Justin, I'd guess you'd hit about 220whp with that setup. From what I understand of F20C ECU tuning, MY00 F20C ECUs are tuned very rich from the factory, so I don't think that bigger injectors would help much. The TB will give you very little if any gain until you are making serious horsepower, and gearing your car lower (higher numerically) will actually cause your rear-wheel horsepower to decrease a little bit. Megan Racing has a reputation for building their products to match their prices, so I wouldn't expect big numbers out of that header. I assume that right now you are at about 212whp (say 210 after gears), so with a good V-AFC tune and the Megan header you should pick up 10-12 whp. I haven't seen numbers from anyone running an E-manage Ultimate, but you should be able to pick up more hp with that -- strap it on to a J's Racing header and you could be at 230whp!

 

For those of you who own a 2006+ s2k, there's a new thread about a Hondata reflash that gains 23 hp/20 lbs of torque with a Toda header/tp in the S2000 Talk forum.

 

ya at 5800 rpm...that to me is obvious. Why, they lowered the VTEC. So, basically think about it, if VTEC (higher cam) normally kicks in at 6000rpm, then if they drop it to kick in at what 4200, 4500. Basically you engage VTEC earlier so you compare non-VTEC numbers (stock) to VTEC numbers (reflash+header) and you see a HUGE difference. Well, that big spike when you hit VTEC is just that difference.

Don't get me wrong I fully believe lowering the VTEC for better mid range is great. But their advertising is misleading. I'm sure I'm near 20whp over stock at 5800 as well. My VTEC is at 5400 with an EMS.

And Justin, ya, I'd probably skip the Megan header...I'm just not feeling it. Unless of course it dyno's good but right now I have a good feeling it wont show much at peak. Other then that though you'll be pretty good.

 

it is a bit offtopic but I am having a head prepared at ballistic motorsports, the shop that built the 271 whp with a 2.1L engine, the head increases compresion to 12.5:1 +/-, have overside valves, better guides, springs able to rev +10.000 rpm more detail by emails.


If someone is interested pm please

 

ya, I talked to him...if I ever do any internal work then thats probably where my stuff will go.

 

Oh I've wanted the J's for a long time, the price just hurts so much I've just been waiting for a dyno or two on the Megan. It has really large piping so I've been optimistic, but I would never buy without some real dynos from members here on the board.

How exactly does the Toda header compare to the J's? If the J's really is the shit, I may spring for it but the 1200 dollars or so for the piece just seems ludicrous. I'll have to do some more research I guess. That and the E-manage Ultimate.

Does anyone know where to get a Spoon headgasket? I'm having some oil seepage around the seams of my block so I know I probably need one anyway.

 

I agree with silver. the same gains could be seen with a 300 dollar Vafc. i am 26rwhp over stock at 5500rpm, why? because vtak kicks in !!!!!!!!!!!!!!

 

Louie - come with me to redyno your car maybe next week...

 

remeber wyatt and JDM to go to Carb connection in Kirkland. They are top notch and do the ferrari dyno days, porsche race cars, have m3s and vipers in their shop, twin turbo GTO and they are open saturdays with a huge built in fan, just make sure to call and set an appt.

Dynojet

http://www.carbconn.com/dynamometer_service.php3

 

What exhaust system is this?