jgporsche

As promised, I went to the dyno this morning. The dyno used was a Dynapack Dyno. I have never used one of them before and i can say that i am NOT impressed. It seems to read ridiculously low. But since this was basically done for AFR results it didn't matter. Next weekend I will retest everything using a trusted Dyno Dynamics Dyno. But for those that just want to see the actual results from this, here they are:


stock: 131.5 WHP , 127.2 WTQ - GREEN

944SMAX chip: 135.1WHP , 130.8 WTQ - PURPLE

944SMAX chip and SFR exhaust: 141.2WHP , 137.9 WTQ - YELLOW

This was the first stages on this chip. The final stage should be tested late next week. The next dyno run will have 2 charts (1 with the stock chip and SFR exhaust, and the other with the new 944SMAX chip and SFR exhaust)


The last dyno run is difficult to see because the line is yellow, but it is there.

rberry951

I like showing everyone the progression of our efforts. Since you like the response your getting driving around I'm not doing much else with the low end except I'm going to map out some of that HP dip. This chip took a little out and made the TQ curve more linear, but I'm going to bring TQ in a hair earlier and get a smooth arc on the TQ line.

On the top end I've smooted out the A/F from this run and stretch the TQ curve out a little more. The pre-production release chip is on its way to you.

I'm actually happy to see ANY HP/TQ increase as my goal in this map was just to smooth it out and add better response. You just don't get a lot of HP/TQ increases from a non-turbo engine with chips alone. As you can see, the new exhaust made the biggest difference. Any mechanical attribute will have a much greater effect than the software will on the NA.

Onward and upward...

Russell

Campeck

hahaha. I LOVE IT. take that you "porsche did everything perfect" fools.

Mongo

Uh Campeck? You can make a more significant amount of power out of a 4 valve per cylinder car than a 2 valve. Remember Mr. Wilk's chips? I've seen no one post a dynosheet higher than 3-4 HP from what I recall either on Rennlist, or Pelican.

TRWright

Nice increase the whole way across-- Don't worry about the dynapack reading lower-- you were doing a comparison and you got exactly the information you needed. One thing I would worry about with the dynapack is what it will do to your clutch. . . It totally eats bad ones and chews a little bit on good ones

I have used the SFR exhaust--it is beautiful-- Tim is an amazing welder!!

Russell-- Nice work! Where in Upstate are you?

jgporsche

exactly right, i just needed the improvements.

i didn't like the way the dyno began, it seems like it would eat a clutch.

the SFR exhaust IS an INCREDIBLE piece of work. It fits like a pair of OJ Simpson's black gloves (perfect). The sound is SPECTACULAR!!!

bleucamaro

Very nice results! I'm not sure why you don't like the dynapack, they're one of the most accurate dynos out there.

rberry951

Thanks Ted, I'm in Greenville, about 20 miles SW of Albany near the Catskills.

jgporsche

a 944S from the factory has 188BHP and 170 ft-lb.

my stock run came up with 131WHP and 127 ft-lb.

are you saying their is a 30% drive train loss in HP and 25% in TQ?

the car is 18 yrs old, but it IS in tip top shape.

phooka

Actually I have had cars run on a dynopack before and seemed pretty accurate. I have noticed however that when they get hot, they both spew fluid, and become inaccurate.

dale

rberry951

Don't worry about the numbers, we'll see what the next dyno says. It was only the comparison on this one of the stock chip vs the alpha chip. And again, I didn't expect to see any HP gain, I was pleasantly surprised by that myself. I knew you would see a gain from the exhaust, as we discussed.

Anyway, I was looking at the A/F again. The alpha chip A/F line is smoother than the stock, and at peak TQ was at 11.5:1, which really isn't that bad. Since this is a non-turbo it can be leaner, but the stock actually dips quite a bit richer around 6K RPM.

Now I can't wait to see the beta dyno...

rberry951

Jesse,

More questions, what octane gas were you using and what gear was these pulls in?

Regards,
Russell

jgporsche

93 OCT, I could have filled up before i got their, but i was running late. Traffic + the bad weather was killing my time.

4th gear.

phooka

Jesse, where are you finding 93 octane around here now? My usual places seem to have all gone to 91 for some reason.

dale

jgporsche

they sell 93OCT here on post.

phooka, i haven't seen a thread about your new 944S, or any pics!