this was posted over on a-tl

Originally posted by 2ONPAR5
I notice most of the proposed solutions are exhaust system based... good start but quite inferior... we have an experiment cooking in SC that I'll keep you posted.

I initially posted the question because my shop in SC has bumped two 2000's and 1 1999 TL-P from 225 hp to 293 by shaving the heads 2 1/2 degree from tdc in a geodesic radiant pattern and installing a high output r/t cam. All of the cars came in due to broken the timing belts and required significant repair, but we figure (my senior mechanic has 23 years of exp. with Honda) that we could do the same job on a non-timing belt job for $799.

But to be fair, we tried the same cut on a TL-S from a friend of ours and was able to generate 300 hp on the dyno. It's not as big of a jump in the TL-P, but it's more overall. We think the higher initial compression and manifolds of the TL-S doesn't lend themselves to the higher percentage of output as the TL-P. Both engine mod realized a 5% increase in fuel efficiency.

Nevertheless, maybe we'll get lucky and Acura will pick-up our mods in the 2005 versions.


any of you engine gurus have any idea if this is BS or not?
see original thread here

 

Very interesting...Dynos...other info to come? I am interested.

 

Dyno...

AND


Dyno...

Oh, and

Dyno...


Seriously, a hot cam should actually make more power with higher compression (well, that was my experience).

I looked at that 300HP on the dyno comment and is that "projected"/"calculated" flywheel hp or actual front wheel hp (FWHP/WHP). To get 300 WHP with some head mods and a cam would be a nice trick. Another qualification would be related to how "peaky" the HP/TQ was...


I'd give this a lot more credibility with a qualification of WHP or flywheel HP (flywheel HP == why not).

However, 50 more wheel HP from cam and head job (at same redline)… I’ll wait for a dyno…