4.1 stroke guys... come on in....
Thread Starter
TECH Fanatic
Joined: Mar 2003
Posts: 1,946
Likes: 1
4.1 stroke guys... come on in.... I am probably going to get beat-down for asking, but....
... what are the latest opinions on 4.1 stroke oil use and engine longevity???
(let the beatings begin...)
... what are the latest opinions on 4.1 stroke oil use and engine longevity???
(let the beatings begin...) 
Originally Posted by SideStep
I am probably going to get beat-down for asking, but....
... what are the latest opinions on 4.1 stroke oil use and engine longevity???
(let the beatings begin...)
... what are the latest opinions on 4.1 stroke oil use and engine longevity???
(let the beatings begin...)
SDPC has strong oppinions on this and they ought to know. Oil has changed recently and short skirt pistons are super sensitive.
I can send you what they sent me (.pdf) with latest stroker if you send me an email.
I can send you what they sent me (.pdf) with latest stroker if you send me an email.
Last edited by See5; Mar 6, 2007 at 01:07 PM.
Originally Posted by See5
SDPC has strong oppinions on this and they ought to know. I can send you what they sent me with latest stroker-
I have built more than a dozen 4.100 and 4.125 stroke engines and have never seen any problem associated with these strokes. Many are on the stock sleeve. My current road race engine is an L92 block and heads w/ 4.100 bore and 4.100 stroke (433 cid) on the stock sleeve and puts 550 hp to the wheels... Go for it...
Shirl Dickey
SD Racing
Home of the 'Big Dickey Stroker'
Shirl Dickey
SD Racing
Home of the 'Big Dickey Stroker'
Originally Posted by MrEracer
I have built more than a dozen 4.100 and 4.125 stroke engines and have never seen any problem associated with these strokes. Many are on the stock sleeve. My current road race engine is an L92 block and heads w/ 4.100 bore and 4.100 stroke (433 cid) on the stock sleeve and puts 550 hp to the wheels... Go for it...
Shirl Dickey
SD Racing
Home of the 'Big Dickey Stroker'
Shirl Dickey
SD Racing
Home of the 'Big Dickey Stroker'
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Verdad Gallardo Thread Starter
TECH Fanatic
Joined: Mar 2003
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Originally Posted by Randy WS6
I have a 4.100"stroke Eagle crank in my LS2 4.030"bore, 418cid. Im thinking of going a head and getting the L92 block and going bigger my self. I love the 418 it has super torque.
Originally Posted by SideStep
... what are the latest opinions on 4.1 stroke oil use and engine longevity???[/B]
Thread Starter
TECH Fanatic
Joined: Mar 2003
Posts: 1,946
Likes: 1
Originally Posted by MrEracer
I have built more than a dozen 4.100 and 4.125 stroke engines and have never seen any problem associated with these strokes. Many are on the stock sleeve. My current road race engine is an L92 block and heads w/ 4.100 bore and 4.100 stroke (433 cid) on the stock sleeve and puts 550 hp to the wheels... Go for it...
Shirl Dickey
SD Racing
Home of the 'Big Dickey Stroker'
Shirl Dickey
SD Racing
Home of the 'Big Dickey Stroker'
I have done some snooping around the internet about SD Racing and I respect your reputation and what you do. I am really looking for an engine that can be driven 3-4 days a week (in DC traffic) with out costing me a small fortune in oil... or wears out quickly... I understand the nature of the beast and that some oil use is going to happen...
Any input is appreciated....
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
I do these as well and it is all about the ring package and skirt. You can't do one if you are going to be focused on Power Adder usage. I am making pistons for the L92 already like this as I want the extra engine size under those big heads.
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
The reason not as many sponsors do them is that there are no good shelf solutions and the rings required are also more money. There's lots of stuff in the 4.00-4.060 but the 4.070-4.080 stuff is harder to come by. if you aren't aware of the cylinder length and the pistons and ring pack design then you WILL have problems. If you do it right they run fine with no issues.
I have one that 3.904" bore with a eagle 4.1" stroke that is daily driven. No oil comsumption issues. Makes some awesome power. I havent sprayed it yet but it will have a 200-250shot on it soon enough 
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
Originally Posted by Mr.MartyStone
Erik, could you still spray 100-150 shot from time to time or are you asking for problems?
Marty
Marty
WIth conservative tuning you can run more NOS than most people would think but that isn't something most people seem to be able to do.
I have had a 3.9 bore by 4.125 stroke built by Texas Speed for several years and it is running fine. If you race it hard it will consume some oil, but daily driving it uses hardly any. I was going to build a big stroker but this motor is going so strong still we are installing a D1SC Procharger right now. I am hoping to see close to 675 to 700 rwhp with this motor.
