200whp with stock N/A rotating assay? by ForcedFirebird

4 minute(s) of a 31 minute read

Dyno day. Run 1, pulled on dyno as it sat. Run 2 cut the P/S belt. Run 5 is Sssquid's file. Pretty sure this engine has never been opened, if it did, it was eons ago as the head is pretty filthy inside.

That happens because the ECU stops reading higher RPM's before the rev limiter and the last block in the maps are carried through for fuel/spark. That can be changed, but since this was a Spec e30, it had an unopened ECU.

This was your OEM performance tune, very surprised the AFR's were so behavioral. Client put 19's in and been driving it, and was surprised it had adapted that much - still the common BMW lean conditions.

Idles and drives like junk though, just like everyone else who puts bigger injectors on without a matching chip. Didn't want to waste time dyno tuning this motor, already showed low power.

Best to date on an all stock motor was 157whp header and exhaust only car. It has the Racing Dynamics headers, true merge collector in reverse to a Vibrant 2.5" resonator, back to true merge into a Billy Boat rear section, OEM induction, cam, rebuilt head, dyno tuned.

Everyone loves pic, right?

7-28-2014

No argument besides the manifold (ie head to TB design) is at play here. Would your view change if the Jenvey setup made more? Not playing sides here, BUT, am a small independent shop in South Florida who really is testing stuff.


Rama, one day is fine, the next is black. Let's get 'er done. Would love to run your kit for no better reason than you are a gent like me.

Just put a locals' tune up, as mentioned, it is what it is. No hold barred. My job is to deliver to the client.

8-25-2014

After installing the Rowland manifolds and Extrudabody ITB's on another customer car and had to do a booster delete. This client and I have decided to go ahead and purchase the RHD kit, so you have an email, Rama.

The head is finished. There was some slight corrosion in one of the coolant passages, so that was welded prior to milling. The head got refreshed with new guides and all, and we went with the +1mm intake and exhaust - flow numbers will be posted soon. Really hoping the kit will get here in enough time to flow test them on the head as a unit - the car is supposed to be on the track mid-September, really would like to meet our deadline.

This could almost happen here on this car, but don't think we will have time before the deadline since we only have 45mm Jenvey stuff here and would be a while before we could get a set, but might just throw the 45's on your manifold to see what happens.

I already have all the flow data from this thread, which included stock manifold on a stock head...

http://www.r3vlimited.com/board/showthread.php?t=261381

Just need to stack the RHD stuff on the head, maybe even mix things up with Extrudabody, Rowland and perhaps even Jenvey. It all depends on how quickly Rama can get the kit overseas. For a short time we will have all three kits here at once.