Just for us to know,

Wiseco 8.8:1 pistons cost near half of jE and arias (around 675$)

Eagle rods cost half of pauters and carrillo or crower rods (around 550$)


Which type of F/I engine could we make with those? (power; torque; reliability)
Cheap is good or bad in this case?

 

Dont take my word for it, but i think i heard of someone using eagle rods, that went **** up at around 550 rwhp. To be sure, i wouldn't go over 450-475 with cheap internals. Best invest in something better and have the peace of mind. If your gonna take the engine appart and do internals, you might aswell do it right.

 

If you are paying someone reputable to build your motor, add the cost of pulling and putting it back in. Tuning etc.. I would put in the best parts... Make it one shot. Choose the parts you think are the strongest. I've herd good things about Wiseco...

 

power goal would be 450hp-475hp (on 93 octane ,98 in france) but with peace in mind instead versus stock internals(like someone are doing there )

i think 500hp+ not good for street use , roads in europe aren't straight as yours

 

Your stock lower end would likely reliably handle 450rwhp as is. No need to build a motor until you blow up the one you have.

Respect
JET

 

blowing one costs much more than building the first

 

Building the first one is a waste of money if you didn't have a need for it in the first place.

Respect
JET

 

When you tabulate the entire cost of building your motor, the difference between low end parts and high ends parts is minimal. Eagle rods can certainly hold 500whp, and probably much more. Pauter is the ultimate strength rod. For pistons, I have heard mixed reviews on Wiseco, so we dont carry them. FYI: Arias pistons are $760 on our website, with rings, wrist pins, and locks. So I wouldnt try to cut corners for $100.

But I would see no problem in going with Eagle rods and Arias pistons. Pauter is more applicable for those where funding is abundant, and/or, the 550whp+ club.
Link to Arias pistons: http://www.forgedinternals.com/store...cat=248&page=1
Link to Eagle Rods: http://www.forgedinternals.com/store/home.php?cat=249
Always in stock!

 

What is 0.20 overbore for arias ?
We have to cut 0.2" in the liners to drop them in? doing this operation could be very expensive in france you know.

sorry for any comprehension mistake my english is poor..

 

.020 of an inch (half of a milimeter), is removed, which is .25mm all the way around the cylinder. It's a very small amount of material. We always suggest oversized pistons, becuase each factory cylinder will be a slightly different size, and matching the cylinder to each piston, is the only way to ensure a proper piston to wall clearance, without variances between cylinders.

 

for that much power like Jet said no need to build you can easly handle 450 with a solid tune like many people here are.

 

Whats the poitn of using lower Comp pistons if you'll need more boost to begin with for the same power??

 

I am running eagle rods in my car with arias 8.8:1 pistions. from the research I did, they should hold to near 600 whp. The 300Z boys run them pretty high.

my car is running a stock APS kit with upgraded actuators. no cams. I think I have maxed out the basic kit, no counting the actuators. the lower compression will hurt your power up top without more fuel than the stock APS supplied injectors can provide.

my car's specs

 

the lower comp pistons just allow you to run alot more boost past the point where the stock 10.3-1 would detonate. it is a cylinder pressure/heat trade off. you will lose a little bottom end and throttle responce, but you will make up for it hugely with the amount of boost you can run on the top end.

 

the right question should be how long can those internals support the created power.

 

I noticed NO bottem end loss or throttle response loss. The tq I have down low is awesome and exceeds most curves I have seen. I expected some low end loss, but to my surprise, didn't see any:

 

I havent see much meaningful differences between 8.5:1 pistons and 10.3:1 in terms of trq curves. Theoretically, 10.0:1 CR dropped to 9.0:1 results in a 3% power/trq loss, which is something you will not even feel.

 

Oh, I disagree. There are plenty of reports from people on this board that can tell a 3%, or even 1% or 2% difference in power just from z-tubes, k&n filters, CAIs, exhausts, y-pipes, etc.

 

Got a good laugh out of that one

 

Then their butt dyno must be more accurate than a $50K load based dyno.

But seriously, oftentimes, people will feel power gains that arent even there, due to the increased noise that a CAI will generate.