[rxter]

Finally getting around to install the Welmiester chip (thanks again Brian). And I find a couple of interesting things. I'll post some on another thread later. Here I need some help regarding teh chip itself. Instead of the chip presenting as in the PorscheG96's DIY http://www.968forums.com/index.php?showtopic=6 , I see this.

   

Looks like the chip is simply protected in a plastic cover, but since this thing runs the car I don't want to break anything. Anyone seen this before? Ideas as to how to remove? Do I need to put the new chip in the sleeve?


Thanks

Joe

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[kwikt]

Yes that is the plastic cover. Simply unclip the plastic protector from underneath then carefully pry the chip from the socket evenly. Then install the new chip evenly. Note the direction of the OLD chip and install the new one the same way.

Oh.... and place the protector back over the new chip. It clips over the chip. Have fun!!!!!!

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[rxter]

Yep - piece of cake. So the other items.

Found this tucked into the pocket behind the bracket.


   

The car phone - remember those [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]

Details for you archivists.


   


One other thing. Anyone know what the 2 pin connecter coming from the wiring harness is for?

   

Now to the butt dyno. Smooth idle no problem. A bit of an odd stumble going slowly in 2nd - 2000 RPM. Power delivery seems much smoother, especially at the 4K intake bump. Seems like the tuner smoothed that out so that the air comes on more gradually in that range - dunno, but it is smoother.

Also seems to get to high revs faster, and definately a higher RPM limit. No overheating at all, although it is a nice cool day here (75ish). Very nice mod and well worth the effort. Car is quicker for sure. Mike thinks is sounds meaner too. I'm not so sure, but who am I to argue, especially with compromised hearing (too much load rock and roll in the early days).

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[flash]

yeah - the weltmeister chip did well in the shootout - it took second then, behind the racer x, which would put it third now, since the rs barn chip didn't exist yet, but still nice - yes, that rev limit is high - watch out

have fun

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[rxter]

I checked out the original thread with the shootout results link to 9Mag. No dice on that link (it's several years old so no great surprise). Does anyone have a copy that they might point me to? I'd love to see the results.

And FWIW I have a few more pics that I would be happy to insert into the original DIY for this or provide if someone want to include them (I can't reply to the DIY).

Thanks

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[flash]

the article has now been pinned at the top of the "Chips and Salsa" section

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[rxter]

Thanks Bob! You da man. Just read the article. Very interesting. Especially enjoyed the bit about Dave's 'its gonna blow' face. I know that feeling.

We had so much fun running through the gears yesterday that I decided to drag her into work with me today. Hope traffic is light this PM [img]style_emoticons/<#EMO_DIR#>/wink.gif[/img]

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[bva]

glad to hear the chip is working for you. that car phone transmitter looks more like another counterweight...

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[flash]

thanks - had a ball writing it - happy to help too - thought it was already up there - it's been so long i totally forgot about it - but, it prompted me to take a look at what else is missing - look for more stuff to start popping up - i just have to change some file formats and then i can post the stuff

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[DaveN]

That Motorola adapter is a paper weight now as it's a 3 watt analogue amp and most of that stuff is turned off now. At least the phone company I work for (Telus) turned down all that stuff last year.

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[flash]

i wonder if it could be used as a linear amplifier?

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[DaveN]

It's an RF amp for CDMA technology so if you have a 800 Mhz application I don't see why you couldn't monkey with it. Not much good for anything but that freq as there will be serious band-pass filters due to FCC regulations.

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[flash]

if it has fixed discriminators limiting it to 800mhz, then it won't help me - but if it had selectable ones, then i could open it up

the cb linears i used to run would amplify anything put through it, regardless of frequency - was pretty funny too - every time i would run up next to an early 911 and key up, their ignition would cut out

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[flash]

p.s. - getting back on track about the chip swap, and at the extreme risk of yet another long drawn out chip debate:

there has been a lot of silliness elsewhere about rev limits and such - both of the serious 968 engine builders consulted agree that there is no issue with occasional revving of the engine well up over 7k, and feel that the valvetrain is good for about 8k - the only issues would be sustained revs at high levels - the only failures seen so far have few, all been oil related, all in the bottom end, and all on the track - while nobody is going to step out on a limb and say "go for it - rev away" thus far there has been no evidence to indicate that in street application the occasional short burst rev over 7k does any harm - we've seen chips out there now with rev limits of 7.8k for over 10 years, and we haven't heard anything attributable to the chips yet

there is only one dissenting opinion, and he wants to sell you a complete solid lifter valvetrain - even that one comes to us second hand with no evidence to support the opinion

obviously there are factors involved, like the age of the engine, yada yada, and you have to use common sense here

one thing to consider in choosing a chip, is what else is being done to the engine - for example, a car with a chip that is designed with a stock airbox and filter will not behave the same with the airbox mod - it will generally run leaner - sometimes this is not planned for, and can cause issues - there is a popular chip out there (not the rs barn chip, and we don't want to start pointing fingers) that is now known to run lean when used in conjunction with the mod - high revs in that scenario could be harmful - in that case, one might think about adding a pound or two of fuel pressure to compensate if you plan to visit that rev range regularly - a trip to the dyno shop or using an analyzer to know the status would be a good idea with any chip not designed to be used with the airbox mod

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[rxter]

To continue not pointing fingers, I put the Weltmeister in and I did the airbox mod. Any lean burn issues there?

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[flash]

i have not tested the weltmeister with the airbox, so i cannot tell you for certain - that is one of the reasons i didn't want to go into specifics of which one did what, and only mentioned the one that we know has been tuned to accommodate it

i do have A/F charts on the weltmeister chip buried on my drive, and can look at them and estimate how much leaner it would run - i'll try to have that info for you when you get here on saturday

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