Reply With QuoteWho supplied the VNT?
Was the Alive Map written pre-VNT?
How did you plumb the hose that actuates the VNT? to where?
Fossicker
SupporterRecently fitted a vnt to my disco td5 manual. Have silicon hoses, boost box alive maf, alive intercooler, alive map, foam air filter and modified air box, egr removed , centre muffler replaced
Doesnt go any better with vnt as it did with standard turbo, blows more black smoke and has less power on take off. Initially after i fitted the vnt i had white smoke very bad, put it down to oil in the intercooler etc. this cleared itself, now scratching my head why no better performance.
Any ideas??
1961 series 2 swb
1978 series 3 ex army gs
2001 series 2 discovery td5
2015 tdv6 3.0 d4
1990 perentie gs cargo with winch.
Who supplied the VNT?
Was the Alive Map written pre-VNT?
How did you plumb the hose that actuates the VNT? to where?
Have you stuck a boost gauge on the engine? What boost are you getting?
Fossicker
SupporterYes the map was pre vnt. Went well. Ive got the vacuum hose on the wastegate actuator as it was, how should it be? BAS supplied the unit. Is the reading from nanocom for turbo pressure ok.
1961 series 2 swb
1978 series 3 ex army gs
2001 series 2 discovery td5
2015 tdv6 3.0 d4
1990 perentie gs cargo with winch.
Don't attach to modulator - goes direct to nipple on pipe leading to intercooler.
Then just bend old hose back onto modulator to seal it up. (Leave plugged in)
Fossicker
SupporterThanks , i will try that i will also get a reading off nanocom.
1961 series 2 swb
1978 series 3 ex army gs
2001 series 2 discovery td5
2015 tdv6 3.0 d4
1990 perentie gs cargo with winch.
YarnMaster
SupporterWhat reading will you get off Nanocom? The Nanocom cannot give you your boost pressure any more as the turbo boost box is tricking the signal. You will need a proper mechanical boost gauge now.Originally Posted by optimax90
YarnMaster
SupporterThis is likely to be your issue. The electronic modulator should not be used. The VNT wastegate will sort itself out. By pass the modulator and directly connect the vacum line to the VNT.
Swaggie
Yes, you MUST remove the Wastegate controller/ hoses and attach directly from pressure side to the Nozzle actuator.
This is most likely NOT a problem with the VNT or mapping.
JC
Last edited by justinc; 22nd December 2012 at 01:16 PM. Reason: Added proper meaning...Bad grammar :(
Fossicker
SupporterSwaped actuator hose to metal pipe before intercooler, seems a bit better, still sluggish and black smoke down low. Highest reading from nanocom .97 turbo pressure ?
1961 series 2 swb
1978 series 3 ex army gs
2001 series 2 discovery td5
2015 tdv6 3.0 d4
1990 perentie gs cargo with winch.
Posting Permissions
| Search AULRO.com ONLY! |
Search All the Web! |
|---|
|
|
|
Bookmarks