Devil's Refugee

Ok, I've got a pretty "standard" set up amongst Scoobynetters
Straight through exhaust
ITG Panel filter
Remapped ECU

I quite fancy an uprated dumpvalve, but not sure which one to go for.
Forge seem to do a nice range, HKS-SDV looks like a good piece of kit, but a bit confussed with re-circs or atmospheres.
Don't mind the whoosh noise, but worried about idling issues.

Would also be upgrading further in the future (larger intercooler/ turbo maybe at some point) so would want something that's going to be around with the mods too.

Any suggestions lads/ ladettes ?

nom

I don't think any aftermarket BOV really would have too much problem with quite a lot of extra power. That stuff is mainly marketing guff.
As for idling issues - any good BOV, DTA or re-circ shouldn't cause idling issues.
And as for good, it depends what you want. Some people with various manufacturers' BOVs seem to think the main 'improvement' is the noise, and are very suspect about people who say there's any performance increase of any type. No, there can't be any bhp increase, but between-gear 'performance' CAN improve, and does. Use a good BOV & switch back to the standard one & you think there's something more serious wrong.
I like the HKS SSQV BOV, except for the vast amount of noise it produces and the stupid name. You can get round the stupid noise by removing the bit of plastic that makes it, but I don't think there's much can be done with that name

Big Goon

Forge, 1000's out there, well tried and tested

Have had 2 in 6 months, WRX and then STi7, a must imo

LG John

Have you had a TEC3 custom remap? How much bhp do you think you've got and what boost you running? The reason I ask is this is the route I was thinking of taking and therefore I'd appreciate a run in your car to help me decide. It would also be useful to have a pull-away comparision, i.e. how quickly do you waste me from sherrifhall roundabout (it's a 70mph road and would be done in the late evening for the safety pundits).

I'd buy you a pint for your troubles

Elmer Fudpucker

[Edited by Elmer Fudpucker - 8/17/2002 6:04:57 AM]

Dark Blue Mark

Got to be the APS one as it does supply some air back to the air box. Also has adjustable setting. Pricey, but worth it.

MB

Moles Dad

HKS SSQ....works for me

It cured my MASSIVE boost 'shudder' I got with the standard dv when I went to FMIC and higher boost.

john banks

Saxo Boy I have no problem with you bringing your car to me for a play with the different options. Ozzy did this and did not buy at this stage - no problems. I still think you should all upgrade your turbos!

Devil's Refugee

Saxo,

What's your e-mail addy mate ?
Mail me off-line and we can arrange summat

Would be happy to blow you away at any roundabout, hehehe !!!


Cheers guys for the advice.
Will be purchasing one soonish.

LG John

kmacleod@eastlothian.gov.uk

Beat an S4 last night so my ain't all that slow

T-uk

Devil,

if saxoboy is running a dawes you might get a shock.

this warm weather has knocked 2psi off my boost[tek3] and the car feels pretty flat just now,although off boost it still goes very well.when I had a dawes the boost hardly ever changed despite the weather,so always felt good but this worried me on hot days,for high boost leading the high intake temps possibly causing det,although the knocklink always stayed quiet on road use and track use at sensible boost.

I miss the dawes kick

I have asked john banks to see if he could work out a way of refitting the dawes back in the system while keeping the boost solenoid connected.I think if the dawes bleed hole was soldered up and the boost map adjusted to allow the solenoid to do the bleed,the dawes spring and ball valve tension might give less temp affected boost control.

Devil's Refugee

Bugger, completely forgot he's got one fitted.
Used to have one myself until I went down the Tek route, although interestingly, JB was running a Dawes/ Tek combo at Knockhill last week.

LG John

I noticed that too, he said 'the dawes give better boost control than the ECU' or something like that in case I've misquoted slightly!

