Just wondering if that is possible. I was toying with the idea of trying to get an NA AP1 to Elise power to weight ratio. I am using RWHP for power to weight and not crank because I think power at the wheels is a better measure.

From the graphs I could find, the Elise with an empty tank weighs 1984 pounds, and makes 166-168 hp stock on a dynojet. Lets call it 167. That is 11.88 pounds per hp.

Stock AP1 makes about (MY 2002-03 ecu) 190-195 (call it 192.5) dynojet HP stock at a dry weight of 2750 pounds. 14.28 pounds per hp.

I was going to add a few things to the car this year, and maybe do FI next year. I am waiting to see how people like Krafwerks and Stage One kits when they are released.

Any way if you swap these parts...
Intake -6 pounds
Berk Cat -7 pounds
Odyssey battery -14 pounds
Fujitsubo Exhaust -14 pounds
Tire and tools -32 pounds
Odds and ends -3 pounds

The car weight would be 2674 pounds. With no hp gain that would be 13.89 pounds per hp. To get to the same 11.88 you need 225.

I would also need to find another 5 pound weight loss in the car to cancel out emanage ultimate. How much does a tune weigh? If the tune gets it to 225 you have Elise power to weight (but without Elise handling that 700 pounds lighter gets you) for about $2200.

I know a single would net more, but I hate loud fart can exhausts. I could live with a J's 60rs if it was not for the purple tip. It is the only single that I like the looks of, would gain a little over a dual, drops and extra 20 pounds over the Fujitsubo, but puple tip on a silverstone looks awful. If only they made one with a stainless tip.

I know headers lose weight but I am not convinced they do much for the money, and it would probably need to be a $1500 Mugen so I could keep stock heatshield mounting for possible Stage One SC kit.

You may ask why does equaling Lotus power to weight mean anything? Just for the heck of it. I think getting to the same pwr/wght and dropping in some gears would make for a really fun car. And then if I decide I want a scary one I can add SC.

Thought and suggestions welcome. I am bored at work today.

 

With what you have listed, I would add cooling mods which will give you a more aggresive tune with the Emanage and therefore add a few more hp, yet still reliable (also drop the Berk cat and just put their test pipe in). 230 whp is not out of the ordinary with these mods.

 

I have to pass on the test pipe. Bunny hugger.

I have the fan switch and thermostat already. I also have a Hondata gasket but have not installed it. It looks like a full days work.

We only get 92 octane here though. I am sure that will limit the timing somewhat.

Every high HP AP1 graph I see seems to have a 70 mm single. It seems that it is much easier to reach 225 with AP2.

 

highest i have hit with stock exhaust is 218 whp dynojet.


that was with my custom intake, VAFC II and a testpipe,

with a real tune something like greddy ult emanage, or AEM 225 + would be easy with stock exhaust!

 

I would think 225 w/ an AP2 (let alone AP1) w/ just bolt ons would be tough. I have a T1R header/exhaust and TP and only pulled 216. I will do the Hondata reflash to take full advantage of these mods but that has not really increased peak power much from what I have seen. It does have a significant effect in the midrange however. Good luck and keep us up to date.

 

225whp here on my old 04 with bolt ons and no tune

 

Is that SAE corrected on a dynojet?

 

my 218 whp was on a dynojet with SAE corrections also. my uncorrected was 224 WHP. If i were to have a good 70mm exhaust my car would have crushed 225whp

 

yes zir.

 

Do any of you higher hp/tq guys have dyno plots I can see and compare ot mine?