Courtenay vs EDS

[Tricky]

Why is it that my Stage One conversion from Courtenay only gives me 10% yet the EDS Phase One gives 260bhp? Is it just the software? Can I just put an EDS chip in my ECU to get the extra power?

My Courtenay conversion has:

Two headgaskets for lower compression
Adjusted actuator (0.9bar/12psi peak)
Remapped ECU

 

[ASH]

Hi !

Could you please try to explain us why 2 headgaskets ??

Was the headsurface machined down very much , or why ?

Makes normally at a standart engine NO sense !

At first i would like to remove the gasket packedge to a Z20LET headgasket !

Then try our software , when you have an upgraded intercooler , use our phase-2 kit , its working fine !

regards ASH

 

[yunis]

Ahs using 2 gaskets is a bodge job, they use it to lower the Comp Ratio, but is a silly and unreliable way of doing it. Instead fit either a thicker kevlar gasket or low comp pistons.

Ash, how thick is the z20let gasket? 1.1mm or 1.6mm?

 

[Russ]

Yunis, that's typical of the ill-informed statements you have become famous for.
Why don't you ask Jon Shield of Courtenay how many cars he has fitted like this, and how many failures he has had?

How do I just know you haven't tried it yourself either??!!??

 

[yunis]

of course its a bodge russ, ok it may work, but why bother fitting two gaskets? u can buy an uprate dkevlar one for about £65. I have spoken to many engine tuners and most have told me that running 2 gaskets creates a week spot between the sandwich. would you feel comfortable running 2 gaskets russ? come on mate be honest here...would you?

why dont you ask some of the main engine tuners in theuk tuners and some of the well known jap tuners if they would run 2 sandwich head gaskets? im sure they will give u some ill informed comments too.

ill informed comments?what ever russ......

BTW im not accusing john shields of nothing, he has his view and other tuners have theirs.

 

[Tricky]

I think the two gaskets is just to lower the compression without using forged pistons. The head has only been skimmed once or twice, two head gaskets has been done by choice and not by necessity! I figure lower compression means the slightly increased boost is safer and it seems to suit it well, it drives very nicely. The conversion as it stands though has been 100% reliable so far! I do agree it creates a weak point between the two gaskets, especially if I tune it for more boost.

So ASH you think that the EDS phase 1 chip would cause my head gasket(s) to blow? Is it much higher pressure than 0.9 bar?

Also what thickness is the Z20LET gasket and the C20LET gasket? You think I don't need two gaskets? I want Phase 3.5 for my FWD MK1 GTE/Kadett-D eventually, do I have to change the gasket for this or is it standard gasket?

 

[ASH]

Hi !

Mostely the C20LET Tuners use too low fuel pressures for theire application , the engine starts knocking , so they try to reduce compression very easy with two standart gaskets !

Our phase-3.5 will blow away shortly your gasket packadge , we had this many times with the italien 2mm spesso gasket , it looks inside like pressed toilet paper , every time blown away beweet the cylinders or to the water flow chanel near Cyl. 4

For our phase-3.5 is the best version to use the Z20LET Gasket , its the same thicknes then the original C20LEt version , but 1000% more strength as a standart version , because its a 4 layer steel gasket !

regards ASH

 

[yunis]

ash yes, u are quite right there about 2 gaskets but im running a 1.6mm spesso gasket, reason so i could lower the cr as opposed to machining the pistons. So the z20let gasket is 1.1mm? i thought i read somewhere it was 1.6?

is there no other steel gasket around that is slightly thicker?

saying that rds is running a 2mm spesso gasket and he has had no problem thus far....what qorque method did u use ash when the gasket blew? 25nm, and 3 sets of 90 degrees?

 

[rds]

As Yunis says im using the 1.9mm head gasket (kevlar) and touch wood hasnt gone pop yet and im running phase 3.5 boost and high overboost (1.8bar). I did the torque method as said plus the sequence after the engine has been warmed up :lol:

SBD do a 1.9mm steel head gasket IIRC :wink:

 

[tabs]

im a little confused can i run phase 3 on a c20let on the origional head gasket or do i need to cchange the headgasket first i was under the impresion the origional head gasket was fine for 1.5 bar

 

[Richie]

Its all a matter of how well you want to sleep at night

A standard headgasket MAY do and, theoretically, it should be fine but wouldnt you reast easy that little bit more having the uprated one ?? :roll:

 

[CalTe]

Hi Tabs - Its quite safe, as long as you have the "strong" head. I have done that together with the V-max chip for 3 years now and its still working.

 

[tabs]

mate what do you mean by a strong head

 

[Richie]

Coscast probably....

 

[Tricky]

So will the phase one software work properly with my existing setup with the two headgaskets? I need to know before I order it. Does the compression difference between 1.1mm headgasket and 2.2mm (which the two together would give) mean that the chip won't work properly, or does it not matter?

 

[ASH]

Hi Tricky!

In your case you should order the phase-2 software kit without intercooler , its the same price ( normally ) , because your engine needs advanced ignition angels to get power !

regards ASH

 

[Tricky]

Hi ASH, thanks for replying!

Really? Please explain this advanced ignition angles to me, I don't understand! I read the following on the Regal website http://www.regal-shop.co.uk/asps/ShowDetails.asp?id=132 but all it talks about is power gains from the intercooler.

I only have a standard Cavalier/Calibra intercooler, you can see it next to the inner headlight on the right:

Here's another picture. It's only small!

What sort of power will I get from the phase 2 chip, because I don't think I'm going to get the full 280bhp, am I? Will the intake temperature not be too high and cause pinking?

 

[ASH]

Hi !

Your are half right , the power is oonly coming from the right combination of fuel , boost , boost temp , and ignition timing !

When you lower the compression , you can direkt increase the ignition timing !

When its cold outside you will have NO pinking !

In the summer you must try , nothing gets broken , the ignition pinking control system is working fine !

regards ASH