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Subject Dyno Results @ JWT
     
Posted by Seb (Specialty-Z) on September 12, 2004 at 1:24 AM
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Message Well, I finally put on enough miles this week to push the car harder. Last night was the first night w/ the boost controller set to 100% duty cycle. I was hoping to hit close to 30 psi, but that was far off to say the least. The turbos only managed to put out a max of 24 psi. I was worried there was something wrong. Greg and I looked the car over this morning looking for any signs of boost leaks or a weak stepping motor on the controller. We found nothing wrong, but we were puzzled. Later we would find out that this was very common and typical out of an internal wastegate (This topic was discussed hevaily today w/ Jim & Clark). To make a long stroy short, we tried everything to make boost over 24psi @ the manifold. No luck, but no worries at the same time. I am sure Greg can ellaborate on why it is normal for it to only make this amount of boost pressure...I am way too tired to type it all out.

By the time winter rolls along and the humidity & heat disappears...it should make a couple of psi more. :)

OK, onto the details.
We used JWT's DynaPack, so the graph you will be seeing is different than the ones I have posted in the past. This graph is rather bland and no details are on it. You will all just have to believe me then I guess.
Air temp was around 95-100 degrees while dynoing, and humidity was sickly present disrupting the amount of air molecules to water molecules taking up precious space. You can tell I am tired...anyways....
We didn't do any sorts of tricks to come up w/ these numbers. We hate BS to say the least as most of you know. We are straightforward and always tell the damn truth. No intercooler spraying, no cooling down the car in between runs. Nothing. Just some good 'ole race gas, 24 psi, and Clark's magical mind.

A/F ratio was an average of 11.5 and base timing was set to 15 degrees. The car made 669 RWHP and 543 RWTQ. The graph only shows the HP figure and it shows the amount of boost the car made in relation to the HP curve. BLUE is power and green is manifold pressure (boost). Oh yeah....NO nitrous either. I am curious what it could make on higher boost and cooler weather. The higher boost part I can only dream of. The graph (visually) sucks sorry about that.



Clark




If you look closely you can see our inconel manifolds glowing red.
If that ain't testing for you....I don't know what is! See, I beat on my car for you guys! Drive it like you stole it! If you build it, beat on it.

Flames sparked up it got so hot, the wrapping on the compressor outlet was catching on fire.


Jim himself took the time to pour some holy water on the car.

That's all folks! We will be back on the dyno in the near future to give you a better graph on a DynoJet. Maybe we will get closer to that magical 700 #.

As far the nitrous went, we used JWT's spool up kit. Peak #s were the same, but the overall curve was huge! It is actually on that graph shown above, but it is way to faint to see it.

Click To Go To The Specialty-Z Website

     
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