For the people who actually have built up their short block with bored out 3.8 liter darton sleeves, how is the engine?

Does it really feel 8% stronger at any rpm?

Does it rev up slower or about the same?

what have your experiences been so far?

 

+1, thinking about doing this myself.

 

I'll let you know when mine gets put in, it will be a stroker crank tho not bored out.

 

Bruce whens that bad boy going in? Cant wait to see the numbers.

 

What, Bruce? Awww, you and Rob have been holding out on me!!

 

Well, I have been breaking mine in for 2 days now...not going past 3500rpm's too much, but feels good so far, I'll keep you all posted when Sam gets here tomorrow and we break some records

 

Im not sure when, but my car will be a different animal by the time most of you see it, right now its getting the body panels put on, the new Stoptech 6pot 4pot should be in soon, and im tentative to drop my car off July 22nd or so tile Aug 2X for the engine job. We'll see tho. Some stuff came up.

 

still waiting on my 3.8L =) hopefully its done soon !! i miss my car~!

 

Anyone try the 4.15L Brian Crower stroker kit($4785)?

http://www.briancrower.com/makes/nissan/vq35de.shtml
http://www.briancrower.com/dl/06pricelist.pdf

 

it's coming..I'm cracking the whip

 

so any feedback yet?

 

improved cooling capacity (function of cooling channels in the darton sleeves)...larger bore, larger displacement, no downside...this is definately recommended if you are going with a high horsepower setup

 

the cooling is improved over stock? I thought if anything it'd be slightly worse because the coolant is restricted to the small holes instead of the entire cylinder?

I thought one of the downsides was there isn't much room for boring out the cylinder walls all that much more in case you needed to.

 

The cooling channels for the darton sleeves cover a greater surface area around the cylinder vs the larger cooling channels on the stock block...there is better coolant circulation/flow in the darton sleeved setup

on my standard block motor, temps would routinely exceed 205-210degrees on the dyno...while the darton sleeved setup never stepped up past 195!!!

 

Iam the second person to order this package so far. I ll let you know when it gets put together.. should be here within the next 2 weeks.

But I didnt pay 4700

 

may i ask where you got it and what you paid? PM me if you'd rather not post it ...

 

my question with a stroker kit has always been, if the vq is already pumping about 82 hp per liter at 3.5 and making 287, then with 4.15 would it make 340 at the crank?

 

My Darton sleeved block does appear to make more power, but its hard to say, since I changed the heads and made other modifications.

Having the 3.8L, my personal opinion, and nothing more, is that I would rather stay at 3.5L with the Darton's. 3.8L leaves precious little headgasket seating surface, and I'd feel more comforting running more boost, on a 3.5L Darton block, rather than a 3.8L darton block.

Hope that helps.

 

oh come on, don't be a pansy

 

Hes not a pansy hes being honest