Mopar Stage 3 turbo and manifold portwork
Break down of typical results seen from Stage 3 setups:
For reference "full spool" is a relative term so for the purpose of this post we'll call it 22psi
Base S3 kit (no porting or wheel upgrades): ~300-310whp pump/~330-340whp HOM and full spool ~3200prm
FFP ported S3 (no wheel upgrades): ~330-360whp on pump/~360-390whp on race (rare occasions we've seen over 400whp) full spool 2600-2700RPM
FFP ported S3 kit with 44lb wheel: ~380-410whp and full spool ~2900prm
FFP ported S3 kit with 47lb wheel: ~365-375whp on pump/ ~420-450whp on race gas and full spool by 3400rpm
Comming soon FFP ported S3 with 47lb wheel AND turbine shaft upgrade. Preliminary calculations show this combo can exceed 500whp. Actual calculations for our cars show it at ~524whp but we have seen this combo put down 475 on about a dozen 2.0L Mitsu's. Spool shouldn't vary by more than 100-200rpm when compared to the standard 47lb upgrade. But actual results on this newest option will vary.
The reason for the ranges are becase each turbo and manfiold was on a car with a different tune, with different configurations and different elevations. If you are really into exact numbers, I would hit up the regional section or a local board and look for a setup similar to what you are planning and go from their results.
Full port and polish in the 'elbow' between the O2 flange and exducer bore. O2 side can be matched to an aftermarket 3" O2 housing at no extra charge. Optional advanced thermal ceramic coating will boost performance an additional 1-6% in HP (according to manufacturer's claims) plus it lowers engine bay temps and really cleans up the cast iron look.
Typical gains with the portwork and ceramic coating is up to ~47hp/60tq more at the wheels (keep in mind you will only see these gains if the PCM does NOT have controll of boost). Other benifits are lower EGT's (great for those who use the bottle), lower engine bay temps, quicker spool by ~300-700rpm, and increased thermal efficiency of the manifold.
PnP S3 turbo and exhaust manifold: $395
PnP stock exhaust manfold only: $345
FFP Big S3 turbo upgrade: $535 (for 47lb/min wheel) *any used turbos should be rebuilt, this cost is not in the upgrade price, price is assuming a new turbo is being used*
FFP BIGGER S3 turbo upgrade (larger turbine wheel and 47bl/min Compressor wheel): $ Will be available via groubuy only
Advanced ceramic coating: $90 (black or blue)
Advanced ceramic coating: $160 (red, or orange)
Cryo treatment (to prevent the ramp from cracking, good for all manfiolds but HIGHLY recommended for any upgraded turbo setups) $180
Core system not available at this time for S3 manifolds
Shipping: generally ~$30-55
Why go this route? While there are other S3 options out there, and here is the dyno of a before and after a competitor's offering and my portwork. My work is shown in blue and really highlights the spool characteristics that can be achieved with my work on S3 kits. Again this is my work compared to another leading competitor's
STG3 hits MPH goal but the time sucks - SRT Forums - SRT4, SRT6, SRT8, SRT10 & Dodge Forum
A special thanks to srad2drag for the above results.