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PostPosted: Thu Apr 15, 2010 7:52 am 
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Joined: Fri Aug 05, 2005 6:51 pm
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Location: Cheshire
Car Model: Saab 900 and 99
espin9000 wrote:
I have a 'new' 99 to play with, I picked it up last week.

I will certainly be keeping a lookout for one of those louvres, but I should think they are like rocking horse s** :wink:


I suppose they are quite rare, but i have two brand new louvres or 'Jalusi' complete with instructions and fitting kits :)

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PostPosted: Thu Apr 15, 2010 8:45 am 
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Carpin' On
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Joined: Mon Jan 23, 2006 1:41 pm
Posts: 21017
Location: Derby Township
Car Model: SAAB 900S/SCIROCCO GT
Does that mean you have a 900 hatchback one???????????????????????????????????????

:corn: :corn:

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PostPosted: Thu Apr 15, 2010 9:15 am 
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Location: Cheshire
Car Model: Saab 900 and 99
No, just for the 99 2-door.

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PostPosted: Thu Apr 15, 2010 9:32 am 
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Carpin' On
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Joined: Mon Jan 23, 2006 1:41 pm
Posts: 21017
Location: Derby Township
Car Model: SAAB 900S/SCIROCCO GT
:cen: Oh well

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PostPosted: Thu Apr 15, 2010 8:27 pm 
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Arkwright.
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Joined: Sat Jan 20, 2007 6:33 pm
Posts: 35541
Location: NETTLEHAM, LINCOLNSHIRE
Car Model: 2x 99GL, C900i & Volvo V70
sonett wrote:
espin9000 wrote:
I have a 'new' 99 to play with, I picked it up last week.

I will certainly be keeping a lookout for one of those louvres, but I should think they are like rocking horse s** :wink:


I suppose they are quite rare, but i have two brand new louvres or 'Jalusi' complete with instructions and fitting kits :)


Dave, If you ever fancy selling one, or you know of one thats coming up for sale let me know :wink:

The same goes for twin headlight sets :wink:

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PostPosted: Fri Apr 16, 2010 9:10 am 
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Location: Cheshire
Car Model: Saab 900 and 99
espin9000 wrote:
sonett wrote:
espin9000 wrote:
I have a 'new' 99 to play with, I picked it up last week.

I will certainly be keeping a lookout for one of those louvres, but I should think they are like rocking horse s** :wink:


I suppose they are quite rare, but i have two brand new louvres or 'Jalusi' complete with instructions and fitting kits :)


Dave, If you ever fancy selling one, or you know of one thats coming up for sale let me know :wink:

The same goes for twin headlight sets :wink:


OK, will do.

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99 EMS '77
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PostPosted: Fri Apr 16, 2010 10:06 am 
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Location: Cheshire
Car Model: Saab 900 and 99
After fitting the 'new' engine with the hotter cam and throttle bodies, i noticed when driving the car the brakes took more effort, this is down to the reduced vacuum available from the inlet manifold, to overcome this i have fitted a dedicated vacuum pump liberated from a 9000 auto, fabricated a bracket for it so it sits in the front inner wing space and wired up to an 'ignition live' with an inline fuse. Just need to tidy up the wiring.
Image

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PostPosted: Sat Apr 17, 2010 8:02 am 
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Location: Cheshire
Car Model: Saab 900 and 99
The rubber hose at the end of the hydraulic clutch pipe was looking a liitle worse for wear, a little ballooned and starting to crack, i did originallythink about just having the rubber section renewed, but getting the entire pipe out with the engine in place is a little tricky, never mind trying to get it back in! So i had a ptfe lined stainless braid hose made up by Think Automotive, for around £40 including all the fittings. I also fitted a new slave cylinder, the clutch action is so much better now :)
Image

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PostPosted: Fri Apr 23, 2010 11:19 pm 
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Put a SOC in it!
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Joined: Mon Feb 07, 2005 4:48 pm
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Location: Fliptop Towers, North Yorks...the flat bit.
Car Model: One or two...
I put a Goodridge braided clutch line on the 96 and it feels much better now, more travel at the slave for a given pedal travel too. With hindsight it would have been good to do the same job on the 9-5, if I had done maybe it wouldn't have left me stranded in the middle of Brum last summer...

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PostPosted: Tue May 18, 2010 3:55 pm 
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Joined: Mon May 10, 2010 10:47 am
Posts: 11
Location: Arvidsjaur Sweden
Very intresting. Im going to try to build something similar but with Dellorto 40:ies and EZK ignition. I have some questions.
where did you buy that CAT cam and what did it coast?
The exactly compressionratio?
What did the head coast?
Are you using Peugeot buckets?
What manufactor on inlet walve? In Sweden they often use volvo walves.
So changing exhaust walves are not nesesary for this amount of power?
Do you have more pictures of that headwork?

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PostPosted: Wed Jun 09, 2010 12:58 pm 
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Joined: Fri Aug 05, 2005 6:51 pm
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Location: Cheshire
Car Model: Saab 900 and 99
Emil N wrote:
Very intresting. Im going to try to build something similar but with Dellorto 40:ies and EZK ignition. I have some questions.
where did you buy that CAT cam and what did it coast?
The exactly compressionratio?
What did the head coast?
Are you using Peugeot buckets?
What manufactor on inlet walve? In Sweden they often use volvo walves.
So changing exhaust walves are not nesesary for this amount of power?
Do you have more pictures of that headwork?


