dmjames

Ok, should have been more specific- it's not that holding those speeds is a problem, that just takes a more controlled touch with the pedal. What actually gets to me is that at that slow of a speed, it's easy to have every bump that you feel from the road translate through to just the tiniest bit of a tap on the throttle, and with the grunt the NA has at low rpms, I can get jerked around a little bit. It's a really minor thing, honestly, but it is noticeable.

On a different note, I saw the dyno charts from the 2 degree camshaft timing advance, and am totally sold on that shift, but I can't seem to find if anyone's done the same with the 4 degree key. I'm leaning towards the larger offset, but it seems like there's not much reference out there on what the more measured impact is vs. the 2 degree. Anyone have any specifics on pros/cons between the two?

V2Rocket

Rogue did testing with 4 degree advance and his MAF kit.
I did testing with 2 degree advance and his MAF kit+ my tuning and got the same power numbers.
I think I could have gotten more power if I had gone to 4 degrees and more tuning.

Either way is a very good thing to do. Even if you have the stock AFM setup, the advanced cam really helps the car a lot.

...buy my MAF kit...

BoulderGeek

I popped on the round cam as one of the first mods to my NA. I also put in a 944MAX DME chip (24-pin). The car has lots of torque and is snappy.

I have a very stiff suspension, as well. I have noticed that guest drivers will get this surging from the throttle. Sort of like firing a semi-automatic pistol at the range and having the recoil snap off two shots when you only expected one. But, I guess that I am just used to it. I couldn't imagine using the stock cam again.

dmjames

Ok, good to know. Seems like the 4-degree advance is worth a run to me.

And man, I'd love to pick up that MAF/tune rig, but there's too much essential work to do before I drop $1k that I don't have to! I've got around $1k in parts and tools for all the belts/rollers/water pump and a front engine re-seal, plus I need a new transmission (3rd gear synchro is shot, so I just rev-match it, but now the synchro for 4th is acting up too...)...

mytrplseven

Maybe it's time to put in a 5R transmission (LSD)while you have it out. I see them for around $1200 plus shipping.

dmjames

Seriously, you're just evil. God knows I want an LSD transmission, and a MAF + tune, and whatnot... But at pushing $900 more than I can come up with a good-condition, low-mileage normal transmission, it's hard to justify.

V2Rocket

$850 shipped, this week only
PM me....

FRporscheman

Let me help you avoid the expense by being a topic **** and saying LSD is off-topic; it's not a simple (i.e. cheap) mod, and it doesn't make the car waaay better to drive around. There you go

FRporscheman

$850 is a good deal though......

dmjames

Yeah, but it's for the MAF/chip setup, not the LSD. Still a good deal, but also still over the top for my daily driver too.

V2Rocket

The MAF will make it 400% better to drive

psychoideas

Ok, I'm a novice on the AFM, MAF, MAP thing, what is this MAF. And how is it different to the AFM.

Cheers.

odonnell

The AFM is a mechanical device...it has a spring-loaded door that is opened as the engine draws air through the intake tract. It's a restriction to the flow, but that was pretty much the best thing to do back in the day.

MAF accomplishes the same job (measuring how much air flow is going into the engine) but does so using a much less invasive instrument...a "hot wire" that protrudes into the intake tract but does not substantially impede the flow. Hence why it's an upgrade.

The real upgrade is with the tune that most MAF kits come with, the stock 944 tune can be improved on pretty easily.

A MAP is totally different scheme but via an accurately programmed table, can be used to measure intake flow. I've run the AFM, MAF, and currently MAP on my car and can tell you, the latter 2 are the way to go if you can be bothered.

psychoideas

Excellent. Thank you for detailed answer. So is this MAF kit a direct replacement or are there other mechanical things need to be done to make it fit/work?

odonnell

The one V2 is selling is plug and play. Doesn't get much easier than that. I ran a related part from the same manufacturer on my NA last year and it's a treat. Anyone serious about making the most out of their 944 should investigate upgrading this area, the AFM is sadly a huge bottleneck and the stock tune leaves much to be desired (it was the 80s, just look at what was happening with American cars.)