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+--- Thread: What engine? what turbo? what spool? (/showthread.php?tid=6438)
What engine? what turbo? what spool? - whitey1986 - 04-13-2015
Interested to see what turbochargers people here have on which engines and at what RPM they start producing usable boost at.
Cheers!
RE: What engine? what turbo? what spool? - MFSuper90 - 04-13-2015
Hx30 on a 617 with a tweaked stock pump. It starts to boost around 1800-2000. Full boost shortly after. It would be a lot faster with a big pump
RE: What engine? what turbo? what spool? - whitey1986 - 04-13-2015
Thats decent spool time. The 617 is older? Is it the 8 valve 3.0?
RE: What engine? what turbo? what spool? - led-panzer - 04-13-2015
His is a 617, 10 valve. As is mine.
My old setup was an Holset HE341 on the stock EGR exhaust manifold, connected to the stock exhaust. Had a 6mm 90cc pump with no ALDA. Has a large Air to Air intercooler with somewhat long piping.
Started to spool (5lbs) about 2400rpm, full boost (22lbs) by 3000rpm.
Many many factors to consider that effect spool - fuel, exhaust manifold, manual or auto trans, intercooled or not, ect ect.
RE: What engine? what turbo? what spool? - whitey1986 - 04-13-2015
Sorry I'm still thinking 4 cylinders as opposed to 5 I guess! Thats still decent considering a he341 isn't a small turbo.
RE: What engine? what turbo? what spool? - MFSuper90 - 04-15-2015
Also, spool is hard to factor in, as it can change by air tempurature, engine load, fuel quality, etc etc.
But what we say is a rough estimate, you just got watch because some people will say it "spools" and it's building 1psi and others says it "spools" and it's building 30psi. It's a hard term to put a number to because there are no set standards for it
RE: What engine? what turbo? what spool? - whitey1986 - 04-15-2015
of course we all know 1 psi boost in a Vtech is enough to blow the head clean off
but yes I agree it is difficult to put an exact point on it as different cars react differently but most people here have the same or similar engine so would be the closest of comparisons. My last diesel, 206 2.0 hdi, spooled about 1800 rpm had approximately 1 bar by then and had a gt2052v but quite a long and convoluted intercooler path which didnt help
RE: What engine? what turbo? what spool? - Keino - 04-16-2015
Om617.952
7.5mm dieselmeken M pump
Borgwarner s200g
Boosts starts at 1600-1700 rpm
RE: What engine? what turbo? what spool? - whitey1986 - 04-16-2015
Very good!