okay i done some more homework, here's a little more info to share, not to say anybody is right or wrong.. just wanna share info ;)
Lets just talk about the ENGINE only, not the suspension or somethign else that TRD might do to the car.
Master Yoga mentioned that the engine got a new:
-lightened piston
-reprofiled camshaft
-lightened flywheel
-exhaust manifold
-muffler system
-sport air filter
-probably rebuild the whole engine, blue print and stuff..
-did i miss anything?
and the power gain from those mods is 20hp, with stock ECU. What sifoo yoga say is true, do a little reseach on TRD's website too, they even got the same pic. http://toyota-trd.jp/en/news/trd008.html
element, you say the ECU alone won't get you 30HP, well i have to agree that, totally agree, cuz:
http://www.todaracing.com/products/honda_k20a/engine_kit.html
from the link you provided, i found that the 50++horsepower figure you provide isn't just the engine kit.
quoted from the website. The 57.5hp gain include the engine kit plus INJEN CAI plus Toda Exhaust manifold plus Mugen exhaust system. (3 aftermarket tuner vs TRD.. no fair :ph34r: ). The engine kit alone only gives 33.9hp. ofcourse i can't say anything cuz the 33.9hp gain got something to do with other mods too, i'm sure the camshaft have to depend on the intake and exhaust manifold to determind how much more power it made. more to this later.
The engine kit include:
-Toda spec N2 cam
-Toda uprated valve spring
-Toda N2 ECU reflash (you send in your stock ECU and flash it with new mapping, assuming that the one 2ZZGE have is "stock" mean no flashing with new mapping, someone.. yoga.. whoever.. help me verify this, can't find any info)
oh sure... they don't have a high comp lightened piston, but lets neglect it first.
lets talk about the camshaft, and about the hp gain, about torque gain....
Want to mention that i dunno what's the new reprofiled 2ZZGE cam's duration is so can't really make comparison. But here's some info:
2ZZGE power gain from TRD mods:
20horsepower
10lb.-ft torque
(stock 2ZZGE spec obtained from http://www.toyota.com/vehicles/2005/celica/specs.html)
K20A power gain from toda engine kit (and other upgrades from INJEN and MUGEN):
57.5hp
36.8lb-ft torque.
how do i justify this? well i can't, but i lots of info for ppl here to think.. maybe sifoo masters can do better. Lets start:
- both engine got a new muffler/exhaust system, exhaust manifold, and a new camshaft.
- K20A got an ECU reflash (guess its where all the extra torque came from)
- K20A got an N2 spec cam, http://www.todaracing.com/products/honda_k20a/camshafts.html , and IMO its gotta be higher than the reprofiled 2ZZGE cam, cuz its still run on stock ECU, can't go too far, thus less power gain. Note that the N2 spec vtec cam have 12mm lift for both intake and exhaust, while the stock vvtli cam is at 11mm intake and 10mm exhaust, not sure about the reprofiled cams.
- high comprasion piston. increasing from 11.5:1 to 13:1 won't get you too much hp. Car tuners should know the power is harder to harness as the compresion ratio get higher. You only get little power gain from 11.5:1 to 13:1 compare to 10:1 to 11.5:1.
-Toyota always seems to be a little bit conservative.
-for god sake we are comparing 2liter engine and 1.8liter engine :wacko:
and a question to Element,
you say the Toda engine kit is just bolt on, yeah sure for the consumer. But to the end they are doing business as well, IMHO i don't think they will use a beat up K20A that someone sold to them for 500bucks to do the dyno, its gotta be a rebuilded engine, stock, probably no port and polish but big chance they balanced the engine already.
if i say anything wrong pls point out.. dun flame me :ph34r:
