Re-fitting LET head

[TOBYC]

dunno, can anyone clarify his??

[muppetspor]

well mine was running the 1.5bar overboost of phase 3 kit like

[Topbuzz]

> any one know the minimum height please?

yep, for C20XE or C20LET head (KS or COSCAST) according to the Calibra workshop manul is

overall height of cylinder head:
sealing surface to sealing surface = 135.58mm to 135.68mm

Gasket thickness, installed = 1.15mm to 1.3mm

[JohnA]

Originally posted by redxiii
I thought the only gain from an XE inlet cam was for high boost engines, something to do with the cam overlapping the exhaust one ?

I think I'm the one who first started the "XE cam mod" talk back in the old ClubCalibra forum - so I'll explain (briefly)

The XE cams are 'wilder' and therefore inappropriate for a stock LET. If you have a high-boost LET that has not be decompressed, then an XE inlet cam will lower the compression a bit, increasing reliability in that respect. It will also allow more mixture at high revs with its longer duration and increased lift.
This will be at the expense of some pull down low (no free lunches today)

If you run stock boost, the stock cams are best.


You might find these links useful, I don't know if they'd work for you though.
http://www.clubcalibra.com/section/i...?TOPIC_ID=1959

http://www.clubcalibra.com/section/i...?TOPIC_ID=6636