T-uk

I am tempted to stick my dawes back on as I have knock and lambdalink fitted but wonder if it's worth it.I do not think 18psi of boost is too much for road use but on a warm track day with dawes and PPP ecu at 18psi,intakes started to climb so I backed off to 16.5psi and all was okay.in this warmer still weather,my tek3 car is at 15psi so the top mount should cope.

my main worry with dawes is not flogging the turbo to death at higher boost because then I get to replace it with a good one but the cr4ppy top mount not coping giving det and the ecu not dropping the boost because of the dawes.

nom

I think you might find the drop in boost quite convenient in the hotter weather! At the higher Dawes-inflicted boost, it could be detting like a mad thing & the ECU wouldn't be able to do anything about it. I'd have thought that it makes sense to turn the Dawes down in this weather - unless knocklink says different, that is

peccy

no mention of the Blitz DV yet, heard theyre the best you can buy, although you do pay for it, anyone recommend it?

snowcrash

forge (makes nice chatter at certain boost levels)

FASTER MIKE!!

if you want LOUD then it the Turbo xs RFL (realy f**kin loud) just fitted it tonight, and scared some kids when i drove past .
its cheaper than the blitz too. i paid £220 delivered with a fitting kit. baught it from AWD in Perth (scotland)
its a well made peace of kit
regards mike

forgot to mention it 120db at 13psi is that loud enough for you

EvilBevel

I couldn't agree more (and no, I'm not stalking ]. A drive to the nearest town today saw 75°C under bonnet temps most of the time, only dropping to 50°C after a "free run".

I could feel the ECU retarding

This weather (at least over here ?) is detonation hell if you are not careful.

PS: EGT's were also way higher than normal.

PS2: one thing though... if you can feel a better turbo spool up with dumpvalve x, *surely* that must mean that dumpvalve doesn't do it's primal job properly (protecting the turbo bearings that is) ?

Elmer Fudpucker

sorry to go off topic,but evil....where are you in belgium?


edited to say, be on the look out for a green/gold p reg scoob causing mayhem around the "god-awful"streets of antwerpen:}

[Edited by Elmer Fudpucker - 8/19/2002 11:27:16 PM]

HKSubaru

there's a offer for 107 for a baileys DV at scoobyworld. Is there any chance of getting it cheaper with a group buy?

LG John

T-Uk, you called it mate Theo is now limping back to John Banks to have his car looked at

Theo and I are now hounding Dr Banks for his thoughts on a TEC3 - dawes combo

john banks

Well if I end up making them both faster then who will win then

The lower boost/hot weather is a tricky one. I would rather do it by design than by accident. Hence I am presently back on the Dawes. The ECU if you use a 3 port solenoid can be much more consistent with the boost, but the user cannot adjust it - say lower for the track or hot weather deliberately. The ECU seems to miss transient det anyway, so relies on map being correct. It can still add fuel or retard timing if it see full blown det. Agree they are all a compromise.

I am getting a Forge recirc DV with the FMIC. Not for noise, for poise between gearchanges.

Theo have you found the new MAF sensors are more robust with induction kits?

[Edited by john banks - 8/20/2002 11:20:32 AM]

EvilBevel

John, I had the K&N/STi trumpet combo on for about 4 weeks with no ill effects. Being a wuss I then put the original OEM filterbox back on for a trackday at Elvington, and noticed a small difference in fuelling anyway (richer with OEM below 4000 RPM, but no real flat spots as far as I could see, probably because of the trumpet)

My FMIC goes on next Monday, so will refit K&N (MacsPower edition), and then a remap of the Unichip to accomodate both. A few weeks after Mark EMS will remove the Unichip and directly map the JECS, so we have more control low down (off boost) and possibly better boost control (although I don't really feel boost as being a problem).

One thing ... the Unichip has something called "accell. enrichment". Am I correct in thinking this is a map to enrich mixtures whilst "going through the revs" ? Could this help with transient det ? Or is it useless on turbocharged cars ?

I think Mark is also looking into other MAF sensors (that don't melt when you look at them ) to see if he can make them work with the JECS.

john banks

JECS has acceleration enrichment which should be programmable, but Steve has not defined the maps for it yet. Busy working on 01/02.

Devil's Refugee

Great, humiliated in front of everyone now, cheers Saxo

JB: Saxo mentioned that you mapped Chris' car and he had little over mine in terms of mods, yet still felt stronger (although, his perception could've been warped since he was driving the slower Citroen back then)

New Dawes, new plugs, new ITG on order.
Should be back on track soon.

Sorry John, experience of new MAFs limited so cannot comment there.

[Edited by Devil's Refugee - 8/20/2002 12:04:47 PM]

john banks

Theo I meant the Evil (Bevel) Theo who eats MAFs and gearboxes Hope I don't follow him

Give me some more time to get yours up to speed.

[Edited by john banks - 8/20/2002 12:13:35 PM]

LG John

I could have created a whole new post in 'general' you know