data search - cost to get 500rwhp
#47
The Impaler
Rennlist Member
Rennlist Member
#48
#49
The Impaler
Rennlist Member
Rennlist Member
#50
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Tim, you are dead on the money with that one.
Well now, since you clarified your usage you have many options. You should do a search on someone called Special Tool and see what he did with a 2.5L. Actually, below is a link to when he made that 600+ RWHP, and he gives you his exact build as well. Good luck with the project.
https://rennlist.com/forums/944-turb...whp-951-a.html
Well now, since you clarified your usage you have many options. You should do a search on someone called Special Tool and see what he did with a 2.5L. Actually, below is a link to when he made that 600+ RWHP, and he gives you his exact build as well. Good luck with the project.
https://rennlist.com/forums/944-turb...whp-951-a.html
#51
Really just looking as to whats involved in putting in a 3.0L crank...that increases the stroke right, so does that have anything else it needs besides the rods? I'm rebuilding my engine, I mean if its that simple I'd do it...but nothing is ever that simple!
Seems like thats a heck of a lot simpler than overboreing my cylinders, or am I mistaken here?
Seems like thats a heck of a lot simpler than overboreing my cylinders, or am I mistaken here?
#52
The Impaler
Rennlist Member
Rennlist Member
Really just looking as to whats involved in putting in a 3.0L crank...that increases the stroke right, so does that have anything else it needs besides the rods? I'm rebuilding my engine, I mean if its that simple I'd do it...but nothing is ever that simple!
Seems like thats a heck of a lot simpler than overboreing my cylinders, or am I mistaken here?
Seems like thats a heck of a lot simpler than overboreing my cylinders, or am I mistaken here?
Personally I would recommend going overbore because then you have the added benefit of strong steel cylinders. They are tougher and If you get some kind of damage to them, you can easily hone them.
#53
The cost is about the same whether you go stroker/overbore. The piston pin height is different for the 3.0L as well.
Personally I would recommend going overbore because then you have the added benefit of strong steel cylinders. They are tougher and If you get some kind of damage to them, you can easily hone them.
Personally I would recommend going overbore because then you have the added benefit of strong steel cylinders. They are tougher and If you get some kind of damage to them, you can easily hone them.
#54
Drifting
Sleeving our blocks is kinda controversial, in a way. Some say dont do it, some say do. For a DD, I personally wouldnt sleeve. Thats just my $.02 tho.
#55
The Impaler
Rennlist Member
Rennlist Member
You have more piston options, and they are very very strong.
#56
Drifting
#57
The Impaler
Rennlist Member
Rennlist Member
#58
Drifting
You said it, the different metals expand, and contract at different rates. Some have told me it works, some say the alloy our block is made of doesnt take it so well. The cylinders walls in the 2.5 are also said to be "thin", and the block has a tendency to "twist". Most of the the engines prepared for track use, expect to be rebuilt often, as stated earlier in the thread. Street cars the opposite. If I ever find a good deal on a tub locally, and find some space to fit it, Ive been thinking about building a trackrat. If I did that id just bore one of my 2.5 blocks to hell and sleeve it. I expect to be constantly building a maxed race engine. Even easier to rebuild all the time with sleeves. Many piston options, and can change the sleeves out. Like I said its not something that everyone agrees on. I could see it being a possible issue with our Al alloys.
#59
The Impaler
Rennlist Member
Rennlist Member
You said it, the different metals expand, and contract at different rates. Some have told me it works, some say the alloy our block is made of doesnt take it so well. The cylinders walls in the 2.5 are also said to be "thin", and the block has a tendency to "twist". Most of the the engines prepared for track use, expect to be rebuilt often, as stated earlier in the thread. Street cars the opposite. If I ever find a good deal on a tub locally, and find some space to fit it, Ive been thinking about building a trackrat. If I did that id just bore one of my 2.5 blocks to hell and sleeve it. I expect to be constantly building a maxed race engine. Even easier to rebuild all the time with sleeves. Many piston options, and can change the sleeves out. Like I said its not something that everyone agrees on. I could see it being a possible issue with our Al alloys.
#60
Drifting
As you said yourself, its "probably no big deal" I tend to have problems with maybes, and probablies. Any degree of doubt is usually enough for me to go the safer route. I dont care for grey areas when it comes to my 951. Im also sure there are a few around who could build such a motor, and would last. Im not saying every time you sleeve it it will fail, just that theoretically it is possible. My philosophy is WWPD, what would porsche do?