fleshlight86

I recently bought a s2k with a bc 2.47 stroker kit. I had my car tuned using haltech ps1000 and only made 238whp and 181.6 ft/lbs on a dynojet. Does anybody have any idea why numbers would be so low? From what I gathered I should be well into the 260whp range. My compression was 250 in all four cylinders.

My mods....
Bc stroker 89mm/11.5:1
bc stage 2 cams
Acl bearings rods and mains
Bc dual spring and retainers kit(limited street/race)
Intake valves 36mm
Exhaust valves 31mm
Block sleeves-darton m.I.d87mm-90 bore
Arp head studs
Cometic head gasket
Mild port on cylinder head
Haltech ps1000
I'd 725 cc injectors
Berk header /test pipe
Buddy club exhaust
Aem v2 cold air
Skunk 2 throttle body

Any theories on why my power output is so low? From what I hear dynopacks give higher power numbers then other dynos.

jh4db536

have you ever opened up the engine? how sure are you that it is really a 2.4L?

fleshlight86

Took off the valve cover. All bc parts are there. As far as the block goes I don't know. I am going by the compression,the receipts I have and the decent tq numbers. I really don't know for sure but it seems to be legit.

kent876

for starters id suggest ensuring ur running at least a full 3" minimum exhaust from header back... if you aren't id upgrade that first.... next to yield better power from all that cylinder volume id step up to stage 3 BC NA cams...
i wud be nice if you were to post a copy of ur dyno graph and/or a saved datalog...
but for as i said start with checking ur exhaust...
GL

liquid_helix136

maybe the peak numbers arnt there but 180wtq is pretty freaking nice if its not on a high reading dyno.

fleshlight86

I am not sure if my single shot exhaust is a 3 inch. I'm thinking it's a 2.75. I ll check tomorrow. Also I will post my dyno charts ASAP. ( can't right now from iPad)
Would the exhaust be that much of a bottle neck?

fleshlight86

I have heard dynopacks read slightly higher numbers. Not sure if there is any truth to this.

wadzii

post the dyno chart.

What header do you have? do you still have the stock cat? Your numbers seem right inline with previous 2.4L motors I have tuned with stock exhaust/small exhaust parts.

I'd also get a bigger intake, a custom 4 inch cold air will really help that motor up top.

b.r.i.a.n.

that peak torque tells me it's a 2.4.

is that buddy club exhaust a dual exit? go with a single exit 3 inch and like wadzii said go with a larger intake. the intake is going to net you more gains up top. what's the compression ratio? what were you guys revving to the motor to?

UpsFella

I hope that the Cometic head gasket is not a 3mm...