Messages

1

General Buick Tech / Re: Is a TT6.1 worth the extra money of the 5.7?

« on: January 09 2017, 02:53:16 PM »

It is funny timing I receiced an email this morning from a relative who said his plow truck was DIS.  dead in snow.  Choke stuck closed. 

I have a lot of friends up north that will disagree and vote for the FI.  The FI will set the needed AF and the idle speed requited to keep it running and the car will run smoother from the very start.

My own experience from the North Slope to the southern tip of South America, tells me that I would much rather have FI in the cold or in the hot.  You are welcome to come up and set the choke on my Challenger so that it does not take five minutes to get enough heat in the engine to over come a cold morning lol

2

General Buick Tech / Re: Is a TT6.1 worth the extra money of the 5.7?

« on: January 09 2017, 01:17:19 AM »

I don't buy the cold start stuff, having grew up, up north a carb with a working choke starts faster/better than a fuel injection system.  You can have injectors dump as much gas as you like but still can't compare with that choke blade blocking off the air coming in.  Especially when dealing with weak cold battery. 

Here in Texas it doesn't matter.

^hence my need for a plain ole chip.  I'm smart enough to tune an aftermarket chip but I just don't give a fuck.   

I'm approximately 100% sure I'll never tune my GN to the Nth degree.  Close is good enough for me.


I have been thinking about making the slant 6 in my '72 Dodge van fuel injected though.  Can't decide between 80's shitbox FI or soldering up a megasquirt.

...but that's a different story.   

I have been thinking the same for my Challenger...M eqaSquirt or a FITech system are my two leading candidates. Price is right on both and would improve gas mileage and cold start....   After having FI cars, cold natured carbed beasts are a pain in the neck.

3

General Buick Tech / Re: exhaust pressure forcing opening waste gate stock actuator

« on: July 09 2016, 04:18:41 PM »

Thanks I will test the opening pressure on the the grainger valve first and go from there.  I have more than 1/8" of tension on the waste gate rod. 

4

General Buick Tech / exhaust pressure forcing opening waste gate stock actuator

« on: July 09 2016, 12:32:19 PM »

Has any experienced this issue.  I have been experimenting with a new setup and using a grainger valve (manual boost controller) I built.    I have the factory waste gate with the typical cut and threaded rod.  When I installed the manual boost controller I also loosened the tension on the waste gate rod.  I set it to where i only need to tension the spring the diameter of the hole to hook the rod onto the flapper arm.  I can't get higher than ~20 psi even when I bottom out my manual boost controller.  I was able to make adjustments and get a response until I got up near 20 psi then no more. 

I am thinking the exhaust pressure may be forcing the waste gate flapper open.  I had never ran this loose on the waste gate adjustment before.  I am going to try to increase the tension on the actuator and see what the result is.  Also I will pull the grainger valve off the car and test my last adjustment with air compressor.  It is going to rain today so I don't know how much road testing I will be able to do.

Any one experienced this before?  Any other ideas or something I am missing that is not letting me exceed 20 psi?

5

General Buick Tech / Re: Roller cam options

« on: April 21 2016, 01:13:21 PM »

I updated the original post with everyone's replies.  Now I have a good base to start searching for info on.  I will keep updating the original post as I gather more info.

6

General Buick Tech / Re: Roller cam options

« on: April 21 2016, 01:04:06 PM »

Don't get mad if the car is not any faster than a guy with a flat tappet cam.  He just has a better turbo, heads, or knows how to tune better than you! 

Thanks Steve.  The reason for roller is to replace a worn stock flat tappet not necessarily a performance increase.  I would rather not risk  a new flat tappet in these engines, and the zinc content in modern oil, internets myths etc etc.   I save those experiments for chevys and fords.

7

General Buick Tech / Re: Roller cam options

« on: April 21 2016, 01:00:52 PM »

If you drill and tap for a thrust button, you'll hit water.

Why/where would I drill and tap for a thrust button?  Drill into front cover? 

8

General Buick Tech / Roller cam options

« on: April 20 2016, 02:42:26 PM »

I have done some searching on tb but can't find current info.  Maybe we can put together good information and add it to the knowledge base below.

What are my options for going to a roller cam?   

From what I can tell their are two styles of cam retention. 

Ductile Roller Cam - Uses roller button and shim between front cover to get correct clearance.
 
