ok, that translater box looks interesting...and a GM MAF can work? Have you seen this? if so do you have an idea what car it was from?- part number??? Any other cars with similar MAFs..that would work??VW- AUDI -BMW-???

JIm...I have the recipe for the MAF conversion. Contact me if you are interested.

You know the old saying many ways to skin a cat?

Well there are MONEY ways to increase the HP of a 928. ;) But freaking nothing is cheap or easy.

The link in the message above shows Herr Kuhn's car with the MAF.

In theory any MAF could work, but the translator has to be calibrated for it, and the GM is the biggest, cheapest, most reliable unit and the calibration is already done for it.

thanks Danglerb!....i checked out the split second sight and Kuhns application. i like the idea of the gm maf....i would need the PSC1-009 translator???I could afford this...about $350 total?? Again do you know what auto this GM MAF is from???would my existing wiring harness fit the translator or is modification need there too? I would like to improve this area of intake and probably stop there for now.Leaving the rest stock .Possibly replacing throttle body down the line.( possibly T.B. from euro 4.7 or 85-86 u.s. 928).

Mr. Kuhn i would like to see your MAF solution....have a link or email????:)

I would do the MAF last as its a tuned element, and might need to be fiddled with all over with each change you make later. Which MAF they use is explained on the site.

Its really half a dozen things that make small changes that add up. Without the heads and cams the rest may feel pretty small on there own.

Lot of really ignorant advice in this thread.

Perhaps all you rocket scientists can explain why my 83 US 4.7 has run a best time of 13.44 in the quarter mile with a US fuel and intake system?

20 hp for a full header/race exhaust? Yeah, right. Try more like 40 to 50.

And no one (that i saw) mentioned lightening, which is BY FAR the cheapest- and one of the easiest- way(s) to make any 928 faster.

Taking a 3250lb 928S down to 3000lbs is like adding another 25-30HP, but even better, it also aids handling and braking to boot.

Full exhaust and reduced weight to 3000lbs (easily doable while maintaining a 'full' interior), and you'd run door to door with an 84 Euro.

Last Euro i raced was an 83 with a 65hp shot of nitrous and i beat him 3 runs in a row. He used to post at rennlist and 928S4VR as "Lance".

Thanks for another point of view m21 sniper...i decided to go with a AFM replacement, to a MAF and split second convertion hardware...i think just tossin out that piece of SSSHHH AFM is gonna make a large difference. I was debating throwing out my rear seats, console and carpeting...100 lbs there??

Euro envy isn't pretty.

Not my fault stock Euros are slow.

There are numerous weight savings threads on 928s if you browse the net. Hehe, i've authored a few of them. Mine wieghs 2900 lbs and still has a 95% complete interior.

Thats about 400 lbs isn't it, what did you take out?

My guess is that some "stock" Euro's in the US may have suffered in the federalizing process. Catalytic converters and some kind of O2 sensor feedback system piggybacked onto the factory system. Getting the 80-83 CIS cars to pass smog might have been real nasty.

Come on Sniper, tell us the truth, it's the hamster isn't it?

I've raced three other 928s. An 85 US (theeney, former poster at 928S4vr site), an 83 Euro (w/65 shot of nitrous- Lance from rennlist), and a 83 US (racegal from 928s4vr site).

I beat the stock 83 US by 12 car lengths in a quarter mile (5 car length spot up, and 7 lengths at the finish line). Hehe, i guess it is the hamster. :-P

I found the 85 US and the gassed 83 Euro to be identical in performance. I beat both by about 2.5 lengths from a standing start, consistently.

Among the items removed are all belt driven accessories (and associated brackets) but alternater, the entire stock exhaust (which is in itself darn near 100lbs) and replaced it with a 22lb front to rear custom 3" borla single exhaust, the factory battery with a miata battery (12 vs 42lbs), the jack/spare/pump, the belly pan, every other fender bolt, the grill, the rear wiper motor and arm, the rear visors, all the broken down and useless interior sound deadening goo (40lbs worth, i weighed it), the obsolete factory amp, the cruise control unit, the entire A/C system, and a bunch of minor brackets and fasteners from all over the undercarriage.

A lot.

And yet, i still have a fully equipped interior:

http://i22.photobucket.com/albums/b3...rMarch06RT.jpg

I Guess you dont need A/C up there like we do in Florida!!

Hehe, actually, no, didn't remove the alt OR the P/S. Everything else though :-P

Tell us the truth. It's the hamster!

I had a rat under the air filter box, does that count?

Deja vu anyone?

Hey Sniper!!!

when you gonna lose those phone dials, for another 44lbs of diet on your 928??

I just thought it was pretty good of you to bust on everybody about putting the 928 on a diet, but------

My 19 incher swap resulted in 44lbs of UNSPRUNG weight reduction. Yes, I weighed each of the 16 inch 993 style wheels and 60 series tires--compared to the 19 incher set up-- and it was a whopping 44 lbs!!

Being as how you are a proponent of weight redux, you should know (I suppose you do....) that weight redux of the unsprung variety has even more benefits than just throwing out the back seats, the passenger seat, the HVAC system and anything else you can do without.

Mmmmm........ I recall posting some pretty interesting correlations about unsprung weight reduction/hp--performance gains, so do your research, my friend, read my posts about just what you get when dump those antique wheels and tires and get the new stuff on your rig!!!

(You'll find that 44lbs of unsprung weight will give you about nearly 33% more performance [relative horsepower] in my case.)


Of course, this will just be another theory for you guys (Mule, Danglerb, and the like.....) to argue about.



P.S. I just purchased a set of Hooker header sidepipes (like the Corvettes used in Can-Am racing years ago). Couple these with any of the available headers, and you'll answer another issue----How do you put a big free flowing exhaust system on a 928 and lose weight doing it? Header sidepipes----The side tubes [4 inchers, they are] are removable, with slip in mufflers for street, without muffs for race.

Mmmm.......Can you say "German Corvette"?


-------http://www.pelicanparts.com/support/smileys/pc2.gif

And I have no doubt that you can back up this 33% performance increase. With your infallible word!