If your budget allows go for standalone ECU (DTA S40) and throttle bodies, you won't be dissapointed :)
I purchased the Catcam through Dave Baker (Puma Race Engines) it cost around £180. The compression ratio is 11:1. The work carried out on the head including the 44mm inlet valves was around £700, not exactly sure. On this engine it has the standard Saab buckets, my other head has Peugeot buckets.
The inlet valves are a special production for Puma Race Engines, very strong and light.
With 44mm inlet valves there is no benefit to fitting larger exhaust valves, if you fit 46mm inlet valves then you should also fit the larger exhaust valves.
There are some pictures further back of the head.

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99 GL '83 Turbo Killer
99 EMS '77
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PostPosted: Wed Jun 09, 2010 1:49 pm 
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Full Pressure Turbo

Joined: Wed Aug 09, 2006 3:45 pm
Posts: 900
Location: Pembrokeshire
I don't think EZK works on its own as it takes a feed from the fuel ECU

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PostPosted: Sat Jul 10, 2010 2:17 pm 
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Joined: Mon May 10, 2010 10:47 am
Posts: 11
Location: Arvidsjaur Sweden
ejenner wrote:
The BMW 6-pot is really old. That comes from some time like the 1930's or somewhere around then. Obviously BMW will have changed a lot since the original design... but the H engine isn't the first version of the trimumph engine either.

ejenner wrote:
217bhp at 8500rpm... agreed... not an H engine... but still... hows that for a target!

Image

sonett wrote:
Horses for courses, that engine would really only be any good for what it was made for, racing. As for the claimed bhp figure, i am not too sure.
B or H engine, there really isn't much difference as to what power they could produce.
Pumaracing wrote:
Might be fun to do a proper race one. Forged pistons, lighter internals, race cam, big CR, high octane fuel, maybe a bit of time on the flow bench instead of just my best guess at port shapes. 200 bhp should be there or thereabouts.
Maybe if you take the revs up far enough then you will get this output!?

This is the original manifold design for the 8v. There is another type of cast manifold but I don't think that would be worth bothering with.

Image


You can also get an aluminium flywheel for these engines.

Image


Where did you got that gearbox from? I have the same, GM 558 04, on my 900 T16 aero -89. I was told that no cars with that primarygearing was ever sold in Sweden but i do think that my gearbox was there when it was sold, meybe all aero had it. There is only eleven 900 T16 aero -89 left in Sweden.

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PostPosted: Sat Aug 14, 2010 6:13 pm 
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Joined: Fri Aug 05, 2005 6:51 pm
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Location: Cheshire
Car Model: Saab 900 and 99
The MSS manifold fitted to the car during all of this tuning has been an unknown quantity to some degree, after talking with Dave i decided to carry out some alterations, primary and secondary pipes were both 44mm od, it was easier to alter the primary pipes, so these have been reduced to 39mm od.
The first run on the rollers had the 40mm inlet trumpets fitted, peak power was down by a few bhp, no big deal, but then we overlaid the graph from a previous run with the old exhaust manifold and same size trumpets, low down torque up to around 3500rpm had jumped up, at 2500rpm it has increased by around 7lb/ft.
Image

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PostPosted: Sat Aug 14, 2010 6:43 pm 
thats a fantastic power output for an older non turbo engine.


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PostPosted: Sat Aug 14, 2010 6:54 pm 
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Location: Cheshire
Car Model: Saab 900 and 99
OK, so much for the short trumpets, Andrew was in no rush to go home and he seemed as interested as me to see what the 90mm trumpets would produce, 5 minutes later the longer trumpets fitted and we're ready for another run.
Comparing this run with a previous run, with the old manifold and 90mm trumpets, peak power was up by a tad over 6bhp, but this time it kept rising, i told Andrew not to go over 6500rpm, so 166bhp was it's limit at 6300rpm, maybe we could have reached 170, but in this case i am happy with what i've got, a very respectable fast road car :).
Torque also increased, almost throughout the entire rev range and peak torque was up by 6lb/ft.
Image

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PostPosted: Sat Aug 14, 2010 7:07 pm 
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Location: Cheshire
Car Model: Saab 900 and 99
To conclude, the smaller primary pipes have made a difference, but the difference was improved further by using the 90mm trumpets. Here is a final graph with the new exhaust manifold comparing the 40mm and 90mm trumpets.
I think with the ultra big valve head and wilder cam a different manifold may be needed altogether. I have since learned about two manifolds available from Sweden, similar in design to what i already have, but with larger pipes, 42mm primary/48mm secondary and 60mm exit pipe, this one is intended for 2150cc rallycross, the other even larger with 44mm primary/51mm secondary and 64mm exit pipe, intended for 2400cc rallycross.
Image

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PostPosted: Sat Aug 14, 2010 7:20 pm 
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Saab Nut
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Joined: Mon Dec 18, 2006 6:08 pm
Posts: 1488
Location: New Romney, Kent
Car Model: 99 8v T project, c900i Vert
Thats quite a spikey torque curve at low revs, is that down to the lumpy cam?

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PostPosted: Mon Aug 16, 2010 2:02 am 
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Posts: 42
Another 6 bhp and 5 ft lbs just from getting the primary pipe size correct is a superb result and better than I was expecting. However it shows how important manifold design is and how far out the 44mm primaries on the original system were. By my calculations primaries that big wouldn't be needed for engines with less than 220 bhp. The new size I specified (1.5" o/d) is designed to cope with up to 185 bhp so this will also be correct for the ultra big valve engine with a bit more cam. Let's hope we get close to the 180 bhp mark with that one which I'll consider a pretty acceptable result for a 2 litre road driveable 8v engine with a standard bottom end. Hopefully Dave will be assembling and fitting that one in the next few weeks.


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PostPosted: Mon Aug 16, 2010 9:25 am 
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Put a SOC in it!
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Location: Fliptop Towers, North Yorks...the flat bit.
Car Model: One or two...
Looking good Dave. One of these days you'll give me a ride in it!

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