If you are serious man, maybe we can coordinate this winter when my car is off the road. I need an excuse to go out to Cali. Just give me a place to sleep

We could split the cost of the dyno, I would be EXTREMELY interested in the differences. Since we are both running a simmilar turbo all of the custom components should swap over. We could run your turbo vs mine (p-trim) on each manifold, The connections and DP flanges are the same so I do not think It would be too hard.

Let me know if you are interested. We could do both runs the same day and the only variable would be the manifold. Especially if you are able to squeeze a 4" DP in with your setup.

 

Dude... that sounds like my type of experiment. You could stay at my place, i've got a nice spare room for ya. Would you bring your whole exhaust and manifold set up or just the turbo, exhaust mani etc?

 

I think I would only need to bring the:

1. Manifold
2. wastegates with dump tubes
3. Turbo, With drain tube.
4. Down pipe

I think that is it. the only "problem" would be mating the compressor outlet to the intercooler due to the different turbo placment, but I am sure we can figure that out.


What is nice is the turbos are similar except I have a P-trim so when swapping turbos on each manifold we would be able to see the difference the higher flowing turbine makes.

I would like to keep as many items form your setup the same as possible so we are only testing one variable.

For connections, if you do not make hardlines then I think the oil feed and water lines will work however I can bring fittings and hose just in case.

What is good is we both have dual pre turbo EGT's as well so we would be able to compare those numbers as well.

 

Vent the Wastegates out the front wing. Awesome manifold. I would want a long runner in my rx4 if I change my turbo setup

 

Vent the Wastegates out the front wing

Translates to out the front fender in case others don't know English English.

 

Oh **** I forgot to alter for the language barrier

 

The outcome I foresee is more power than your typical GT35R because you have the X compressor and also a less thermally efficient exhaust manifold that should flow well.

I think it will turn out similar to if you had just used a 1.0 or 1.15 T04Z but with a lot of extra engine bay heat.

 

We already know the Gtx series is more efficient than the older gt series.... That's why John and I bought it. the turbos are secondary to the exhaust Manifolds. The long runner won't be much less thermally efficient and long runners have benefits over shorties and vice verse.

 

I'm digging the uim. Not sure about the manifold but I hope it works out for you

 

Your exhaust manifold is new and innovative but your wastegate placement isn't optimal , I see terrible boost spike problems in your future.........still good luck with it!

 

Well...no offense but you ^ but your exactly one of the reasons i'm building this manifold they way it is. And that's to put certain people in their place.

 

https://www.rx7club.com/single-turbo...urbos-1007020/

You are very welcome even encouraged to 'prove us all wrong' by providing the test data. Then the decision about the boost rpm and throttle response being better can be made by a panel of your peers

 

i never said anything about throttle response being better than a short runner mani.. but i'm betting i'll see full boost by a certain rpm equivilent to a shorty. I'll have a slight decrease in throttle response but it won't be noticeable on the track or where I'll be putting any of the power down anyways so i'm really no so worried about it. But thanks for the link. It'll be quite useful

 

No offence taken ! I did not know that I would be out of place for seeing a "bad" design and commenting on it though ,.... Im sorry. From my severely limited exhaust manifold building experience ,I can guarantee that what I stated above will happen , because that mistake was made by me in the past , LOL , the resulting boost spiking problem was terrible ! so much so that I couldnt go past 4500 RPM!
I remember reading somewhere that good wastegate placement dictates that the gate be placed as close as possible to the high pressure area just before entry into the turbo and that it is very difficult to ask a gas molecule moving at 350 MPH through a pipe to suddenly change direction , this is why "good "placement means making the opening somewhere in the path of the flow to divert the gas to the wastegate opening .Page 2 of this link , http://www.turbosmartusa.com/wp-cont...owergate60.pdf , to TURBOSMARTS POWERGATE 60 manual may help to validate what I am saying , hope this helps.