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Search took 0.14 seconds. Search: Posts Made By: 2.7RACER
Forum: Porsche 911 Technical Forum 07-13-2017, 09:31 PM
Replies: 10
Views: 882
Posted By 2.7RACER
As a long time resident of Albuquerque at 5000...

As a long time resident of Albuquerque at 5000 feet or greater elevation we have been dealing with the lack of oxygen as compared to sea level. The rule is 3% loss for every thousand feet above sea...
Forum: Off Topic Discussions 03-04-2017, 05:28 PM
Replies: 18
Views: 2,461
Posted By 2.7RACER
I was convinced the rear wheel bearings needed to...

I was convinced the rear wheel bearings needed to be replaced from the sound coming from the rear. Inspection with the 911 up on a lift showed the bearings were tight and smooth. I replaced the...
Forum: Porsche 911 Technical Forum 09-21-2016, 11:08 AM
Replies: 36
Views: 2,403
Posted By 2.7RACER
I recently had my '85 refreshed by a local shop...

I recently had my '85 refreshed by a local shop with an A plus reputation. They replaced all of the external oil lines and the fuel line that runs across the top of the engine. This along with many...
Forum: Porsche 911 Technical Forum 09-07-2016, 08:53 PM
Replies: 36
Views: 2,421
Posted By 2.7RACER
I would not expect a 25 or 30 thousands feeler to...

I would not expect a 25 or 30 thousands feeler to fit into the backside.
The proper size feeler is 2-1/2 thou go or 3 thou no go.
Forum: Porsche 911 Technical Forum 08-14-2008, 03:10 PM
Replies: 6
Views: 634
Posted By 2.7RACER
Brent, I'm running solex cams in my 2.7L with...

Brent,
I'm running solex cams in my 2.7L with 9.5 JE's and 40IDA's.
The solex cams have better low end torque than "S" cams.
I regularly run down 3.0's and 3.2's at the track.
"S" cams work...
Forum: Porsche 911 Technical Forum 08-14-2008, 01:25 PM
Replies: 32
Views: 3,309
Posted By 2.7RACER
+1, What Sherwood said.

+1, What Sherwood said.
Forum: Porsche 911 Technical Forum 08-14-2008, 07:56 AM
Replies: 32
Views: 3,309
Posted By 2.7RACER
The main jets don't begin to flow until you reach...

The main jets don't begin to flow until you reach 2500/3000 rpm's.
So no they will not help or harm low rpm performance.
At rpm's under 2500/3000 all the fuel is supplied from the idle jets to...
Forum: Porsche 911 Technical Forum 08-13-2008, 07:37 PM
Replies: 32
Views: 3,309
Posted By 2.7RACER
125 main jets are too small for a 3.0 liter. ...

125 main jets are too small for a 3.0 liter.
Unless you are running at 10,000 feet. Maybe not even there.
If you are at sea level, try 150 mains.
I'm at 5,500 ft with a hot 2.7 running 145's. ...
Forum: 911 Engine Rebuilding Forum 08-10-2008, 03:09 PM
Replies: 6
Views: 964
Posted By 2.7RACER
Way to go!

Way to go!
Forum: Porsche 911 Technical Forum 08-10-2008, 03:02 PM
Replies: 10
Views: 1,009
Posted By 2.7RACER
I went thru this earlier this year. #6 was my...

I went thru this earlier this year. #6 was my problem. Floats ok, idle jets clear, spark ok, change plugs no difference.
In desperation, I changed the idle jet O-rings and the idle fuel mixture...
Forum: 911 Engine Rebuilding Forum 08-09-2008, 09:18 PM
Replies: 6
Views: 964
Posted By 2.7RACER
You may still be lean at rpm's from idle to 2500...

You may still be lean at rpm's from idle to 2500 rpms where the mains begin to take over.
By going to 60 idle jets you'll need to turn the idle fuel mixture screws in from the present 3 turns out...
Forum: 911 Engine Rebuilding Forum 08-09-2008, 12:02 AM
Replies: 6
Views: 964
Posted By 2.7RACER
Are you saying the idle is set up with the air...

Are you saying the idle is set up with the air correction screws fully closed?
Turned in all the way?

Approximately how many turns out are the idle fuel mixture screws set?

Where are the idle...
Forum: Porsche 911 Technical Forum 07-24-2008, 06:55 PM
Replies: 21
Views: 2,046
Posted By 2.7RACER
One distinct advantage of an older car is smog...

