can we slow down the pointless posts guys?

 

I'm still working on street tuning mine, but I have noticed that boost taper is less. I'm running around 21 psi and boost tapers about 1 psi with this turbo vs. 1.5-2 psi with the stocker. Since holding boost seems to be where this turbo makes power, I'm slowly working on upping the boost while adjusting timing to keep detonation in check. Slow process with the UTEC given how much time I have to street tune.

 

Well it seems everyone is saying the but dyno is reading higher but i want more real data. Going to have to wait till all the Vishnu guys get going next weekend.

The only thing that concerns me right now is the people talking about the boost tapering off. This Turbo is capable of "700CFM" and it cant hold 22psi? It is one thing if it is "spiking" and then holding out the back at a steady boost level but if it's hitting the desired boost level and falling all the way to redline that is not what I am looking for.

 

what does cfm have to do with how much boost it can make or hold?

 

If this turbo cant hold at least 24psi at 7500, I think I will just put in the gt3076.

 

Remember that due to the turbo's different flow rates, how many psi it holds is not the end all "spec" to look at... just wait for some numbers and graphs.

 

boost and airflow are two different things, lets wait to see apples to apples comparison numbers

 

Hey Kila, I would look at the 35R if you don't get the rabbit. I've ridden in the same car with both turbos (35R and 3076R) and it is no comparison. You don't really gain anything in spool with the 3076 and you loose hp.

 

Or why is "Holding a specific pressure to redline" highly desireable?

 

I wonder how long it will take to see some actual dyno sheets?

In order to make 441 whp without cams - IMHO - it would have to reach at least 30 - 33 psi of boost on that turbo.

I guess more patience is in order

 

I thought you were tuning some WRs?

 

I wonder who you're talking about? But yes, I would highly urge you to consider the GT35R over the 3076!

 

Good point - especially if in more cases 20 psi is the most boost avisable to hold on pump gas. Which coincidentally is how much boost the stock turbos usually hold at the higher end of the power band.

Personally I do NOT care if the WR can make more power with MORE boost.

What I would like to see is it making MORE power on the SAME boost - e.g. 20 psi

Being able to hold a few more psi of boost and make a bit more power up top is not very helpful to those who run pump gas and who should not be running 23 or 24 psi.

In order to do a real meaningful test of this turbo vs. the stock one it would have to be done at the same boost levels.

Also - just to note that many stock turbos are capable of making a lot of boost. We have seen them reaching 30 psi of boost and 400 whp.

 

Agreed the 3076 is not a good choice

 

How so?