Help me decide... Would you, button up the 2.0 or go 2056? |
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Help me decide... Would you, button up the 2.0 or go 2056? |
nebreitling |
Feb 14 2005, 12:41 PM
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#1
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Member Emeritus Group: Members Posts: 3,314 Joined: 26-March 03 From: San Francisco Member No.: 478 |
so, have a built 2.0 with VERY few miles on it (seriously, you could eat off the insides of this thing. except it would taste like oil. but you get the idea). spark plug holes were giving me grief, finally decided to just pull the heads and send them to the machine shop to fix *for real*.
so i've got the heads off and i'm looking at these beautiful new Mahle 94's and thinking, "as long as i've got the heads off, why don't i just bore the cylinders". what do i need to do to build the 2056? -bore cylinders -lap cylinders/heads -cc the heads -recalculate deck height -slap back together i got zilch experience with the T4 engine, but does this sound about right? (IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif) n |
JoeSharp |
Feb 14 2005, 12:51 PM
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#2
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In Irvine, Ca. May 15-18 Group: Members Posts: 3,947 Joined: 9-July 03 From: DeLand, Florida Member No.: 898 Region Association: South East States |
Yes.
Joe |
Tom Perso |
Feb 14 2005, 01:00 PM
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#3
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Crazy from the Cold... Group: Members Posts: 647 Joined: 8-August 03 From: Kalamazoo, MI Member No.: 1,003 |
What cam are you running?
Tom |
nebreitling |
Feb 14 2005, 01:16 PM
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#4
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Member Emeritus Group: Members Posts: 3,314 Joined: 26-March 03 From: San Francisco Member No.: 478 |
An Elgin cam, one of either 2 models -- PO didn't know:
duration/lift .280/.333 .288/.333 ------ Intake rocker arm ratio = 1.3:1 Exhaust " " " = 1.25:1 ---- this cam *wants* a 9.5:1 compression ratio, and was originally designed for increased bore |
Mueller |
Feb 14 2005, 01:16 PM
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#5
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
don't forget...re-size the rings
what is the additional cost? I'm guessing close to $300 min., just for 56cc???? I'd run the piss out of that engine, when it's time for a rebuild, then have the cylinders bored out to 96mm |
mharrison |
Feb 14 2005, 01:45 PM
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#6
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Why do I bother???? Group: Members Posts: 633 Joined: 8-September 03 From: Madison, MS Member No.: 1,123 |
I'd button it back up and enjoy driving while you build the heavy breather.....
my 2 cents..... Free of charge... |
mike_the_man |
Feb 14 2005, 01:45 PM
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#7
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I like stuff! Group: Members Posts: 1,338 Joined: 11-June 03 From: Regina, Saskatchewan, Canada Member No.: 809 |
Come on, you know you wanna go bigger! I have nothing really useful to add, but I do like to spend other peoples money! (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
What sort of hp gain would you be looking at? Probably pretty minor. Do you think it would be worth it? |
Demick |
Feb 14 2005, 01:47 PM
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#8
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Ernie made me do it! Group: Benefactors Posts: 2,312 Joined: 6-February 03 From: Pleasanton, CA Member No.: 257 |
That could take 10-20 years before it's in need of a rebuild. So if you want to do it, then go for it. Not difficult while it's apart. But you forgot to mention new pistons and rings. You might want to look into getting a 96mm p&c kit from Jake Raby or having him bore your cylinders and match them with pistons and rings. Demick |
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Tom Perso |
Feb 14 2005, 01:48 PM
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#9
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Crazy from the Cold... Group: Members Posts: 647 Joined: 8-August 03 From: Kalamazoo, MI Member No.: 1,003 |
Well, if you're in the 9.5:1 neighborhood, leave it as is and like the others said "Run the piss out of it"
If you're lower, get the bigger pistons - that'll help bump up the compression. "Bump it up to hear it thump" *THEN* run the piss out of it. No carbon buildup around here! Later, Tom |
scooter311 |
Feb 14 2005, 01:49 PM
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#10
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Member Group: Members Posts: 231 Joined: 22-October 04 From: Upstate NY Member No.: 2,986 |
Put that monster back together and start tearing up the streets as soon as possible. Do not delay do it NOW NOW NOW NOW. Not driving your car sucks.
In the meantime however, you'll have an opportunity to patiently search for the goodies you'll need to buid it later on. Maybe you'll find a set of carbs, or a 78mm crank, etc etc that you can stash until the time is right. Like all the stuff I found AFTER I built my 2056. I even found a complete V6 conversion, including tranny, harness and exhaust for half of what I paid to build my T4. I puked. |
scruz914 |
Feb 14 2005, 02:20 PM
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#11
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Senior Member Group: Members Posts: 815 Joined: 26-February 04 From: Santa Cruz, CA Member No.: 1,724 |
Bolt it back up and drive it! Quickly, before the "while I'm in there" disease gets any stronger.
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nebreitling |
Feb 14 2005, 02:21 PM
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#12
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Member Emeritus Group: Members Posts: 3,314 Joined: 26-March 03 From: San Francisco Member No.: 478 |
yeah, obviously pistons and rings would be needed... KB's are pretty damn cheap....
BUT: i think this thread has pushed me in the right direction of just getting my engine back in the car ASAP!!! so i can freaking DRIVE!! (it's only been about 3 or 4 months...) |
scooter311 |
Feb 14 2005, 02:42 PM
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#13
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Member Group: Members Posts: 231 Joined: 22-October 04 From: Upstate NY Member No.: 2,986 |
(IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)
save your money, now you'll be needing tires (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) |
Mueller |
Feb 14 2005, 02:48 PM
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#14
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
"what if".....you damage something removing the 94mm pistons??? "what if".....something goes wrong while installing the new 96mm pistons??? you have a proven motor, no worries of rings not seating..etc, etc.... |
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Bleyseng |
Feb 14 2005, 02:54 PM
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#15
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Have them rebored to 96mm and install some pistons that raise the compression to atleast 8.5to1 and get 5to10hp doing it.
There are always what ifs in life but most of us don't make so many mistakes as you, Mike. haha just kidding. Geoff |
72914S |
Feb 14 2005, 03:09 PM
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#16
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love this shot Group: Members Posts: 1,290 Joined: 10-July 03 From: Pensacola,Fl. Member No.: 900 Region Association: South East States |
I pulled a good running 2.0 to put in my `72 and decided "while I was in there" 96 mm pistons,mild cam,HD valve springs,lightened fly wheel,etc.,etc.,etc!Don`t know about a stock 2.0 but I sure do like the way this runs. (IMG:http://www.914world.com/bbs2/html/emoticons/driving.gif)
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Brent |
Feb 14 2005, 03:12 PM
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#17
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Every month is Oktober Group: Members Posts: 1,360 Joined: 16-December 04 From: North San Jose Member No.: 3,291 Region Association: Northern California |
Buttoner up and drive er off.
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nebreitling |
Feb 14 2005, 03:23 PM
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#18
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Member Emeritus Group: Members Posts: 3,314 Joined: 26-March 03 From: San Francisco Member No.: 478 |
compression is already pretty damn hot. this is a race-built motor with only a few events on it. |
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DuckRyder |
Feb 14 2005, 04:15 PM
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#19
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Avatars Mode: OFF because of the recalcitrant few. Group: Benefactors Posts: 767 Joined: 8-January 03 From: Georgia Member No.: 110 |
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Jake Raby |
Feb 14 2005, 07:41 PM
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#20
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Button it up...
Then start a 2270 project. |
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