One distinct advantage of an older car is smog regulations.
Can't speak for Beautiful BC, but in many US states older cars are exempt from smog testing and some of the BS that goes with it.
Forum: Porsche 911 Technical Forum 07-24-2008, 06:30 AM
Replies: 14
Views: 3,026
Posted By 2.7RACER
Trekkor, I'm running a 2.7L with Solex cams...

Trekkor,
I'm running a 2.7L with Solex cams and Webers at 5,000 ft elevation.
So what I run doesn't work well in a stock 2.7L at sea level.
At 5,000 ft. my engine is happy with 34mm venturi's,...
Forum: Off Topic Discussions 07-22-2008, 01:35 PM
Replies: 20
Views: 1,390
Posted By 2.7RACER
Hi Steve, In your first post you...

Hi Steve,

In your first post you stated........
"I would like to buy my first handgun. I really just want to have one in the house for protection."

In your most recent post you...
Forum: Porsche 911 Technical Forum 07-19-2008, 06:52 PM
Replies: 18
Views: 1,482
Posted By 2.7RACER
Joe, Adding a sway bar to the rear will help...

Joe,
Adding a sway bar to the rear will help the front tire lift in the corners. Unfortunately it will also tend to make the rear a bit stiffer and more tail happy.

Reducing rear tire pressure,...
Forum: Porsche 911 Technical Forum 07-17-2008, 11:18 AM
Replies: 12
Views: 1,887
Posted By 2.7RACER
Webers and PMO's like 3.5 psi. PMO has a...

Webers and PMO's like 3.5 psi.
PMO has a simple regulator system with gauge I recommend.
It works well with the stock Porsche high pressure fuel pump used with all Porsche fuel injection systems.
Forum: Porsche 911 Technical Forum 07-17-2008, 09:12 AM
Replies: 12
Views: 1,887
Posted By 2.7RACER
For a 2.7 with E cams, 32mm venturi for street...

For a 2.7 with E cams, 32mm venturi for street use, 34mm for the track.
At sea level 135/145 main jets, 55 idles, 180 air correction, F3 emulsions.

I'm at 5500 feet. The air is thin, so I use...
Forum: Porsche 911 Technical Forum 07-17-2008, 08:44 AM
Replies: 12
Views: 1,887
Posted By 2.7RACER
doc18015, The jets are sized metrically. ...

doc18015,
The jets are sized metrically.
That is a 50 idle jet is 0.50mm dia.
A 60 idle is 0.60mm.
To convert to inches, 1.0mm equals 39.37 thousandths. Most folks round it off to 40 Thou. ...
Forum: 911 Engine Rebuilding Forum 07-16-2008, 07:18 PM
Replies: 8
Views: 1,539
Posted By 2.7RACER
Somehow, I got the mistaken impression you were...

Somehow, I got the mistaken impression you were setting the cams more retarded.
To answer your first question, yes, remove the sprocket after releasing the tension.
Then jump the chain.
Since...
Forum: 911 Engine Rebuilding Forum 07-16-2008, 12:25 PM
Replies: 8
Views: 1,539
Posted By 2.7RACER
When the cam timing fails to drop into the mid...

When the cam timing fails to drop into the mid point of the specified range, Simply pull the pin, slip the sprocket off the cam and rotate the cam sprocket 5 teeth in either direction.
This will...
Forum: Porsche 911 Technical Forum 07-15-2008, 08:09 PM
Replies: 93
Views: 9,449
Posted By 2.7RACER
Shane and Dave, Excellent work. Hands across...

Shane and Dave,
Excellent work. Hands across the Pacific.
I didn't realize that turning 240 degrees worked out to 1,2,3,4,5,6. Easy to remember.
Forum: Porsche 911 Technical Forum 07-14-2008, 06:27 PM
Replies: 10
Views: 756
Posted By 2.7RACER
I would put it back together and drive it for a...

I would put it back together and drive it for a day or so, then retest.
If number one continues to test low compared to the other cylinders, then do a leakdown to determine where the compressed air...
Forum: Porsche 911 Technical Forum 07-14-2008, 08:59 AM
Replies: 93
Views: 9,449
Posted By 2.7RACER
snbush67, Nice job. I agree the 120 mark...

snbush67,
Nice job. I agree the 120 mark belongs on the other side, as it is the next stop.
I would suggest you indicate "rotate CW 120 deg. check/adjust #6"......
Great thinking.
Forum: Porsche 911 Technical Forum 07-12-2008, 07:53 PM
Replies: 21
Views: 1,842
Posted By 2.7RACER
Thanks for being a helpful constructive part of...

Thanks for being a helpful constructive part of this forum.
It goes without saying we'll miss you and of course we look forward to your return.
Until then may the breeze of life be at your back.
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