10psi on a old NV1000 comptech kit on average yields 350whp on a dynojet at sea level. Why would you "expect" a NV1200 at 12.6psi to produce less? This isn't a typical expectation to have. Sorry, dont mean to be a stickler but I would be confused and rather pissed with these results after the money invested here.

 

The PSI is all dependent on how free flowing the overall system is.

 

By system, I dont mean the "supercharger kit".

 

Don't worry I think I'm taking all of the variables in consideration. If he were running a stock cat I would say the exhaust is a big contributor, but Like I said in my first post, its about 50whp short of the norm/average for (his) set up. If your saying he's making 12.6psi on a 8psi rated pulley then you would have something here, but I dont think that is the cases, and if it was, then we need to figure out why such the restriction, becuase that isn't typical either. Someone else chime in with experience please

The point is, I'd actually like to help, if we can get some more info on the tuning aspects and see if we can figure out why its not putting out what it should if possible.

Or the OP can just not worry about it.

 

U dont gain a lot of power running a qtr point leaner. My guess is ultra conservative timing for that amount of boost.

I do agree that a SOS kit at 9-10 psi is around this power. If ur aem savy pull up ur map let us know the wot timing at that load.

 

 

Who tuned this?????? What map sensor u running?

 

A long time really good friend with over 10 years of engine building and tuning experience, but I must admit this was his first supercharged s2000. I am running the stock map sensor because I did not expect to see these boost levels. If someone can post their ignition maps then I can relay it to him. At the shop we got it tuned at (there were several other tuners there) they all agreed there wasn't much to be gained with the ignition map. I also asked for a conservative tune because this is my daily. This power graph was only a semi money run we tuned it for 4 hours and for the last run we cooled it for 5 minuted the IAT's were at 115 before starting the run they varied from 110-95 during the run. It was also 60% humidity and 66deg that day. Dunno if any of these variables accout for the disappointment for ya'll. For me I am very satisfied.

 

Bingo.

Yeah in my opinion the timing curve is overly conservative for your boost, as well as the afr. But it makes sense given your expectations and that your tuner has no experience with your set up. If its running good, leave it alone and enjoy it. Just know you left a fair bit on the table. But better to air on the safe side if you dont know what the limits are, cant poke at your tuner for that. Just know that a centrifugal SC due to its extremely predictable boost curve and linearity is one of the easiest and most forgiving set ups to tune on our car. Its nothing like a turbo.

If it were me, I'd get a map sensor, gain more correction points in boost so you can better fine tune your timing and add a few more degrees. Vtec should come in between 3500-4k rpm depending on when your car starts to pick up power (mine is 3500) I start to pull -1 of timing from stock starting at 5psi and would pull a total of 10-12 degrees at your max boost, in a linear fashion to match the boost/rpm. General rule is pull -1 timing per psi to start with, add or remove as needed depending on your cars response, fuel octane/detonation threshold.

Your kit at the stock 6psi and old Comptech kits at the same base psi level pull no timing (28-30 degrees)just fuel enrichment, for your reference.

 

You are running the stock map sensor and able to boost to 12.6psi?