EGcivic_95

so i want to build a boosted lsvtec, bored, sleeved, and stroked. 95mm crank a good idea for this?

rich7777

Neither

mar778c

iTrader: (1)

Eagle crank, no.
Castillo's, yes.
Billet, yes.

EGcivic_95

saying no about eagle.. your opinion or can you explain more why you said no, like back up you opinion i guess id say. i just want good details why i can or cont do something you know

rich7777

Because you'll probably spend more on machine work trying to correct it than you did on the crank its self lol...

EGcivic_95

lol they come shipped that bad? lol

EGcivic_95

lol ill only be spending lil under 400 for the crank, my grandpa races and gets discounts threw alot of parts suppliers

b20vtech

I personally wouldn't use a crank that big for a boosted engine, but if you would like to, go right ahead. I can tell you that Crower to Castillo are gonna be of the better quality cranks around, I have herd a few horror storys about the Eagle cranks but never personally use one myself. I have use the Crower 95mm crank for a 2.1L B-series allmotor and it's an awesome crank, very good quality right out the box, never done any machine work to it. good luck!

-Kevin

rich7777

To be perfectly honest with you i shouldn't of said that as there quality may have changed. I know around 3 years ago they were a complete pile of **** so i was just going by that. Like i say they may have changed... but i can't honestly say so i'll leave it to other people.

O yeah, about the 95mm stroke, that will depend on your application/setup. Keep in mind and be carefull with your final r/s ratio though.

ROMEO856

may i ask why are you considering using a 95mm crank? plenty and i mean almost all are using a 87-89mm crank making 300-900hp+ so i ask why use a 95mm?

EGcivic_95

well i want to try something different i guess, different in a way that may add more power cuz when u mess with the displacement that when you start adding hp and tq you know.

mar778c

iTrader: (1)

Ok, I know 3 people who have owned Eagle cranks. All three wound up with a failed crank and blown engines. As for the details, one had Pauter rods, another Eagle, and another Carillo rods. They ran bearings which were sized for the correct clearances. What else would you like to know?

Turbo-LS

iTrader: (4)

It's boils down to r/s ratio. That big of a stroke is going to require short rods and your going to drastically increase piston speed and if its not going into a sleeved and quite possibly a super decked block then it's not going to be a great reliable motor especially boosted. I wouldn't even attempt 95mm stroke on stock sleeves

Eagle cranks sheer right in half and not at one particular place it's random, for the American stuff they have it down pat for our engines they don't have a clue plan and simple. If your going aftermarket its got to be Carrillo maybe cower or a really high dollar custom unit that I wouldn't even know where to get it. Stock cranks work just fine. Unless your a millionaire and have nothing to do with your time and money then don't try to be an innovator stick with what's is tried and true and have a fun reliable vehicle

sanman000719

eagle cranks tend to SNAP

EGcivic_95

hmmm, ok well ill see what else i can find out so i wont be going to eagle lol

W!d3b0dYr3X

like everyone else said you might need to take into account the r/s ratio. i myself am in the process of putting together a brian crower 2.2l stroker using their 95mm crank and going to shoot for around 650-700hp running a 6776h precision turbo. i took into account the r/s ratio and decided to run a dart b20 tall and closed deck block.

the deck height is 226mm where as standard, i think is 211mm? cant remember off the top of my head. i also went with crower long rods and a set of custom pistons to keep all the ratios as close to stock as possible.

i opted for this route because of exactly what turbo-ls said. you will prob have to use shorter rods which will increase the r/s ratio, which usually decreases the reliability since thrust loads on the cylinder will generally be higher

Spawne32

iTrader: (3)

i always hear horror storys about eagle cranks

EGcivic_95

very true. im only using a ls...So. where did you find the b20 dartblock?

Turbo-LS

iTrader: (4)

You can run the tall dart block or you can get your block super decked by erl's

tepid1

If you're going to run a big stroke crank look into using a lightweigh rod. BME and GRP make some killer aluminum rods. A steel rod and boost will most likely destroy a crank with that R/S ratio.

EGcivic_95

ok super decked? lol never herd of that.

EGcivic_95

the aluminum rods wont stretch will they will boost? i plan to hit atleat 600hp that my goal as of now.

visionauto

i have a close set up like this and works just fine

EGcivic_95

what are you using crank, block and rods? what brand that is

tepid1

They do stretch and grow, however that is built into the rod. We are only talking .00xx if that at all. Aluminum is very forgiving and very strong compared to what they use to be.