!!!!

[M-R-P]

Let time and money guide you and do whatever is cheapest

[partsforvolvos.com]

I thought it was closest to the throttle body to keep the air moving in the same direction up toward the intake.
if you fit the valve mid way along, the air coming out of the turbo toward the valve is ok, but the air that has already past the valve could flow backwards defeating the object of keeping the turbo free wheeling.
obviously an engine requires intake air to idle off throttle, but its only a fraction of full flow.

for the same reason having a recirc valve on the turbo is ok because it prevents the stalling and can freewheel.

it comes down to available space sometimes hence the do88 lower pipe not being able to be used with the original airbox and probably the same reason for the ipd pipe having it on the ote.

[oblark]

My bov is mounted on the turbo to intercooler pipe, it runs and boosts perfectly ok .

For a bit of bed time ready look up my thread "pros and cons of dumping hot air"

[Dream3r]

I only want to-do it once, hence wanting something welded. I guess the OTE will be the easiest.

The do88 pipe, I can't understand it, 38mm outlet when their BOV is 25mm. I guess you don't have to weld the bung so it's in the way of the airbox snorkel, but I guess this was only an issue with the R style airbox, hense why do88's is like that.

Thank guys.

[Dream3r]

OK so I'm going for a custom throttle pipe with bov outlet, courtesy of Graeme.

Thanks for the input guys.

[Dream3r]

UPDATE time

New mods:

Cavalli - 'drop-in' Turbo CTB30VR
GWE - Custom 3" ETM Pipe with the relevant connections for WI and RECIRC valves, powder coated black
GWE - Custom 3" Turbo Inlet pipe
Turbo Smart RECIRC/BOV piston operated valve.
It's running and pulled like a train and popped a hose, after some surgery everything seems ok but we noted it had also blown a CV boot, so another thing to-do, tomorrow!

Once everything is 100% the tuning will start, but I'll be limited by the stock clutch at present.

Turbo - sounds like a bus turbo, weird super charger noise at low RPM, I'll get used to it, no real data yet until the mechanics are 100% but it seems to spool at around 3k then almost instantly be at 1.5 bar.

Thanks to Graeme and Shem for their help. (UNDERSTATEMENT)

There were a LOT of fitting issues (drop in part needs work for VBAND users) , but hats of to the supplier for making it right so far, at present the OTE doesn't fit very well but that is being replaced.

Next is clutch, has to be I think.

Full spec for the sake of completeness:

Shimmed 2.5l block
New cambelt
47k miles
ipd ARBS
Stainless brake lines
New stock Volvo pads and discs
Mehle droplinks and top hats
Prosport boost gauge in CF pillar mount
3" DP with 200 CPI magnaflow cat
feritta Catback
17" pegs with a full size spare.
RTI, Phone (££££e)
Volvo Bluetooth
reversing cam
shem strut mod
Poly wishbones
Rear digital TV and dvd etc
45mm klracing IC
AEM progressive water injection
750cc injectors
Cavalli - 'drop-in' Turbo CTB30VR
GWE - Custom 3" ETM Pipe with the relevant connections for WI and RECIRC valves, powder coated in black
GWE - Custom 3" Turbo Inlet pipe.
Oil, Plugs, Filters, etc.
Turbosmart dual bov with trumpet removed.
Black silicone!


Angle gear has been out and collar looks good.

TODO

Clutch upgrade.
Many many map revisions.
Uprated oem tcv (new pierburg oem design).
cv boot.
Fix some broke interior plastics.
good clean!
RS4 maf with custom airbox adapter.
Snabb OTE pipe and adapters (might powder coat this first).
Maybe a 3" custom zorst system.

GWE did the custom stainless piping (powder coated black), and omg, it's a work of art!

[M-R-P]

Nice to see an update mate.

Those 200 cell pipes are lovely

[Wobbly Dave]

how you doing the recirc?

[Dream3r]

Intercooler Outlet to 3" ETM PIPE, recirc boss on the 3" pipe, post ETM, sent back to the intake, post MAF.

Seemed like the best place to put it to me.

[M-R-P]

Intercooler Outlet to 3" ETM PIPE, recirc boss on the 3" pipe, post ETM, sent back to the intake, post MAF.

Seemed like the best place to put it to me.

As long as you can get it to bark and chirp, you're on to a winner

I'm not a chav..

Honest

[Dream3r]

It's oddly completely silent, more so than stock!

I've still got some playing/setting to-do with it. I can also stick on the trumpet and give the maccyD crew something to talk about, whilst over-fueling

Turbo sounds like a jet turbine though.

[Dream3r]

GWE's handy work

[M-R-P]

Looks busy in there John, you sure you know how it all goes back in?

I remember Graeme developing those pipes (and the language he used to describe the process lol). Tidy work that.

[Dream3r]

That was GWE's fitting of the pipe, his pic. I'm comfortable around there now, but that's it, lol.

I'm going to be mapping and adjusting my BOV now, much work ahead, possibly months until I'm happy.

[Dream3r]

Map v2 (5 bar Cavalli)

Silly maf readings, past stock limits, but still reading suggesting 400-420 bhp

Loads of work to-do still it's pretty raw the boost control, the turbo seems capable of 1.6 bar at just over 3k.

[stribo]

Will be watching with interest, hope I didn't get you in trouble earlier.