97 replies to this topic

[tibby]

https://www.google.b...eNqDJGw64U-UEug Some more ducting :-)

[Exmantaa]

For proper ducting of rads etc you should look into planes stuff, as they tend to spend a lot of research doing this properly.

Just a big opening in front to catch all te air is not always the best solution...

(Something to do with slowing the air so the pressure rises in front of the rad and then accelerating it out again.)

[TFD]

Had enough confidence to put all back together. Went for a 10km run and found a leak on the oil returnline.Gonna fix this next week.

 

 

 

In the meantime fixed up the interiour a bit:

 

[Nev]

Goodness gracious me, that is the cleanest VX that I have ever seen! (That is not a compliment)!

[TFD]

Well... with just 2000 miles in 2,5 years it should look like brandspankin' new shouldn't it 

 

I'll take it as a compliment lol

[Nev]

How come you hardly drive it?

 

[TFD]

It's been in the garage for 1,5 years for the turbo conversion. Things took some more time when my girlfriend was diagnosed with MS (and still recovering from her latest attack..). So the last year was a bit busy running my own business, taking care of two 3 and 5 y kids, run a household without the misses, taking care for some reconstructions on the house and a... oh yeah finding time being a DIY 2.2 Turbo guineapig.

 

All is a bit better now with my girlfriend and things are getting back into their normal shape timewise. So finally got the time to finish the VX and start driving her! Such a nice car to drive.

[Nev]

Wow, that's a good answer, I will shut up now!

 

[Rosssco]

How does it drive / initial impression? Decent response, torque delivery etc.?

[TFD]

Decent is an understatement. Its almost instant boost from 1500rpm. Partial throttle is like normal drivin but on the top of your toes.. press it a bit futher and it takes off like a high powered N/A car (torque is lurking hard) and around 2500rpm an even bigger push comes in. No need to rev high or push the throttle deep to find power. Its there and you feel the VX saying: I want to take off!!! Drivin around like a stretched rubber band just waitung to shoot. Sounds a bit childish maybe but dont know how to put in other words. Really... makes you giggle.

[CHILL Gone DUTCH]

power run ?

[tibby]

Wow, that's a good answer, I will shut up now!

Yep, he's something like this......

[TFD]

@Chill: First fix the oilleak, then we start doing the learning and logs.

 

lol Tibby

[Nev]

Decent is an understatement. Its almost instant boost from 1500rpm. Partial throttle is like normal drivin but on the top of your toes.. press it a bit futher and it takes off like a high powered N/A car (torque is lurking hard) and around 2500rpm an even bigger push comes in. No need to rev high or push the throttle deep to find power. Its there and you feel the VX saying: I want to take off!!! Drivin around like a stretched rubber band just waitung to shoot. Sounds a bit childish maybe but dont know how to put in other words. Really... makes you giggle.

 

What turbo + ECU have you installed please?

[smiley]

Have you tried page 1 Nev?

 

[Nev]

Have you tried page 1 Nev?

 

 

I have now, thanks, I didn't go back enough pages to read the spec originally.

[TFD]

Still got an oilleak... 

Was able to perform the basefuel learn session and did a small powerrun. Stoped at 3k rpm since I have no clue how fuel and timing is setup. 

No knock was detected and fuel was 11.5:1 so when the oilleak is fixed I will perform a full run.

 

Tease:

 

 

Powercurve is simular as my T25 setup on the sr20det engine (2.0l 8.5:1 c/r). Only difference is that the sr ran 1.1 bar of boost.... the z22se runs 0.7 bar. We'll see what happens.

Edited by TFD, 13 March 2016 - 10:02 AM.

[TFD]

Did two powerruns today. 231hp / 338Nm.

No time to tune the car (still oilleak.... what a #$%^&)

 

I have a boostdrop which indicates a boostleak. I lose 0.25bar of boost and therefore horsepower. Allready found a leak tonight in the boostcontroller. Tomorrow is another day.

 

 

I've got a question: 

 

When looking at the timing you see the timing is set at 12.ish degree with about 7 degree knock. Timingtable says 19.7 degree.

Am I right to think the timing in the timingtable must be advanced to 13ish degree? Sorry for the question but I allway f-up with retard/advance/english stuff.

 

[CHILL Gone DUTCH]

The knock automatically brings the ignition down I would say set you ignition to around 17 across the WOT range but you need to sort your boost leak if you have one first as this could be causing issues with fuel pressure which will lead to the fueling running out also Dependant on if you had a boost leak during the fuel learn session You could check this by looking at the fuel trims on the general page or do a log session

[TFD]

I've been thinking about it and my experience with previous turbo makes me think I have a boostspike rather than a boostdrop.

 

Found a small leak on my boostcontroller and fixed this now. Then shorten the vacuumlines as short to the wastegate as possible, change the timingmap and go for a testdrive.

 

If the boostspike still occures, an electronic boost controller will be installed. You can setup these ebc's as you want in speed, gain etc.

Had one around but didn't want to fidle with extra 12V stuff 'n wires in my car so went for the manual BC. 

 

With an extra 0.25 bar of boost and correct mapping, an extra 30-40hp should possible.

 

@Chill: We run a TMAP sensor so fuel is injected according to the temp and pressure the sensor sees in the intake manifold. Hence a boostleak prior to the intake manifold will not mess up the afr.

When the boostleak is solved, more air will enter the intake and a new AFR calculation is needed.

 

Thats the beauty of a TMAP sensor vs. MAF: If one of the IC pipes blow orsometing (major boostleak) I can still drive home where a MAF car will stall because of the messed up air values meassured in the maf vs. entered in the intake manifold.

 

Grtz,

 

Edited by TFD, 18 March 2016 - 10:24 AM.