Markert Motor Works Dyno Thread (many inside)

[328ijunkie]

Also forgot to add this one:
S54 AA Prima Stg 2 Kit, TTFS Tuning, E85

[328ijunkie]

Redynoed my personal POS finally.
Previous was full tune with M52, M50 manifold, stock headers/midpipe, intake
After run is New tune (run 20) with S52 cams being the only change...


So basically with a tune S52 Cams on a M50 manifold Car are worth 25whp :P

[ForcedFirebird]

Nice power from that 2.8! I am always telling people to use the 2.8 and just cam them, but they all go for that extra displacement.

[squidmaster]

Nice improvement! I'd like to see the 3.5" MAF next ;)

[328ijunkie]

Bet you 10$ it won't make any more power ;)

[ForcedFirebird]

Bet you 10$ it won't make any more power ;)

I tend to agree, but according to this thread, it did make a difference...

http://www.r3vlimited.com/board/showthread.php?t=359104

Just not sure about it making more power once the tune was remapped for the MAF, just slapping a larger MAF on is just going to skew what data going to the ECU, and could make more power, but not necessarily due to the increased size.

A MAF only needs to be the size of the TB, and these engines certainly are not maxing out the stock MAF's while N/A (2.5" can support about 400hp).

[328ijunkie]

So hes running OBD1 S52 on what a red413? 24lb injectors? 21s? Im betting stock MAF with oversize injectors was dumping fuel and 3.5" MAF leaned it out to a better AFR range thus power was made.

Not conclusive in the slightest. ;)

[squidmaster]

it looks like, on the graph, it was richer after the 3.5" maf. But without a tune the 3.5" maf won't run right. The transfer tables aren't the same....

[328ijunkie]

On obd1 at wot it'll just throw afrs off globally across the scale. Which i suppose "isn't running right" but sometimes works out to your benefit which may have been the case here

[328ijunkie]

8/23/15
Been having some fun trying to make some power in this heat! Every baseline run car is relatively cool, and while tuning its burning hot!
Tuned two S54s recently. One was remotely in Texas for GSR, a S54 E36 swap.:
S54, intake, Ebay headers, BW merge, some crazy (not brilliant) exhaust setup after that.

Conditions:


Bone stock 35k SMG E46M3

[LJ851]

^ 1.08 correction factor, that's some lousy HP weather !

[328ijunkie]

No doubt. Need some bigger fans :(

[frankenbeemer]

No doubt. Need some bigger fans :(

Reminds me of the chinese air compressor you taped all those computer fans to. Good times.

[328ijunkie]

6/26/15
Tuned another S54 Swap today. Car already had my off the shelf swap tune. S54 in an E36, BW race exhaust, ebay headers, stock airbox, ghetto intake

[328ijunkie]

7/1/15
Finally Finished tuning a SCS52E30M3. Car came in as OBD1 S52, we baselined it then converted to OBD2 and put a AA Stg1 C38 kit on it and tuned on pump gas, then tuned again on race gas with a separate ECU. Car has shorty headers, M50 manifold, and the most horrendous exhaust ive ever seen :(. Heat was also a killer here, the customer and us both were hoping for a little bit higher numbers but temps at the dyno were 100+ constantly + a non IC blower

Pump gas vs OBD1:


Race Gas Vs OBD1


Then Tuned a E46 330i, Car had headers, AFE Intake, and muffler. DISA changeover could use some love.