Modification Math (stock turbo)
Nice info Razorlab!
To summarize:
#1: bone stock evo 8 ---> tune, exhaust, filter, more boost = 34 hp
#2: bone stock evo 9 ---> tune, more boost = 32 hp
#3: bone stock evo 9 ---> tune, more boost, filter, exhaust = 76 hp
How come you think the #3 example was such a beast?
By the way that is real professional how you do the baselines like that. Very impressive stuff.
To summarize:
#1: bone stock evo 8 ---> tune, exhaust, filter, more boost = 34 hp
#2: bone stock evo 9 ---> tune, more boost = 32 hp
#3: bone stock evo 9 ---> tune, more boost, filter, exhaust = 76 hp
How come you think the #3 example was such a beast?
By the way that is real professional how you do the baselines like that. Very impressive stuff.
You forgot the other Evo 9 with tune, boost, exhaust with HFC = 50whp
Difference between that one and #3 is test pipe and open filter. I usually see 10-15whp with Test pipe and another 10 or so with a good open filter, so there is the approx 20-25whp difference between the two. Some are stronger than others of course.

We try to do baselines whenever possible. Numbers are just numbers but delta gains show the actual improvements.
Unfortunately, it isn't so realistic to attempt to add the benefit of various parts like a grocery list. The degree of benefit a certain part provides is dependent upon the efficiency of other parts. It would be convenient if power improvements could be listed like an a la carte menu, but it doesn't work that way. This is why certain vendors group parts into staged upgrades.
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thedru13
Evo Engine / Turbo / Drivetrain
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May 21, 2015 09:54 AM










