Change CHIP for more power??

pinetreeporsche · 10-04-2008, 06:17 PM

There must be about a half-dozen different manufacturer's chips that can be substituted into 944 computers which boast more power/torque. HAS ANYONE SEEN DYNO-REPORTS on any, to know which ones give best value. Some cost barely 3 figures, some nearly 4 figures. Has Pelican, or any other seller, or a magazine, or 944 racing team or organization, or any other group done trials?? My car is a '90 S2, and it does seem that each model gets its own chip, so maybe tests on all those available for all models/years is too much to expect, but some data must exist. Please-- share what you know if you've seen anything on this. [I just put $500 into a set of new Kumho tires, and now I'm ready to do the next thing to increase performance]

hpservertech · 10-04-2008, 07:35 PM

Have you done a search? This has been discussed many times.

pinetreeporsche · 10-04-2008, 07:40 PM

I started with a search, just using 'chip' - and got a very wide ranging list of postings that had nothing to do with chips (not even any paint chips!). So then I gave up and posted this thread. If you have any key words you've put up and gotten a wealth of material, please let me know what they are/were. Thanks

thekidd · 10-04-2008, 09:28 PM

I have heard the Max944Chips are good. I think I saw a while ago that it add abround 2.5 RWHP. Thats maybee, guessing 12-15HP? The Autothority chips are another top seller with 944's. The Max chips are made by a guy thats is from the Pelican crew and makes the chips just for the 944's. He has chips for the Turbo's S2's, S's and is working on one for the NA's.

petrolhead611 · 10-06-2008, 05:08 AM

I fitted one of these, very cheap via eBay, but is model specific. It shifts the rev limiter up 300rpm,what else it does I don't know, had it in situ now for over as year, mainly AutoX use,with long highway journeys to get there & back.

EMBPilot · EMBPilot's Garage

FWIW...
Ive been driving my NA for 3 years with the autothority chip. I recently removed it and put the factory chip back in. to be completely honest, i see no difference in performance. ZERO. infact, i almost feel like the car runs smoother. ??

The car has run well with the AT chip in it, im probably just going to leave the stock chip in.

J1NX3D · J1NX3D's Garage

the max chips are really good. nothing out for my market car yet

http://forums.rennlist.com/rennforums/showthread.php?t=308535&page=14

rickharrison · 10-06-2008, 11:37 AM

Quote:

Originally Posted by thekidd

I have heard the Max944Chips are good. I think I saw a while ago that it add abround 2.5 RWHP. Thats maybee, guessing 12-15HP? The Autothority chips are another top seller with 944's. The Max chips are made by a guy thats is from the Pelican crew and makes the chips just for the 944's. He has chips for the Turbo's S2's, S's and is working on one for the NA's.

MaxHP chips are made by Russell Berry...they are specific to model of 944. He has recently done a new S2 chip, and is testing the NA chip I believe. Try his website out: www.maxhpkit.com

I have the S chip and I noticed an idle improvement and the throttle is more responsive. He has dynoed results too.

plus, he's a nice guy to talk to when you cannot open your DME's board....

JHinOH · JHinOH's Garage

I dynoed the 944max chip for my 88, got about 1.9hp and 2tq. over stock. The timing advance makes the car feel a touch more responsive. My guess is that is about all you will get with a chip unless you want to run a race gas chip with crazy timing advance. I've also had the Authority chip in my car and the previous owner had a Eurorace chip, both in our opinion made no difference (couldn't give you a dyno number on those)

- oh, and I should add that I had a '89 S2 with the Autothority chip in as well and I did notice a slight better low/mid range response over stock, but please don't believe claims of 10+ hp gains with any of the N/A chips.

TJFORGUE · 10-07-2008, 04:28 AM

I had an Autothority chip in my 90 S2 but changed it to a ProMax chip and was very pleased with it.

flash968 · 10-07-2008, 06:49 AM

it is unfortunate that you don't get the gains on the 944 chips that we do on the 968 chips - the one i have now makes over 15hp (yes, dyno proven) - most of the chips made over 10 - i wouldn't have thought it would be that much of a difference between the models, and something more proportionate to the initial power number (something like 6-9 on the 2.5 and 9-12 on the S2)

pinetreeporsche · 10-09-2008, 04:56 AM

Quote:

Originally Posted by flash968

it is unfortunate that you don't get the gains on the 944 chips that we do on the 968 chips - the one i have now makes over 15hp (yes, dyno proven) - most of the chips made over 10 - i wouldn't have thought it would be that much of a difference between the models, and something more proportionate to the initial power number (something like 6-9 on the 2.5 and 9-12 on the S2)

Can you tell us which company made the chip that upped your 968 so much? My S2 being somewhat similar, I might write them for their statistics with my model. Thanks! (from the originator of this thread)

Schwarzeritter · 10-09-2008, 05:57 AM

There are a lot of good piggy back system that are very user friendly.
We smooth over a 944 with the addition of a wideband oxygen sensor added too his aftermarket 1-off exhaust. Using a Apexi air fuel controller which was not bad too use ended up costing a total of 150.00 for the Airfuelcontroller. We for fun spent 45min on the dyno dottled with the timming.

However I would recommend something along the lines of a Piggy back as there alot more indepth and with paciants and time you can extract some very good numbers but you'll need too know how the Porsche factory ECU and how far you can push it with out upseting the ECU. However this is not as problematic as say that of OBD II cars.

I think the cost is about the same as most chips. excluding the 150.00 + you might spend on a dyno but you'll have a tune set up for you specific state of tune.

flash968 · 06:01 AM

they do not make a chip for the S2.........yet - so, no help there - sorry

i did a bit of quick digging however, and autothority (probably the biggest chip maker and has been around forever) makes one that they claim 17hp and 16ft/lb with - their claims are probably accurate too, based on the fact that they claimed 11hp and 10ft/lb on their 968 chip, and that is EXACTLY what we saw on the dyno in multiple tests - it wasn't the best chip for the 968, but certainly seems to be decent for the 944 series

i found a link to their site:

http://www.autothority.com/products/ECU-Upgrades.html

rickharrison · 06:31 AM

I'm pretty sure Russell has an S2 chip....yep...8-10 RWHP average gains.

The S chip has dyno runs shown on the website...4-6 RWHP average gains.

krystar · 10-09-2008, 07:36 AM

kind of a noob question...but what really holds the 944 engine back? is it the ignition system? or the air intake system? a modern 4cyl 2.5L NA would be well capable of producing much more than 160tq

flash968 · 10-09-2008, 07:49 AM

there are a lot of factors involved, but that is actually pretty respectable - remember that a modern 4cyl would also have variable timing and intake control too

rberry951 · 08-18-2009, 11:36 PM

Old thread, but we currently carry chips for the 944NA/S/S2, as well as the 3.2L 911 Carrera, and very soon will be carrying chips for the 964, 993, and 968. Not to mention the tuning tools and other products not mentioned here. I'll limit this conversation to the products Pelican carries as one of our resellers.

Regards,
Russell

HondaDustR · 08-19-2009, 12:33 PM

Russel's chip will definitely get your attention if you switch back to stock. The WOT is a little more powerful, but part throttle, esp in the low rpm range is miles ahead of the stock chip.

Damian in NJ · 11-20-2009, 11:48 AM

Try Promax; many other 968 owners I know prefer it above all else. 16hp and 18lb/ft improvement for S2's.

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