What's your whp?

[TimR]

Love to see this out in GD BUT the intelect war would probably get it shut down, familiar with the ceist and decist post.

[Gleb]

Numbers don't mean a lot by themselves as different brands on dynomometers produce diffeing results. Comparison the other cars on the smae dyno is much more meaningful. That said, my Spec E30 made 162hp/155tq on a DynoJet on a 100F day. The numbers would have been a bit higher on a cooler day. As an FYI, a Spec E30 is required by the rules to have bone stock engine and management system.

162 at the wheels? What was done to the engine?

[ForcedFirebird]

162 at the wheels? What was done to the engine?

It's a spec e30 racing car ;)

[nando]

162 at the wheels? What was done to the engine?

they can balance and blueprint it, and do the max factory overbore. it has to be 100% stock otherwise.

[jlevie]

As stated, this is a Spec E30 engine. Class rules require that the engine use only OE or equal parts, which means no forged pistons, etc. The engine was bored out for .5mm over pistons, but that makes very little difference in displacement or power. A stock bore engine can make the same power.

The head was milled to minimum thickness, the rotating assembly was precision balanced, the cam blue printed, and a three angle valve job was done. That is all that was done to the engine above and beyond routine rebuild procedures. The DME is stock as is the rest of the engine management system. The car does the Spec exhaust, which is straight tubes from the headers back to a single glasspack. The head work and exhaust have a lot to do with the engine's performance.

When we took the car to the dyno to tune it we brought a half dozen or so 173 DME's and made pulls with each to find the best and second best (which I kept). There was good bit of difference between the worst and best DME's. Notably the A/F ratio below the AFM cutoff point (~4500rpm) varied with DME and was terrible (~16:1) for the worst. That was almost certainly aging of the AFM and/or temperature input channels of the DME. The only other tuning we can do is to tweak the clock spring tension in the AFM to make the DME think that it needs more fuel. That makes the A/F ratio better below the AFM cutoff point. Above that, the DME is running in open loop using only rpm and temperature.

[SilentJon]

my whp is currently .2

[samurai pizza cats]

right now my RWHP is as fast as i can push.

[Pussy30]

Would like to dyno it but I think my m50b25 with bolt ons its prolly just shy of 200

[Jaxx_]

Above that, the DME is running in open loop using only rpm and temperature.

wait, so it doesn't use TPS or anything else?

[IminDiegoTriick]

This thread. needs. pictures.

[StereoInstaller1]

No RWHP right now

(missing guibo bolts, been sitting all winter)

[morerevsm3]

my Aussie spec E30 racing car made 170rwhp on dyno dynamics yesterday, M20B25 with headers, cold air intake, and minor head porting and 3 angle valve job, everything else stock
my 3 litre E36 M3 (euro) made 314.8rwhp a week ago with bolt ons + mild cams

[digger]

my Aussie spec E30 racing car made 170rwhp on dyno dynamics yesterday, M20B25 with headers, cold air intake, and minor head porting and 3 angle valve job, everything else stock
my 3 litre E36 M3 (euro) made 314.8rwhp a week ago with bolt ons + mild cams

seems like a lot for a pretty much stock M20B25, that is more than M50/M52 make (115-125rwkW) and not far from M54B30 (130rwkW). What do bone stock put on that machine?

[morerevsm3]

mine made 102rwkw stock I think, there are a couple of other tweaks which I am not going to divulge, but they are external and within class rules, just done better than my competitors

[R3Z3N]

Here's my '88 325is M50B25TU+M3 Cams+ Chip 4th gear pull with a 5sp ZF M3 tranny and 2.93 LSD

http://www.youtube.com/watch?v=2DlIrIcBw-E

(Spoiler: 168 RWHP, 154 ft/lbs @ 5k rpm)