Defined Autoworks 523whp 35r!!

[David Jerome]

Originally Posted by TitaniumTT

So what's you're plan when I get into town David? Hit up a dyno-pak and put that correction factor in to see where we land? I wouldn't be opposed to going to a drag strip either. I warn you though, I've never once drag raced so be prepared to laugh your ass off You sound like you have a cery good grasp of the different dyno's and how they measure everything, we'll have to chat about this in great depth. I just accepted that different tools measure things differently and left it at that as there was so much contradicting info on the net when I was looking into it years ago.

I figured we would go to the shop where I dynoed my fd. It is a dyno dynamics dyno. He can give us the "true" numbers then the adjusted numbers "True Xs 1.16"(16% correction factor). Im no expert on dynos, not by any stretch or do I study them. However, it is common knowledge that Dyno Jet dynos typically show 15% higher numbers than a Dyno Dynamics dyno with the original software. After a quick search (google), I found a post saying that the shop the OPs car dynoed at reads roughly 4% higher than a Dyno Jet(this coming from the shop itself). So that is a 19% correction over what a Dyno Dynamics(heartbreaker dyno) reads.

I hope when you meet me you arent expecting some genius automotive mind or something. Im very comfortable in what I do and focus on my business and keeping customers happy. Im not out R&Ding and trying to push the envelope. I know a decent bit about fds and how to keep them on the road, that is what I do. I dont pretend to have knowlege of something when I do not. My knowledge and info comes from real world experiences and not a class room and definitely not theories.

I know you probably wonder why I would make the comments I did in this thread and in yours. To me the numbers dont add up, not at the boost levels that are claimed anyways. There is one other person that has claimed 400rwhp on stock fd twins(truly stock twins) and he is the record holder for fastest times ever. 10.9 at 126 and that was with 402rwhp at roughly 19psi.

The drag strip is most accurate indicator of HP. We can race dynos all day, but the drag strip tells the story. If you know the weight of the car and the MPH it traps the power becomes pretty clear. Especially on a quick spooling setup with a broader power band, they will often trap slightly higher than another car with same peak power but laggier response.

Im not saying your car doesnt make 400rwhp or the OPs car doesnt make 5xx at 15lbs, I just want to see what happens when the cars go to a different dyno or run at the drag strip. If Im wrong I will be the first to admit it and gladly post it here for all to see or wherever else.

I dont make my living doing this work anymore, I do still make money but I keep doing it because I love FDs. I just try to keep as many FDs on the road as possible.