How to get 300whp+ on a HR
Dynojets are the most comparable across dynos (not necessarily more accurate) because they have fixed atmospheric correction factors (STD, SAE). All the others are variable unless you calibrate them to Dynojets. Dyno Dynamics, DynaPack, Mustang, can all be adjusted to read higher or lower with "bogus" (or fairly accurate) atmospheric correction factors (usually in an attempt to be on par with a DJ across town). The point is that if you don't get a Dynojet, it means nothing on this forum. It's still a great tuning tool and just fine though for a before/after comparison!
Last edited by rcdash; Sep 3, 2009 at 01:55 PM.
Dynojets are the most comparable across dynos (not necessarily more accurate) because they have fixed atmospheric correction factors (STD, SAE). All the others are variable unless you calibrate them to Dynojets. Dyno Dynamics, DynaPack, Mustang, can all be adjusted to read higher or lower with "bogus" (or fairly accurate) atmospheric correction factors (usually in an attempt to be on par with a DJ across town). The point is that if you don't get a Dynojet, it means nothing on this forum. It's still a great tuning tool and just fine though for a before/after comparison!
300whp w/ injen dual cai, stillen headers/high flow cats, JIC single and UpRev tune.
- Brady
Well done.......dynojets are generally the easiest in comparative terms. My car is tuned on a dynodynamics, but I have a dynojet 1.5 miles from my house. I usually throw it on there for the ease of comparison.
Just out of curiosity were the numbers std or sae?
Just out of curiosity were the numbers std or sae?
I'm only working with the iPhone so no HD vids here.
Link to video:
http://www.youtube.com/watch?v=mS-t2J1EXPQ
Dyno results.

I'll get a picture of the whole thing later on.
Link to video:
http://www.youtube.com/watch?v=mS-t2J1EXPQ
Dyno results.

I'll get a picture of the whole thing later on.
I just bought mine from Stillen. 304 stainless headers and Cats came to around $1,300 when all was said and done (CDN $). I can tell you that the car really pulls well now, much better then without the headers/cats. Netted approximately 15 whp. I feel that headers/cats are an excellent modification for the money.

Defin worth the cash! I'd like to compare TP's soon. Only reason i didn't go that route is fear of failing inspections. I don't know any shops willing to risk thier necks to hook a brother up with a sticker!
I just bought mine from Stillen. 304 stainless headers and Cats came to around $1,300 when all was said and done (CDN $). I can tell you that the car really pulls well now, much better then without the headers/cats. Netted approximately 15 whp. I feel that headers/cats are an excellent modification for the money.
Not to sure where you're getting your numbers from but I'm of the mind that every hp I can squeeze out of it is valuable. Headers and cats are worth it.
If you think $1,300 for 15whp is pricey wait till you see what I have to pay for the next NA 15whp
If you think $1,300 for 15whp is pricey wait till you see what I have to pay for the next NA 15whp