Billet Roller - Uses cam retainer plate.  Needs oil mod to get more oil to lube distributor gear.  Needs different material gear on distributor/cam sensor.


Then their is the choice of lifters; morels, comp and others? 

Is the above correct? 

Do I need to be concerned about distributor gear/cam sensor gear material like on a chevy or ford?


Swap to roller cam will also require:
New Valve springs - correct spring rate
Correct length push rods - measure during assembly
Possibly Upgrade to valve train; HD rocker shafts, upgraded rocker shaft supports

9

A/C, Heating and Cooling / Re: Regal Radiator

« on: February 02 2016, 12:10:19 PM »

I did not purchase but I exchanged emails with OSC.  And they confirmed that their radiator had both engine oil and trans coolers, and the correct style.  I found them on rockauto.  They have some interesting youtube videos about their products.

10

General Auto Tech / Re: wheel bearing swap on 2500hd

« on: February 02 2016, 12:00:11 PM »

Wheel bearing on a truck.



how to screenshot on windows 7

So our 2003 2500hd developed a squeak or groan depending on who was driving. I hit a nasty pot hole two nights in a row on the pass side. I'm not sure this caused the fail as the truck has over 150k miles but it did make noise and watching it in traffic from our other vehicles I noticed the wheel moved around and driving it turning it made noise and had a funny loose feel to the steering wheel. So we got on rock auto dot com and ordered up a moog replacement piece which came with the wheel sensor which was nice.

Got a break in the rain and we were both free so we did the swap tonight. I think it turned out well bit he took it around the block so I didn't drive it yet.
Next on the agenda is getting the gauges worked over as they all quit working. We are using a phone app as a speedometer . Oh well it still runs and gets us from a to b.

The gauges are just the stepper motors are bad.  You can buy the upgrade replacements on ebay for cheap.  Have to solder them in.  Common problem.  I had to do to my 2500hd when it was 5 years old.

11

General Buick Tech / Re: Priming oil pump thru the cam sensor hole.

« on: October 30 2015, 01:56:47 PM »

I did mine on the stand, and forgot about the pressure switch.  When I shot oil onto the man door going into the house I knew I had the correct direction. Then I had to find a pipe plug.

12

General Buick Tech / pressure drop on pte stock location intercooler

« on: September 21 2015, 05:42:27 PM »

Has anyone measured the pressure drop on the PTE SLI?  I did some searching but didn't find the answer.

I was reading Steve's combination article, at the time Bob Dick didn't test the PTE SLI.  It probably wasn't being produced at that time.
http://www.vortexbuicks-etc.com/combination.htm

13

General Buick Tech / Re: rebuild TA49

« on: September 06 2015, 12:41:29 PM »

I got it.  It broke the shaft off in the nut.   I will start a new thread about new turbo purchased options.

14

General Buick Tech / rebuild TA49

« on: September 06 2015, 12:22:35 PM »

My TA 49 is leaking oil and has shaft play.  There is no rubbing of the wheels onto the housings.   I can't get the nut loose on the compressor side, any tips on disassembly?  I tried clamping in a vice but it slips. 

Thanks

15

General Buick Tech / Re: Stock TR-What MPH In The 1/4?

« on: August 18 2015, 01:46:16 PM »

I recently found another radiator option.

OSC 683

I exchanged emails with them, and they claim it is a drop in replacement for the TR, old diesel cars etc, it has the engine oil cooler, and trans cooler.   It is aluminum with plastic end tanks, but the price is no better than allradco. 

http://www.rockauto.com/catalog/moreinfo.php?pk=3759960&cc=1020957&jnid=456&jpid=4

•Premium grade tubes, fins, headers, tanks, and other components are used to make OSC radiators more durable
• Every unit is 100% pressure and fit tested
• All necessary fittings or hardware are included in each unit for an easy install
• The minimum benchmark when designing a new radiator is always the OE standard or an “approved” aftermarket design
•OSC uses double corrugated “Brown Box” to better protect radiator fins during shipping. Most of the units utilize “Blown Foam” technology to further protect the unit from shipping damage.

Height 26 1/4"
Width 17"
Depth 1 5/8"
Inlet 1 5/16"
Outlet 1 9/16"
Trans Oil Cooler 8 1/2" 3 PLT
Engine Oil Cooler 8 1/2" 2 PLT
Top Header 2 3/4" x 18 5/8"
Bottom Header 2 3/4" x 18 5/8"