I'm a newbie with an 87 Carrera Cabriolet. I want to ad a little "umph" but not familiar with quality after market items such as headers, exhaust, cold air intake and power chips. Could anyone direct me as to what they would install. I see MEGA power chips with pricing all over the place. Thank you.

 

The proven recipe: cat bypass, sport muffler and a 911Chips.com chip.

You already have a great cold air intake, by virtue of your engine fan, and while your exhaust is a 2-into-1 that shouldn't be as good as headers, with the bypass pipe and sport muffler, it pretty much is.

 

On my 86 Carrera I have a K&N filter in an unmodified stock housing, a Dansk sport muffler and a 911 Chips. The difference in mid range torque and driveability over stock is very very marked. (no affiliation - just great products)

 

Has anyone replaced the intake/filter before doing the other exhaust stuff ? I've done a Fabspeed cat-bypass and Dansk sport 1in/1out for my SC. Since I can't do a chip due to CIS I'm wondering if the intake side compared to the stock box/stock filter is REALLY worth doing.
Thanks

 

This is very good information. Thanks guys.

 

Contact Steve Wong at 911 Chips.com...he's very knowledgable and willing to help with answers and suggestions. His chips and help is very respected on this and the Pelican board. Do a search on both boards for "exhaust upgrades" and you will find much info. I'm currently in the middle of my upgrade and will post results in a couple weeks...stock '86 Carrera 3.2 with Fabspeed cat bypass, M&K sport muffler, and 911 chip.

 

or do flipped flange 993 exhaust and a single out M & K sport muffler coupled with a Steve Wong chip. If I had a stock Carrera, that's the route I would go now.

 

A performance chip is a performance chip is a performance chip!

They all do basically the same thing, i.e. just advance ("push") the timing beyond
what Porsche/Bosch considered acceptable for various engine loads, temps,
and fuel grades. The custom performance chips are even more hyperbole (B.S.),
since without MAJOR engine mods AND a setup on a dyno, it's a real marketing
gimmick.

Most who recommend performance chips fail to understand the problematic issues,
e.g. the 911 single plug position in the combustion chamber and the propensity
for detonation with excessive timing advances beyond 35-38 degrees. Most chips
advance into the low 40 degree range and some even as high as 45-50 degrees.

You really never know, as the many who have installed them, what you've
really done to your engine until it's too late. Read the Rennlist threads and
especially this one:

https://rennlist.com/forums/911-forum/269781-diagnostic-help-broken-rings.html

 

Ditto on what Jack Olson recommended. My custom chip just arrived for my 3.4 rebuild and will get to the dyno as soon as I can get the break-in done. Do a search on "performance chip" here and at Pelican. Hours of great entertainment.

 

I have a set of used headers if you want to PM me.

 

Hey David,

Fugghetabout the intake. From what I've read over the years, there's no real/quantifiable HP improvement in changing the air-intake system. Improvement in sound/intake roar, yes. HP gains, nyet. As Jack said, the engine fan already does an excellent job of pulling in cool air.

Edward

 

Being new to this forum and working through my list of projects for my '86 Carrera 3.2, the reply by Loren got my attention. I sensed that there might be some history behind his statements, so I did some searching...interesting to say the least.

Since I just bought a chip from Steve Wong last week I sent him an email and included the posting from Loren. Obviously there is history...more like a can of worms! Here is Steve's response to me this morning:

Hi Gary,

Ignore Loren, he just a jealous fool. There are hundreds and hundreds of 3.2s around the world running my chips, and I've never heard of a problem. If you really want my response, look about halfway down this link for my screenname, and ask him on that Rennlist thread - about him about his selling performance chips for the 911s - you'll either get no response, or find him trying to weasle his way out of the question. Don't let him get away with it, then link a copy of this thread in the Rennlist thread and ask him about it. Expect days of entertainment.

http://forums.pelicanparts.com/showt...0&pagenumber=2

Regards,
Steve

Bottom line, I'm sticking with Steve and his 911 Chip. I'm not building a track car, only looking for a boost in performance and fun driving my Carrera. I'm basing my decision on Steve's reputation and the feedback from fellow owners.

 

"Since I just bought a chip" - gpm414 -

What do you expect the response to be when you ask a performance vendor about
what the chip really does and its effects?

"Yes, the chip we sold has the timing advanced to such a point that you will have
pinging/detonation problems under various loads, temps & fuel grades. Also, the
use of our chip could result in damage to your engine."

The naivety of some and the "herd mentality" are incredible.
Some just can't understand technical issues & facts and rely on others with less
or equal knowledge to support their decisions.

Interesting isn't it, that the counterpoint never relates to the technical aspects
or discussions, but just hearsay B.S. and other hyperbole totally unrelated technically
to support a counterpoint & discredit the "message".

Other Rennlist forums (read the many Rennlist threads), other than this 911 forum,
can discuss this issue intelligently, but why not here? At least here on Rennlist
most maintain much higher standards when posting versus the "other" forum/BBS.