I am wondering how accurate the results of Dyno2000 are when compared to real life gains. Like for instance tonight I got bored and I finally collected all the internal VQ30DE specifications and developed what I think is a pretty decent simulation (190 HP @ 5000 rpm and 216 TQ @ 3500 rpms with nominal timing, the HP is close but the TQ is off a bit due to the limits of the software when it comes to manifold induction simulation)

That said I added the JWT cams to the stock VQ30DE and got 238 HP @ 6500 rpm and 230 TQ @ 4500 rpm with nominal timing, next I added a high flow exhaust system 252 HP @ 6500 rpm and 238 TQ @ 4500 rpm with nominal timing, and finally I added the VQ35DE crankshaft and connecting rods which bumped displacement up too 3.3L (93mm bore X 81mm stroke with a 10.1 Dynamic CR with the JWT Cams) giving me 262 HP @ 6000 rpm and 259 TQ @ 3500 rpm with nominal timing.

The gains seem resonable to me, but there are some small things here and there. Like for instance I cannot compensate for the ME-VI or V.V.T. (VQ35DEs) due to the limits of the software. Also a full aftermarket Maxima exhaust shows more gains than 14 hp at the crank, a Y-pipe alone gives 15~20 Hp to the wheels; again limits to the software.

Anyhow what do you guys think about these results, good or bad? Another question that I have is the induction flow for the VQ30DE stock intake manifold. Right now on the software its set at 600 CFM @ 1.5 inHg, this seems to be close but im not sure; does anyone know what the exact number is? Also does anyone else on this board have this software? So we can compare notes and see if I left anything out.

- Joe

 

Bump

Wow no one has responded to the fact that Dyno2000 claims JWT cams give 48 HP at the crank over stock cams.

 

Well I don't know about 48...I don't even think that JWT claims them to be that high. I remember hearing 20-25 at the most, which again I cannot base on solid evidence since i don't have them or the money to find out at the moment. 22HP gain from an exahsut w00t! better be a y-pipe in there.

 

A Y-Pipe alone rarely gives 15-20hp at the wheel.

It's more like 10-13 at the wheel, whjich is about 15-20 at the crank.

IanS

 

I have the software and have played around with it, but it's hard to get it accurate. What did you use for the stock camshafts? I couldn't find that info anywhere, like exhaust and intake lift measurements?

 

Dumb question.
where can i get this software and how much is it??

 

Try this link

and make sure to use search next time.

 

Well 48 Hp was given with the data I entered, quite frankly I dont believe it neither but its a nice thaught. The full exhaust means it has everything such as better headers, Y pipe, aftermarket cat, and catback exhaust. But it only claims a 14 Hp gain with all those mods, again its the limitation of the software.

 

Opps I thaught it was 15~20 Hp to the wheels and like 30 Hp at the crank, my bad. Still the Y-pipe alone gives 15~20 at the crank by itself, the software doesnt have the ability to take into account the power lost to emissons control stuff. (IE Stock Y-pipe and cat) So it only claims a 14 hp crank gain with a full aftermarket exhaust. (headers, y-pipe, cat, and catback exhaust)

 

If you wanna buy the software its like 100 bucks, but the copy I have is from a friend who let me borrow his CD. Just use Google or MSN search and put in Dyno2000. You should be able to get the website and the current price list. Honestly for the VQ30DE its not worth it, this stuff was designed for older V8 engines that didnt utilize alot of newer engine technology and/or superior build quality like our car's engines do. All of the calculated gains are subjective. (Example Dyno2000 makes big power claims for ported and polished heads and intake/exhaust manifolds were for the VQ30DE there are very few to speak of because they're already there to begin with.)