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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Thread: Holset turbo on stock manifold... Reply to Thread
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Topic Review (Newest First)
02-26-2011 02:42 PM
comtrang Could you post those same logs in LogWorks, maybe?
02-26-2011 01:38 PM
onyx100 with stock hx40 actuator and diy canusb I have done few logs
1.44 bar boost max.

Do You guys know whats going in my car, what I should change ?
more boost ? Car is pulling welli Think fuel cuts above 4500 - 5000 with WOT
02-17-2011 06:05 AM
onyx100
Quote:
Originally Posted by JZW View Post
At least get a bit and smooth out the flange to match the manifold, its not a very good match...
Yeah I done it later after snap shot
Today I am going to fit:

-ecu with new maps - 1.4 boost max rev limit 7000 rpm
can I blow more? , have 3 Bar Map
-dekas 630cc

How do You think guys what range of power I can expect with:

-stock B204 motor
-stock hx40w ( using old tb25 actuator with helper spring) feeding only wastegated scroll - I have milled stock wg hole to about 30 mm

-dekas 630, stock FPR 3 bar ( thinking about vw 4 bar FPR - 15% fuel gain?)
-2x walbro 255 intank
-viggen clutch
-big china ic 600/300/70mm

cheers
02-13-2011 04:13 PM
JZW At least get a bit and smooth out the flange to match the manifold, its not a very good match...
02-13-2011 03:17 PM
onyx100 I finally done it is a homemade not top brands part... more for fun than for real race but at the end hx40w is nicely paired with stock manifold... still waiting for proper map - decided to blow 1.4 bar with dekas 630....walbro255 forge ic , cat delete, viggen clutch blach blach blach but I am feeding one scroll only - exhaust way is now like in 9000

more pic
Flickr: dannyholset's Photostream

please dont laugh from my silly DP - off cuts from 76mm 1.5 mild steel pipe cost me only about 15 pounds and I spent about 2 hours for cutting and welding
08-16-2009 08:01 PM
a12 I live in Manchester now, but the car is being kept in Brooklyn, CT (Northeast corner of the state).
08-15-2009 12:50 PM
strat101 I want to see this car...where in connecticut do you live. I live up by bradley airport.
08-15-2009 11:08 AM
a12 It's running good! Still have to go through emissions. I've been taking it out on the road anyways to break it in and make sure all the drive cycles are completed and I don't get a CEL-it came on once for a small misfire at idle, but hasn't been on since resetting it. Just need to drive it a little more then I can go through emissions. The enem cams do seem to make it idle a little rougher and I think that's what caused the CEL.
It runs good though-boost builds rapidly at about 4000 rpm.
At about 3200 rpm it has about 7 psi, by 4000 it has about 15 psi and then ramps up quickly from there to redline.
Had a run in with a new jetta GLI the other day-he thought he could hang but I changed his mind really quick.
I don't have a video camera but will see if I can borrow one. I will also post up some dyno results when I get a chance.
08-14-2009 06:44 AM
kingofkrunk any new updates on this??
06-23-2009 04:57 AM
a12 Alright I'll see what i can do about a video.
Car is all together, had to dial in the Enem cams to get it to idle and run right. Everything is hooked up, have to put a helper spring on the wastegate, it's blowing open. I can only make like 5 psi boost.
Engine seems very smooth considering the balance chain is removed.
06-22-2009 09:33 PM
comtrang I'm sorry, but your sig updates have been keeping me on edge.

Bump for video of running car
05-05-2009 07:08 AM
JZW Good Luck!

John
05-05-2009 06:05 AM
a12
Quote:
Originally Posted by comtrang View Post
Final exam week for me too..the end of it marks the start of something for both of us. The start of your key and the start of my own build.

Good luck on yours.
Thanks man. With any luck it will be started Friday or Saturday.
05-04-2009 09:08 PM
comtrang Final exam week for me too..the end of it marks the start of something for both of us. The start of your key and the start of my own build.

