Fast Intentions Stage 2 TT build by MA-Motorsports.

Spooler

I was on a 3 port before. The 4 port is an upgrade and will decrease duty cycle which will allow me to keep my 12psi wastegate springs.

Spooler

If you want to know the rule of thumb behind the wastegate spring it is this.

3 port MAC valve:
12psi boost on wastegate spring = Max boost around 24psi. You double it.
I was at 70% duty cycle on the MAC valve at 25psi before.

4 port MAC valve:
12psi boost on wastegate spring = LOL, I have no idea. Guess we will find out.

Spooler

The wastegate springs may limit me. The engine may have to come out to change those. LOL WTH

Spooler

Well, as most good tuners are, Nick is backed up. My car is not a normal car so I need to grab my can of patience. I am sure he wants to tune it in piece and quite.

This boost junkie needs his fix.

Mr.Squeeze

In due time the beast will be unleashed

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Driven Motorsports Single Turbo 7675 T4 1.32 A/R 995WHP 780TQ

SeeThruHead

Yeah but you will lose granularity in the amount of adjustment you can make to boost pressure afaik. Curious how that will play out with your boost by gear. Subscribed to find out!

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Spooler

Did you read??? It is all about traction. I will gladly give to get.

One of the newest popular forms of racing spreading across the nation right now is “no-prep” type racing. In this type of racing it is more about traction management than it is about making monster amounts of power. These racers are often starting out with as little as 8 psi on the starting line, and wanting to finish the race with 40+ pounds, where the power can finally be put down at the end of the race track. A 3 port boost controller will not allow you to run a small wastegate spring and still obtain that level of boost pressure. This is where a 4 port comes into play. Yes the resolution of a 4 port isn’t as good as a 3 port, but having less resulotion isn't as much of a big deal when you have such a large spread from min boost level to max. For many racers the loss of resolution is easily worth the gain in min-max ability of boost . For street driven cars, especially FWD cars, this is a HUGE advantage. These big power street cars, or traction limited FWD cars, can go from being absolutely worthless burn-out machines to somewhat manageable.

SeeThruHead

of course i read it. I bet it's probably going to work really well. I would be interested in the psi change you get per duty cycle % if you're willing to share that information when you have it.

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Spooler

The duty cycle is going to go down.

Spooler

I am ready to whip up on some Hellcats, Corvettes, and Moostangs...

It's time to hand out some WTF moments like Solidius aka Al and I did once before.

SeeThruHead

not what i asked but

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Spooler

I did, Granularity is not a problem. This is not new.

Spooler

Doesn't look like it will be this week. Ugg, No fun.

Spooler

Still waiting on an all day slot for tuning. It may be a little while. 8-10hr tuning job takes some waiting to open up. If someone cancels, it will help. LOL, I beat that won't happen.

Spooler

Little birdy told me I will be on the dyno this afternoon and finishing up tomorrow sometime. Just maybe, it will happen if Murphy doesn't get me. I have no idea on the numbers. It may be 930whp or it may be 1000whp. Gonna find out what the next bottleneck is. In the realm of the unknown again.