1497 replies to this topic

[Exmantaa]

Yep.

The normal EVAP pipe on TB connects also to the vacuum side, so the top of the charger should give a similar effect.
pic:



How's the ecu/camshaft doing? Any updates on what was wrong?

Edited by Exmantaa, 06 June 2011 - 04:03 PM.

[The Batman]

Why don't you plug that into the tb?

[Exmantaa]

There is very little room between TB pipe and bulkhead, so shortened and closed that off and used this top connection that I had to blank anyway. Same result.

[NickB787]

update Well my cams went to Piper to get profiled, as it has been a bit difficult to get the information from Piper as to the exact profile of the cams, I asked FLD if he would mind sending his blower cams down as well this he did , Piper could then check his along side mine. I also sent all the information on the possible cams that Karo ( Allecotec) could have supplied on the assumption he might have sent the wrong ones accidentally. When Piper called me all they said was that the inlets were stage 1 NA and the exhausts were stage 2 NA. ( I assume they didn't look at the Blower profile info I sent) At the time I must admit I was VERY tired after to many early morning flights and so I was pretty depressed with the whole thing thinking they are the wrong cams. Next day however I checked ALL the data sheets and the blower cams do have the same profile as the NA stage 1 inlet and the exhaust are the same as the NA stage 2. also there were numbers on the cams 113251/113252 The comp part number for the blower cams was 113250. Since I still don't have ALL the extra information that Piper have gained, I can but assume the cams ARE indeed Blower ones, backed up by FLD's ones being the same. so were now, well the cams are on there way back to Courtenays. I would say the 2 possible suspects are now cam timing and the crank trigger firing position. The car originally ran like this when we first put the cams in so they to me must have suspect timing (fixed lug position) rather than the ecu change. I have asked Courtenays to check this, they should be able to dial them in now that I gave them the Saab cam gears which are adjustable Can anyone explain to me how this is achieved I would like to understand. wonder if the glowing exhaust is a sign of too much overlap. Inlet cam timed too late or exhaust cam timed to early.....or both!

Edited by NickB777, 10 June 2011 - 09:45 AM.

[FLD]

The cam timing figures are usually supplied as max lift at XX dgerees by the manufacturer. This is a figure based on crank rotation. You need to determine an accurate TDC which I do with a bar and DTI onto the piston crown through the spark plug hole. Then you fix a timing disc to the crank with a pointer at 0 degrees. You then rotate the crank around the prescriped figure with the DTI onto the valve cap. You should hit maximum valve lift at the timing figure given by the cam manufacturer. You might find its a touch off. Lift on overlap is used on NA engines as a scavenging mechanism. You get some momentum of exhaust gas down the manifold which is used to draw fresh mixture in (I think!!). You get a touch of mixture down the exhaust but not too mcuh. With forced induction its is often best to minimise this as you just force all the mixture down the exhaust rather than overfilling the cylinder. This burns in the exhaust giving the glowing exhaust. You may also notice its down on power. I hope this makes sense and isn't complete pap. I'm not functioning too well today after a trip to the osteopath!

[NickB787]

No thats great thanks no reason then why it can't be checked. I had also on a side not thought about getting a set of LSJ cams from the states as these were designed for the s/c, wonder if they would work, don't see why not

[FLD]

No thats great thanks

no reason then why it can't be checked. I had also on a side not thought about getting a set of LSJ cams from the states as these were designed for the s/c, wonder if they would work, don't see why not

Yep, dead easy to check* that you're in the right area. Its a bit fiddly / time consuming to set perfectly but it can be done. I'd be very surprised if Jon wasn't all over this!

I cant see why 'blower' cams dont work. If they are sold with this title it certainly suggests to me they should work with a supercharger.

*even Joe could do it.

[Exmantaa]

No thats great thanks

no reason then why it can't be checked. I had also on a side not thought about getting a set of LSJ cams from the states as these were designed for the s/c, wonder if they would work, don't see why not

In the US, the LSJ has the same cam profiles as the 2,2 L61 engine, but with a different timing. I assume our Z22Se has the same cam profiles, so see this chart for the correct timing:
http://www.crateengi...re/PDFS/ECS.pdf

[Mike (Cliffie)]

Same profiles, yes; same valve timing, no.

[FLD]

I'd suspect they just reduced the overlap.

[NickB787]

I'd suspect they just reduced the overlap.

to take account of the oem s/c attached?

[Exmantaa]

Just time your SE cams like the LSJ, as they get ~350WHP on E85 there with OEM cams on a Harrop.

[FLD]

I'd suspect they just reduced the overlap.

to take account of the oem s/c attached?

Exactly.

[NickB787]

Who has the comp blower cam install sheet which came with the cams? I managed to misplaced mine, wonder what extra info is on it

[FLD]

Who has the comp blower cam install sheet which came with the cams? I managed to misplaced mine, wonder what extra info is on it

Should be in the boxes with mine. If not drop comp cams a line.

[VIX]

Specs on their website?

[NickB787]

cheers specs are on there site, lots of good info as well in their FAQ section just wondering if there was any extra info around. Cheers FLD will check when they get to courtenays

[techieboy]

Who has the comp blower cam install sheet which came with the cams? I managed to misplaced mine, wonder what extra info is on it

I've got them. No more information than you've already got by the look of it. Intake cam is part no. 113251 and exhaust is part no. 113252. Can scan the spec sheets if you want but not sure it's going to help any?

[NickB787]

Who has the comp blower cam install sheet which came with the cams? I managed to misplaced mine, wonder what extra info is on it

I've got them. No more information than you've already got by the look of it. Intake cam is part no. 113251 and exhaust is part no. 113252. Can scan the spec sheets if you want but not sure it's going to help any?

thanks Matt sounds like there is nothing more

[techieboy]

Inlet cam


Exhaust cam