Good luck on yours.
05-04-2009 03:08 PM
a12 Update:
Car on it's wheels finally.
Still have to fill fluids, put in battery, attach i/c to tb pipe, and a few other small things.
Will not get a chance to work on it again until Friday (final exam week).
05-02-2009 09:41 AM
comtrang
Quote:
Originally Posted by a12 View Post
I actually am trying one of the ebay cooling fans out. It's 14" and is S-blade, slim design, only like 3" deep. I am goin to make brackets for it but right now it's mounted with those zip tie things they supply with it. It actually sits against the bottom of the car frame also which gives it some added support. It's the biggest you can fit for a single fan. It's either that or like dual 10" of 12".
I hope it works o.k., it;s kind of a gamble on the ebay one, but we will see.
Didn;t want to spend like $200.
I know what you mean - as important as a cooling fan is, I just can't spend 200 on one. I wonder if it'd be better to have two 10" fans just to get a wider area, but let me know how that one works on its own. I did see a bunch on ebay.

Quote:
Originally Posted by JZW View Post
I am trying one of the 14" slim fans from siliconeintakes.com and its working pretty good, its a litle loud, it pushes 1800cfm for comparison. I had been using a subaru legacy turbo fan from a 91 t-legacy and that worked well too. 25 bucks at the local subaru shop.

The siliconeintake one is working fine, but its not enough when the ac is on in traffic, my coolant temps climb on up and keep going, I have to turn off the ac for the coolant temps to recover. That was at 75-80F, the true test will come when its 95+

The shroud is the big difference, if you took the time to fab up an aluminum shroud for the thin fan, I think it would be a huge help.

John
I never use a/c in my car, even in 90 degree 100% humidity (stupid) and usually I don't hit traffic that often. I did almost order a silicone intakes one but was worried about quality because of how extremely cheap those are. I'll either look into one the legacy fans or wait for your verdict on this one..

Thanks a lot you guys, now lets see a startup video for the HY35.
05-02-2009 08:02 AM
JZW I am trying one of the 14" slim fans from siliconeintakes.com and its working pretty good, its a litle loud, it pushes 1800cfm for comparison. I had been using a subaru legacy turbo fan from a 91 t-legacy and that worked well too. 25 bucks at the local subaru shop.

The siliconeintake one is working fine, but its not enough when the ac is on in traffic, my coolant temps climb on up and keep going, I have to turn off the ac for the coolant temps to recover. That was at 75-80F, the true test will come when its 95+

The shroud is the big difference, if you took the time to fab up an aluminum shroud for the thin fan, I think it would be a huge help.

John
05-02-2009 06:56 AM
a12
Quote:
Originally Posted by comtrang View Post
Which cooling fan did you go with? Getting ready to order a slim one but have been too lazy to go take any measurements..easier to ask you since you've already done it

Oh and great job, I hope you cancelled whatever other plans you had for Saturday.
I actually am trying one of the ebay cooling fans out. It's 14" and is S-blade, slim design, only like 3" deep. I am goin to make brackets for it but right now it's mounted with those zip tie things they supply with it. It actually sits against the bottom of the car frame also which gives it some added support. It's the biggest you can fit for a single fan. It's either that or like dual 10" of 12".
I hope it works o.k., it;s kind of a gamble on the ebay one, but we will see.
Didn;t want to spend like $200.
05-02-2009 01:07 AM
comtrang Which cooling fan did you go with? Getting ready to order a slim one but have been too lazy to go take any measurements..easier to ask you since you've already done it

Oh and great job, I hope you cancelled whatever other plans you had for Saturday.
05-01-2009 03:13 PM
a12 So turbo to intercooler pipe all fabbed up and mounted, lower radiator hose installed, exhaust and subframe are on.
Tomorrow LarryM is gonna flash my ecu for me.
Not much left:
Battery
Fluids
Wire oil pressure gauge
install intercooler to Throttle body piping.
Not sure what's left after that!
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