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+-- Forum: Engines (https://www.306oc.co.uk/forum/forumdisplay.php?fid=16)
+--- Forum: DW10 HDi section (https://www.306oc.co.uk/forum/forumdisplay.php?fid=10)
+--- Thread: Quick Stage 2 Question (/showthread.php?tid=21195)
Quick Stage 2 Question - mattgreene - 08-02-2014
Im running stage 1 atm, would like stage 2, is it essential to fit intercooler to my hdi or can i get away with it, if i drive it nicely? does the intercooler actually cool the charge temperature down that much?
RE: Quick Stage 2 Question - Poodle - 08-02-2014
Yes you need an intercooler, else you'll cook the turbo and possibly melt things. I seem to remember ethanhp1991 tried this, see his project thread for the outcome lol.
RE: Quick Stage 2 Question - mattgreene - 08-02-2014
Ah ok then ill have to fit one! just thought id ask thanks poodle
RE: Quick Stage 2 Question - pro_steve - 09-02-2014
Yes the intercooler makes a MASSIVE difference, especially when the boost is turned up. There's a reason why we stop at stage 1 power levels without an intercooler, you hit a brick wall that just wont go any further without smoke/high EGTs.
For my dissertation on HDI engine tuning I found that on a stage 1 with standard boost you could get intake temps up to over 100C in fitfth gear. With water methanold injection I think it was something like 60C, and with the intercooler (off the top of my head) I think it was something like 40, but that might be off a bit. With hot air it's just not dense enough to deliver the required charge of air.
Quick Stage 2 Question - mattgreene - 09-02-2014
Bloody hell!! Does make a massive diffrence, well I've put a post in the wanted section for intercooler and the various bits need to fit one so if anyone's got bits in there shed I need to fit one, I need bits lol