S54 Stroker build

[lapoune]

to be clear im not saying to not run a map sensor, but it will not fix a bad tune. the map sensor is only used to help correct specific situations, and with csl airbox you have no choice but to run alpha-n (w map or not)

[M/Anthony]

map is only used as correction on these cars, so you will be running alpha-n. with a well adjusted tune the map is mostly unneeded, so don’t stress too much

Ive only heard bad things ab it

[lapoune]

map is only used as correction on these cars, so you will be running alpha-n. with a well adjusted tune the map is mostly unneeded, so don’t stress too much

[M/Anthony]

is there a detailed CSL Airbox conversion thread?
I dont want alpha N

[M/Anthony]

Did the OP ever state the budget for his build?

I did some quick maths on my ideal S54 engine build and it comes out to roughly 11.5k minus labor and a refresh with OE internal parts such as rings, valve seals, bearings, cam followers and machining work.

Parts list:

CSL Intake with MAP
Full SS V1 2.5" catted exhaust
Schrick 280/272 cams
Beisan VANOS refurb
DINAN Throttle Bodies
PCS Tune

VANOS completely done already 5k vanos job when I had the car
I have a corsa 2.5" cat back already
I won't be going DINAN CA Technologies International and their shaftless throttle bodies I may go for
Its gonna be like 15k for the engine
i don't want to state a budget because Ill get told yes or no, I want to see how far I can go the point of this thread is to see how far i can actually push this engine without making a race one
it just needs to be in a car by December

[M/Anthony]

i would do twin system all the way only because i prefer the sound, look of a dual system and addiotinal clearance (though not always an issue) and easier to keep quiet and emmisions clean. Once you merge the two collector pipes (using X, H or Y) at the appropriate location then its basically about just about total pipe area and minimising back pressure so the single vs dual is 6 of one of half a dozen of the other. The single has a theortical benefit to reducing back pressure for a given flow area but its going to be pretty small to negligible IMO

wow thats great info, thank you digger

ill just stick with my corsa cat back and Ill look into collector pipes and just stay ssv1. I agree I want to keep stock looks

[Slideways]

Did the OP ever state the budget for his build?

I did some quick maths on my ideal S54 engine build and it comes out to roughly 11.5k minus labor and a refresh with OE internal parts such as rings, valve seals, bearings, cam followers and machining work.

Parts list:

CSL Intake with MAP
Full SS V1 2.5" catted exhaust
Schrick 280/272 cams
Beisan VANOS refurb
DINAN Throttle Bodies
PCS Tune

[digger]

Match that with a 3.5" single exit exhaust or go with 2.5" all the way back

i would do twin system all the way only because i prefer the sound, look of a dual system and addiotinal clearance (though not always an issue) and easier to keep quiet and emmisions clean. Once you merge the two collector pipes (using X, H or Y) at the appropriate location then its basically about just about total pipe area and minimising back pressure so the single vs dual is 6 of one of half a dozen of the other. The single has a theortical benefit to reducing back pressure for a given flow area but its going to be pretty small to negligible IMO

[M/Anthony]

it'd be pretty hard to go past SS stepped headers with the big bore SS mid section piping etc. any system that improves over it in a particular area is also probably likely to come with some other compromises

Match that with a 3.5" single exit exhaust or go with 2.5" all the way back

[digger]

it'd be pretty hard to go past SS stepped headers with the big bore SS mid section piping etc. any system that improves over it in a particular area is also probably likely to come with some other compromises

[M/Anthony]

like everything in life, define "best"

most optimal with a stroker setup that has higher duration cams than 280/272 and most likely a higher lift

[digger]

like everything in life, define "best"

[M/Anthony]

the question is now with a stroker build like mikes and carbahn whats the best exhaut setup and headers

[M/Anthony]

Mtherfcker no I didn't calc right, forgot to up the denominator for greater displacement.

440nm = 15.8 BMEP with raised CR. Sorry Teufelswerk wherever you are.

What's the Carbahn's displacement?

3392cc 93mm crank 12:5:1 according to their website

Mikes: Lang racing Stoker, 3.42L, a tab bit over 12:1 compression 296/284 14.0 and 14.5mm lift, 87.5mm bore vanos retained 390whp 280 wtq

[jbfrancis3]

Mtherfcker no I didn't calc right, forgot to up the denominator for greater displacement.

440nm = 15.8 BMEP with raised CR. Sorry Teufelswerk wherever you are.

What's the Carbahn's displacement?