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dual port wastegate

appletonn

appletonn

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Promax Motorsport sell the MBC - it is a Lindsay Racing one, from memory and that is what is in mine. I think the boost enhancer would need to be removed as the DPW and MBC combo effectively make it redundant. Might want to speak to Andy at Promax just to confirm that though![;)]
 
Ive just bought one and now realise that i will need an mbc has anyone got one for sale or can recomend onei should buy and also can the boost enhancer be used with it or will this need to be removed ??
 
I have a second hand one for sale - Tom "homesea" was interested in it though not sure if he still is if not then its still available !
 
You'll need a boost gauge to set the boost to stock boost pressure. Any more than that and you'll be under-fuelling. Also you might experience boost protection cut-in occationally - mainly on cold crisp mornings. I did. Apparently because to boost builds so much quicker with a DPW it tricks the ECU into thinking you're about to overboost.
 
Sorry Jon, I thought you had sold it because I didnt hear anything back. Anyway I have bought one now. Just waiting for my wastegate to turn up then I hope I can hang onto more then 1.4 bar in 3rd and 4th. Jon what boost level was the car running with the promax Level 2 kit to get 290BHP?
 
ORIGINAL: homesea Sorry Jon, I thought you had sold it because I didnt hear anything back. Anyway I have bought one now. Just waiting for my wastegate to turn up then I hope I can hang onto more then 1.4 bar in 3rd and 4th. Jon what boost level was the car running with the promax Level 2 kit to get 290BHP?
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Where did you order your wastegate from ?, still considering where to buy myself.
 
ORIGINAL: Suffolk944 I have a second hand one for sale - Tom "homesea" was interested in it though not sure if he still is if not then its still available !
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How much do you want for it ??
 
ORIGINAL: homesea I hope I can hang onto more then 1.4 bar in 3rd and 4th.
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MORE than 1.4bar [:eek:] That's over 20psi - make sure your fueling is spot on and you should be around 320 on the standard AFM
 
I assume you mean 1.4 bar absolute! If not even with an MBC you'd probably struggle to hold that much pressure as an MBC also bleeds pressure at high RPM. You'll need an EBC.
 
Had to check back on the parts for sale thread - am looking for £35 for the MBC (o.n.o. !) Tom - yikes 1.4 bar ? As Scott says am assuming thats absolute as shown by the dash gauge ? The only time I dyno'd DHX with the Level 2 kit on was on the rollers of truth at Silverstone where she made 274BHP (0.7BHP less than Scott which I am still bitter and twisted about !) The result are on Ricks site and I think the print outs are in the folder of bumph that went with the car. She was set up at 1.1 bar for that with the MBC, now I have an EBC my new car sits at 1.2 bar.
 
ORIGINAL: Suffolk944 now I have an EBC my new car sits at 1.2 bar.
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......and it's with the larger K26/8 turbo and you have a 3" exhaust which should increase the output flow as well as reduce any lag. It would be interesting to see your charts now.
 
Lol, yer 1.4 absolute. It gets to about 1.4 on the dial then blows it all off and the over boost kicks in and the car cuts out. I think Jon had the 3" exhaust on DHX before, I could be wrong. I am not planning on going mad, but would like to get the car back to how it was when Jon had it. I do have a new engine and turbo on the cards, but no idea when I get round to putting it all togather. I still have a 968 clubsport itch to scatch and also my other projects a Golf GTI and Audi S2. Wastegate is from [link=http://www.pauertuning.com/]www.pauertuning.com[/link].
 
I had the ESS/Janspeed exhaust on DHX which is a 2.5" system must have made a few hp difference. I know Scott got a significent power increase by simply fitting a dual port wastegate and not tinkering with anything else, 20 odd Bhp I think ? I think we have both been very happy with the L2 kit. Am wondering whether to go for the L3 kit at present.
 
ORIGINAL: Diver944
ORIGINAL: Suffolk944 now I have an EBC my new car sits at 1.2 bar.
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......and it's with the larger K26/8 turbo and you have a 3" exhaust which should increase the output flow as well as reduce any lag. It would be interesting to see your charts now.
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I bet she'll make 274.6bhp now[;)] I reckon the difference that day was the grade of oil I am using! That's done it. Mine's going in for the EBC install. I should stop kidding myself that i'm ever going to get round to doing it myself. Will be ineresting if I can hold 1.05bar all the way with my K26/6. If so I reckon i'd be good for 290+bhp. Guess i'll need larger injectors to deal with that extra air at the top end of the rev range.
 
ORIGINAL: sawood12 Will be interesting if I can hold 1.05bar all the way with my K26/6.
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My 26/6 nearly held 15psi with an EBC, it just started tailing off towards the redline. The day after I fitted it was when my airbox decided to disintegrate so I never had it dyno'd [&o]
 
Best check the integrity of my airbox then! Was about to take the plunge with the Vitesse MAF kit & Piggy Back this month, but have had a costly few weeks with what started out as minor decorating turning into pretty much a whole house interior overhaul, so that might have to go on the back burner for a while.
 
I certainly noticed the boost being held right up the rev range with the EBC have been very pleased with mine, well worth getting it fitted when you get the chance.
 
Scott, I have also been looking at the Vitesse MAF kit especially since my AFM dead. I got a 2nd had AFM at a good price in the end. Anyone else on here run the Vitesse MAF? Also why would a MBC tail off at high boost when a EBC will hold on?
 
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