Timing covers to put T5/T7 cylinder head on B202?

[Jordan]

New generation T5 900s 2.0L produces only 130hp, that is about the same as stock 1986-1990 900s.

I didn't think they made a t5 2.0 n/a, I thought they were all 2.3 ~150hp? Maybe it was a euro thing.

[Luke]

I didn't think they made a t5 2.0 n/a, I thought they were all 2.3 ~150hp? Maybe it was a euro thing.

I don't think T5 management was ever used on an NA either - I think it was bosch motronic.

[Crazyswede]

Drew,
I've been thinking about using a T5/T7 head on my next project, an NA, headered, 2.1 99. It may even get ITBs...
I like the idea, but at that price, isn't it just easier to install a plug in the head?

john

New generation T5 900s 2.0L produces only 130hp, that is about the same as stock 1986-1990 900s.

In the USA market I am pretty sure that all the 94-98 NG900's were 2.3 litre non turbo, 2.0 turbo, or 2.5 litre V6. I have never seen a 2.0 litre non turbo in the NG.

[squaab99t]

I think someone missed the point. John's Frankensaab is just that. Use the T5 as a standalone engine management, and tune the fuel and ignition maps. This is the same capability as using a $1K DTAfast, Motec or EMS ECU. Obviously the maps will not make use of the loads above atmospheric, but you can still tune everything below and shoot for a nice flat torque curve. Both John and Craig's engines will not be close to stock, so 130hp is a bad point of reference. I'm sure Saab tuned for emissions, economy, and longevity.

[Luke]

I think someone missed the point. John's Frankensaab is just that. Use the T5 as a standalone engine management, and tune the fuel and ignition maps. This is the same capability as using a $1K DTAfast, Motec or EMS ECU. Obviously the maps will not make use of the loads above atmospheric, but you can still tune everything below and shoot for a nice flat torque curve. Both John and Craig's engines will not be close to stock, so 130hp is a bad point of reference. I'm sure Saab tuned for emissions, economy, and longevity.

Sounds good to me! SOMEONE needs to build the ultimate B202 NA 16V for use in a 99 or lightweight 900. To me it sounds like John, Seth, Mike, Craig need to gang up on the development so efforts are not duplicated.

[Luke]

Also, did anybody ever see this thing? Could bolt ITB's on it too :)

[Jordan]

So was the intent of that manifold to use ITB's or webers , or was it a "Choose your adventure" type of thing? I've got a carb body (or two) that would be perfect for ITB use.

I've also got a 2.1L motor that is dying to be rebuilt :D

[Luke]

I built it for someone in the UK, uses a std weber DCOE bolt pattern so could be used for anything that bolts on, most ITB's seem to use that bolt pattern as well.

[Crazyswede]

I think someone missed the point. John's Frankensaab is just that. Use the T5 as a standalone engine management, and tune the fuel and ignition maps. This is the same capability as using a $1K DTAfast, Motec or EMS ECU. Obviously the maps will not make use of the loads above atmospheric, but you can still tune everything below and shoot for a nice flat torque curve. Both John and Craig's engines will not be close to stock, so 130hp is a bad point of reference. I'm sure Saab tuned for emissions, economy, and longevity.

Sounds good to me! SOMEONE needs to build the ultimate B202 NA 16V for use in a 99 or lightweight 900. To me it sounds like John, Seth, Mike, Craig need to gang up on the development so efforts are not duplicated.

I have the block, the head, the headers. I need the timing cover, a 9000 2.3 crank, rods and pistons, and need to decide how crazy I want to go with the flywheel. looked at one option which you could use a compact multi-disc clutch bolted to the pressure plate from an automatic...so basically no flywheel and all rotating weight is in the center.

[Jordan]

I think effort should be put into some nice 16v N/A cams. Now that Luke has been through the process (or is still in the process) he could probably come up with some good street/race specs for a standard or lightly modified head. Without cams ITBs, header, and headwork would all be in vain.

Also you'd probably want to set up with dual valve spings/retainers..man I would not look forward to setting the valve clearances on that! Eight is enough!

[Crazyswede]

I think effort should be put into some nice 16v N/A cams. Now that Luke has been through the process (or is still in the process) he could probably come up with some good street/race specs for a standard or lightly modified head. Without cams ITBs, header, and headwork would all be in vain.

Also you'd probably want to set up with dual valve spings/retainers..man I would not look forward to setting the valve clearances on that! Eight is enough!

Jack Lawrence might be a good person to talk to about cam specs...then again he focuses on 8v stuff so maybe not...hard to say.

Luke mentioned that there was a solid lifter that swapped into the 16v head nicely. Double valve springs should definitely be on the list.

[DrewP]

Picked up some stock this week to make the weld-in inserts, I'll put up some photos when the first one is done.

Drew

[dan-the-kid]

Totally in for a poor mans DIY epoxy in place insert!

Either on the head side, or the timing cover side.

[DrewP]

That will probably be fine, the rolled strip my brother bought I think is only 1/4" thick though, so you'll want a nice big JB fillet on the bottom of the pieces, and make sure you get them CLEAN.

Wouldn't be a bad idea to sand up the bottom surface to get some good adhesion, but I think it'll be OK.

Actually, if you could get in there you could drive some small machine screws through the edge of the cover to hold it in place till epoxy sets too, you could come up with a bunch of ways to secure them.

[DrewP]

Too many things going on at once - we have the stock and covers all measured, but my brother hasn't had any free machine time, too busy doing stuff for the FSAE team, will update when I have them.

They're coming though!