whats compression ratio got to do with what i corrected?Originally Posted by todaek9
Compresison ratio and camshaft spec should always be decided together.
you get comp ratio and camshaft rite then you can do the rest.... heres an easy example for you...
most ppl who start modifying will get like a 2 or 2.25in press bent catback hoping to get some gains... fair enough if you want to leave it at I/H/E... I went with 2.5in mandrel on 1.6l motor first time around because i knew i was going to build the head later. Man why would I want to pay for it again when i knew I was going to get say Toda B cams later and up the CR to 12:1. In that example, porting and all that shit... would you justify the labour cost for an extra maybe 3wkw on a mild setup even though the head is off etc etc... YOU DECIDE THE WHOLE MATCHING SETUP FROM THE START AS WELL AS POWERBAND TO GET THE MOST OUT OF YOUR $$$
As i've advised with anyone, a full exhaust system is the single most expensive bolt-on you do to a car that you don't want to have to spend on twice. At least plan everything first and don't listen to the next exhaust shop that tells you that 2in is more than enough for a small 1.6l
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