Hi
Got another question. If I raise the boost pressure to 10-14 psi on the 480, what plugs do I need? Are the standard plugs good enough, operating under increased pressure?
What do you experts suggest.
I thought I asked you & it was taken already.....yes mate a turbo box. Just found a flywheel today, from an F4R Clio. 60-2 pattern.
If you are upping the boost I would go 1 or 2 grades colder. An expert once recommended me an NGK BPR9ES. Or BPR8EIX iridiums ones if you are rich. If the plug fouls quickly then the grade is 'too cold'.
The ignition system has a safety cut out at around 1 bar or just above, so careful you don't bounce off that too much. It will feel like the engine has cut out. Raising just the boost won't get you much though, better to change timing/injection by getting hold of a modified ECU
//edit oh and I close up the gaps of the plugs a little when upping the boost.
Last edited by jamesy12345; Wednesday 21st October 2015 at 21:11.
K605ewa (Thursday 22nd October 2015)
Thanks Jamesy, good info
Doingitsideways (Thursday 22nd October 2015)
Upping the boost with an MBC. Looking at my Wastegate actuator, it has a red tube running to the pressure switch. Is this the line into which to put the MBC.
I am still wanting the proper ECU mod. This is just temporary.......for fun
I need some help in re-coding my original Volvo 480 radio. I have the code but can't for the life of me work out how to enter the numbers. I have used the preset numbers 1-4 but the code has numbers above 4. Also, when you have entered the code, how do you finalise the operation or does it do it automatically?
Last edited by K605ewa; Saturday 24th October 2015 at 14:58.
I can't recommend upping the boost without sorting out the fuelling to match - mine was overboosting & killed the engine. No idea about MBC's, sorry
K605ewa (Sunday 25th October 2015)
jamesy12345 (Saturday 24th October 2015),K605ewa (Sunday 25th October 2015)
Got Robou's mod in now. The turbo gauge doesn't show any more boost than original, although the power is obviously up???? I have the new dump valve to fit, which might make a difference. On hard acceleration at high revs, I can hear a short sharp hiss, not like a waste gate opening, so might be leakage around the pipes to the actuator (robou's suggestion). It certainly is not delivering full poke but is much better than standard. Pulls from 1000 rpm and his test of 45kph, smooth as silk.
Has anyone got a turbo gauge set to sell, otherwise I will use an Ebay pressure gauge to individually check the turbo gauge reading.
jamesy12345 (Tuesday 8th December 2015)
Last edited by jamesy12345; Tuesday 8th December 2015 at 19:02.
K605ewa (Thursday 10th December 2015)
Ta.... where does this thingy hide itself?. I was looking at the square unit in the air intake back from the box. The one you are showing seems to be round or is that an illusion!!! Gaud I need to learn fast..........
Sorted the MAF resistance to 530 ohms. Had new turbo fitted and they set the actuator to open early for bedding in ( I don't know why) and did full pressure leak checks. I need to know, on my model 92, which way to close the actuator to delay it as I am getting less than standard pressure, or do I have to open it???????. I have the Robou fitted, new Audi dump valve and less than impressed with lack of pressure. Hardly going to 12 o'clock. Thanks
Bit of info...
http://www.volvo-480-europe.org/foru...hp?f=11&t=9467
http://www.volvo-480-europe.org/foru...hp?f=11&t=9472
maybe best to ask the garage who moved it to put it back where it should be
K605ewa (Friday 12th February 2016)
Yup, I twigged the b...££££ about the turbo but the company who reconditioned my turbo set the wastegate to open early. I have every confidence that when I have corrected the mistake to "half a hole" or around 5mm not the 1-2 mm movement of the actuator rod they imposed on me, some more power will appear. I unlocked the actuator rod, loosening the 10mm nut, removed the circlip and pulled off the rod from wastegate spigot. I tried to rotate the turnbuckle but could not actually move it. Locking compound or crimping??? Looks like a small dimple in the turnbuckle body.
What I am very interested in is the condition of the regulating valve. If this indeed triggered a fault in my Robou, then it will have to go back and be mended.
Would anyone have a known, proven, regulating valve I can buy from them please. It would be pointless to have the ECU checked to find the regulating valve may blow it again. I will, of course check the resistance as Robou suggested.
The red pipe from the regulating valve goes to a new diaphragm working the actuator rod. The wastegate is new.
The white pipe goes from the turbo area to the regulating valve. Let me know if the set up is erroneous.
This is all proving quite disheartening.
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