Messages

16

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 06 2018, 10:36:46 PM »

Well, if that is the case, I don't have a suggestion. Maybe the art Carr fellow at California performance transmissions.

You could always assemble one yourself. I hear Dave Husek has an excellent kit. And has a real good offering in a lock up converter.

I have talked with Dave in the past. Nice guy! I'd send him my trans if we weren't so far apart.

17

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 06 2018, 06:12:36 PM »

Southwest what? 

Southwest USA.

18

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 05 2018, 11:18:19 PM »

Who's the best trans builder in the Southwest?

19

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 04 2018, 10:47:17 PM »

Mine just turned 136K.

Third owner, adult owned, mostly original. I've improved fuel supply (Hot-wire/Walbro 255/Adj.FPR), cooling, braking & other supporting systems. Engine internals untouched. Trans is original with dealer installed upgrades during the first few years. Scanmaster, TT 91-93 octane street chip.

PS. P/O replaced injectors. Make & size unknown at this time.

20

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 04 2018, 04:57:28 PM »

Bison has shoved several minutes of 9 second power through the stock short block in his blue car. I run 7 flat all day long in my own car with the stock short block. Durability depends on ones tuning ability.

How many miles are on these engines?

21

General Auto Tech / Re: Latest Wood Project

« on: January 03 2018, 10:52:11 PM »

Station Wagons are cool! 


I wanted to buy one about 12 years ago & couldn't find one.


Since then I've seen a few G-Body wagons, but that's about it.

22

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 03 2018, 06:49:18 PM »

Let's remove operator error from the equation for now.

23

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 03 2018, 01:24:56 PM »

I'd like to avoid using a girdle. Looks like it would add more complexity & costs than I really need.


I have seen a picture of an engine that had the mains strapped together before, but no information on the straps. Seems simple enough. Would require a certain type of material, perfectly flat surfaces & longer studs I suspect. Don't know what the best material would be. Aircraft grade aluminum? Steel?


What are the typical weaknesses or failures on the turbo Buick V6?


How much MAP is typical? 24-30 psi?

24

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 03 2018, 10:04:24 AM »

One or more of those links show torque plates in place during the pouring & curing of the block filler. Perform the fill prior to the machining. I suspect that Buick V6 torque plates may not be very common at many machine shops.


Thought I read on one of the product descriptions that the material is not any heavier than the coolant it displaces.


Obviously the block filler should mimic the blocks thermal characteristic s (expansion/contraction) as much as possible.


Anyone know how block fill would affect the cooling of a street driven V6?

25

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 02 2018, 10:35:30 PM »

Anyone have any thoughts on using some block filler?

http://www.hardblok.com

http://www.enginebuildermag.com/2014/07/cracking-block-fillers/

http://www.competitionproducts.com/Rokblock-Professional-Engine-Block-Filler-25-lbs/productinfo/ROK/#.WkxXWBTLQfE

http://garage.grumpysperformance.com/index.php?threads/block-fillers.11033/

26

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 01 2018, 09:05:08 PM »

Why not just go to a v8 with a turbo?

Yeah... But then the car loses its identity. Might as well sell it & buy a plain Jane G-Body to use.


I do have a nice set of aluminum heads.

27

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 01 2018, 05:56:54 PM »

Interesting article on core shift & sonic testing. I read something like that before years ago, but not as informative.

The author mentioned using grout or block filler towards the end of the article. Any benefit in using block filler for the Turbo Buick V6?

Wanting to build a reliable street engine capable of 10's. The Buick Regal is a bit heavy & the displacement is a bit small. Figured increasing the displacement would be beneficial. Plus it looks like building a 4.1 isn't much more expensive than a 3.8. I would like to remove the original engine & moth-ball it.

PS. I've talked with Nick some. It would be nice to deliver my car & write a check, but I can't do that. Will have to build it myself.

28

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 01 2018, 04:36:06 PM »

TA Performance has some nice stuff. Out of my price range though.


Familiar with the SBC 400 core shift.

29

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 01 2018, 04:21:15 PM »

I cracked two separate cylinders and went into the water jackets in a .030 over 109. I'd want as much 'meat' between the cylinder wall and water jacket as possible. I currently run a standard bore 109...for good reason.

Are you telling me that the 3.8L 109 block has thicker cylinder walls than the 4.1L blocks?


Is the 3.8L block more rigid?


What weaknesses does the 4.1L block have?

30

General Buick Tech / Re: Thoughts On 4.1 Liter Based Builds?

« on: January 01 2018, 04:18:14 PM »

How about the imported forged stroker cranks?


Which make & model has the best quality steel & tolerances?


I think I would prefer to convert to internal balance, so would require a suitable flex plate & damper also?


I've been reading up on connecting rods & stroker clearance issues. Sounds like Molnar has a rod that provides more clearance than others. What happens when a longer than OEM stock rod is used?


All advice is appreciated. Thanks.