Greg W

I had a Haltech Platinum Pro installed in my '05 AP2 with K&N intake and custom 3" header-back exhaust (by Pacific Throttle House in Monterey). Rest of the engine is stock. Tune was done on Driving Ambition's Dynapak (with Shad at the helm of the laptop). Baseline map was the off-the-shelf Haltech S2000 map producing 196 hp and 146 lb-ft torque. After the tune it produced 224 hp and 164 lb-ft torque, an increase of 27.9 HP and 18.4 lb-ft...not bad! The big adjusment was the AFR, which Shad dropped from ~14.5 to ~12.8. He also advanced timing a bit (2 degrees I think), but not so much it'll rattle in the hot summer Thunderhill afternoons.

Here's the tourque, HP and AFR dynos charts...I'm happy!

s2000Junky

Cool, but what did that car dyno stock on that dyno before the mods? I’ve seen bone stock and catted ap2’s on Dynojets produce very similar numbers. The only thing we have here is a comparison between a base map and a tuned map. The base map could be giving you less power then if you were to have driven up with the stock ecu intact and ran that first. At any rate, if the car feels faster and your happy with it, awesome

06Estukay

Comparing his results (Dynapack) to readings you've seen on a Dynojet is pointless.

OP, those are very solid numbers for a Dynapack using the regular SAE correction factor. At my local dyno (also a Dynapack, with same software), most S2000's produce between 190 to 205 with OEM ECU's (using standard SAE correction). Of course condition of engine and mods play a roll. Those results are almost identical to my 06 on Flashpro a couple seasons back (224hp, 163 ft lbs). Mods were a custom 3.5" short ram intake, 76mm test pipe, and Challenge 76TA-R exhaust. Even the torque curve is eerily similar!

You did very well. Congrats.

liquid_helix136

Holy cow that base map is running lean. 15s at wot is a no no!

Greg W

I had a Dynojet dyno from a few years ago when everything was stock, but don't want to cross-compare that to this DynaPak. At that time it pulled nearly the same torque (143) but more HP (206). However, no conclusions to be gained from comparing the two different machines.

benes2k

14.5 afr at full throttle has to be a mis type. thats close to stoich which is meant for cruising, under WOT it shouldve been down in the 11's. be careful to whats going on with your car! I would never go WOT if AFR's were above 13.

Garrett_si

the red AFR line is with the basemap provided by Haltech

the blue is after all tuning.

his AFR is now 13:1 perfect

award78

Is the Haltech base map for AP1 only? Maybe that's why it's so lean, I hope it's not the case for AP1. I'm planning on an etune and don't want to risk damaging my precious F20c. Can anyone verify this?

b.r.i.a.n.

Yes, the base map is for an AP1. I wouldn't recommend etuning a standalone ecu since there are some things that have to be done in person such as setting base timing.

award78

unfortunate to hear that but thanks for the response. Maybe I'll save some more and have ptuning do it.