960 replies to this topic

[smiley]

That is the plan yes

[techieboy]

The choice for balance shaft removal did seem to buy me a membership into this club though. http://www.vx220.org...7-gearbox-woes/

Really? You reckon it's the lack of balance shafts? Maybe I should just stick with the Z22SE and it's lack of any rattles despite the lightweight flywheel and no balance shafts, rather than twat around with a B207.

[smiley]

 

Really?

 

 

Well, the gearbox was not touched, and fine before conversion.

It seems to be a resonance game, which is at worse when gearbox oil is heated up, and i just coast the car and then go slightly off throttle.

To make matters worse, i have poly inserts in the engine mounts.

One of exmantaa's mates removed his rear poly inserts, and it got slightly better.

 

The jury is still out on the conclusion for the gearbox woesh issue (as you can read in the official topic), but resonance seems to be the dutch verdict so far.  (due to shafts, inserts, flywheel, combo or whatever)

Edited by smiley, 22 May 2014 - 09:57 PM.

[smiley]

The conversion itself has been described in many topics, but he're a few things we did our own way.

 

Saab sprockets do not have timing marks on them.

 

Just replace them for Z22SE or LSJ sprockets. They are identical, and makes life easier to set the timing.

 

 

We used a tool to move the oil bearings after balance shaft removal. (versus hammering them in 7.5mm with brute force)

 

 

External trigger mounted:

 

And the end result.

 

 

Edited by smiley, 22 May 2014 - 10:05 PM.

[Graeme Lambert]

That is the plan yes

Wow. Won't that have some 'interesting' consequences?

[Graeme Lambert]

The choice for balance shaft removal did seem to buy me a membership into this club though. http://www.vx220.org...7-gearbox-woes/

Really? You reckon it's the lack of balance shafts? Maybe I should just stick with the Z22SE and it's lack of any rattles despite the lightweight flywheel and no balance shafts, rather than twat around with a B207.

Though remember lee has noticed a rattle and has z22 still Matt. I have no idea for the technical reasons but can't help but think his and mattys issue is flywheel or clutch plate related.

[CHILL Gone DUTCH]

 Really?  

  Well, the gearbox was not touched, and fine before conversion. It seems to be a resonance game, which is at worse when gearbox oil is heated up, and i just coast the car and then go slightly off throttle. To make matters worse, i have poly inserts in the engine mounts. One of exmantaa's mates removed his rear poly inserts, and it got slightly better.   The jury is still out on the conclusion for the gearbox woesh issue (as you can read in the official topic), but resonance seems to be the dutch verdict so far.  (due to shafts, inserts, flywheel, combo or whatever)

It would be really good to get to the bottom of this as it seems to be piping up regularly, Personally I gave not noticed the problem but would still like to know what is causing it, as graham said the common culprit could be clutch, clutch plate flywheel or inserts. My setup around this area is Black poly inserts Ttv lightened fly wheel Paddle clutch Standard clutch plate Did lee have the problem before his clutch went ??

[smiley]

 

That is the plan yes

Wow. Won't that have some 'interesting' consequences?

 

 

It depends on how safe you want to be, and what guide you follow.

Saab's maptune software goes to 310 horsies, but also to 400nm (295 lb/ft)

Both examntaa's lsj and his mate running a Z20net are fine so far. 

In the US al those lsj/harrop boys are also fine.

 

My plan is to run an as large fully as possible to get near 350 horsies, and use water injection to cool the system as much as possible.

 

Worst case i will have to put in a new B207 next winter. 

Edited by smiley, 23 May 2014 - 07:24 AM.

[Graeme Lambert]

 

 

That is the plan yes

Wow. Won't that have some 'interesting' consequences?

 

 

It depends on how safe you want to be, and what guide you follow.

Saab's maptune software goes to 310 horsies, but also to 400nm (295 lb/ft)

Both examntaa's lsj and his mate running a Z20net are fine so far. 

In the US al those lsj/harrop boys are also fine.

 

My plan is to run an as large fully as possible to get near 350 horsies, and use water injection to cool the system as much as possible.

 

Worst case i will have to put in a new B207 next winter. 

 

 

How far is so far? Many miles? And at what power?

 

G

[smiley]

Exmantaa's mate is at about 325. No idea on how many miles he's done.

Exmantaa himself just put his harrop on this week.

I will hopefully follow in a few weeks.

 

There is no 100% guarantee at this stage. I't just needs to be done. Then we know.

 

[Graeme Lambert]

Exmantaa's mate is at about 325. No idea on how many miles he's done.

Exmantaa himself just put his harrop on this week.

I will hopefully follow in a few weeks.

 

There is no 100% guarantee at this stage. I't just needs to be done. Then we know.

 

 

Agreed.

You boys first though please

[smiley]

 

Agreed.

You boys first though please

 

 

No problem.

Of course if you want to see the result after 20k miles or so, you may have to come back to this topic in 5 years.

[oakmere]

Smiley How did you find your cam timing on the std sprockets as Comp Cams are not known for being accurate but the ZZP may be better?

[Exmantaa]

ZZP say they checked the timing of their Comp Cam versions, so we rely on this. It's possible to check with a degree wheel and valve lift measurement, but taht's quite a tedious process. Think Vocky posted something about this method a while ago.

 

It will be interesting to see which of the 3 Harroped 2.0 engines will surrender first; my original US LSJ engine, Speedster4fun's Z20NET version or Smiley's latest Saab B207...

[NickB787]

My comp cams had to be timed properly using the above method CMS did it I used Saab cam gears for it as they were so far out it was stupid, that was the original 360bhp run when we first fitted the tvs, only cost me years and ££££ to find this and I don't joke....

[NickB787]

double post

Edited by NickB777, 23 May 2014 - 04:40 PM.

[vocky]

ZZP say they checked the timing of their Comp Cam versions, so we rely on this. It's possible to check with a degree wheel and valve lift measurement, but taht's quite a tedious process. Think Vocky posted something about this method a while ago.

 

 

With the correct equipment it's quite simple to 'vernier in' the cams, only takes a few minutes with the engine out of the car.  

[Exmantaa]

Engine out is a lot easier yeah... ;-)

[Speedy4Fun]

 

How far is so far? Many miles? And at what power?

 

G

 

 

Around 325bhp  7600rpm max

done 8000 miles so far.

Including a few trackdays

 

That was with LSJ cams, now installed ZZP stage1 cams.

Need to do some ´road testing´ to recalibrate the LSJ ECU.

[CHILL Gone DUTCH]

Is anyone else suffering from a lot of crank pressure on these b207 ? Can someone explain what causes crank pressure