Racer X Intake manifold design, development, and results

[Bach415]

Originally Posted by NoHaveMSG

Me too, I have no E85 access So if the Beta testing can confirm similar power gains this would be a nice part to try.

I have e85 access but the difference for value is not that big at the moment. ~$.40 cent difference between 91 and e85. Car is DD and I rather have miles at the moment than fun since I commute 20+ miles a day. It's either 200 miles to the tank w/ e85 or 300 with 91.

If the power gains are good, then it's something I might consider as well but without a proper tune we can't fully judge.

Originally Posted by Lantanafrs2

The problem will be acquiring an ots tune. Shivs moving away from this platform and ecutek will be expensive.

True but it doesn't mean that we don't have any other contributors that can possibly make a generic safe OTS tune for it. It just takes a bit more time to do so.

[why?]

Originally Posted by PulsarBeeerz

Looks like its with a full exhaust. They used a Tomei UEL header and over pipe and what appears to be a Q300? catback and a catless midpipe from what was posted on IG. They need the help of Steve99 or Wayno to tune if they wish to stick with OFT. Everyone else shows results after a custom tune so its totally fair play.

I think the point is to use a simple tune anyone can grab. We all know Everyone can make more power with ECutek and a good tune. It is better this way because the results are more real world for everyone. I mean they could use an Ace header and all the best tack on aftermarket goodies to make their product look better too.

[PulsarBeeerz]

Originally Posted by why?

I think the point is to use a simple tune anyone can grab. We all know Everyone can make more power with ECutek and a good tune. It is better this way because the results are more real world for everyone. I mean they could use an Ace header and all the best tack on aftermarket goodies to make their product look better too.

No they used what they had available since OFT wasn't interested in helping develop a tune when they reached out to them.

[Jajanken86]

Originally Posted by Bach415

I have e85 access but the difference for value is not that big at the moment. ~$.40 cent difference between 91 and e85. Car is DD and I rather have miles at the moment than fun since I commute 20+ miles a day. It's either 200 miles to the tank w/ e85 or 300 with 91.

If the power gains are good, then it's something I might consider as well but without a proper tune we can't fully judge.


True but it doesn't mean that we don't have any other contributors that can possibly make a generic safe OTS tune for it. It just takes a bit more time to do so.

Sorry this is def off the topic, but how do you get 300 miles a tank? I get 190 miles on 92 gas

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[NoHaveMSG]

Originally Posted by why?

I think the point is to use a simple tune anyone can grab. We all know Everyone can make more power with ECutek and a good tune. It is better this way because the results are more real world for everyone. I mean they could use an Ace header and all the best tack on aftermarket goodies to make their product look better too.

I don't think it would be too hard to tweak a base OTS to the manifold, a lot of us have to do that anyway. My car would not run close to right with an OTS tune, LTFT was around -10%.

I know one of the beta testing requests was the car be dyno'd without the tune tweaked. That will be a good baseline to see how much benefit we can potentially see with just using an OTS tune vs currently posted gains.

@Jajanken86 I usually fill up at 11 gallons and get around 28-32mpg. If you are only getting 190 to a tank, that is just 17mpg.

[Lantanafrs2]

After using e85 for 2 years, I wouldn't want to drive the car on 93. I'm getting 21 mpg

[Bach415]

Originally Posted by Jajanken86

Sorry this is def off the topic, but how do you get 300 miles a tank? I get 190 miles on 92 gas

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Not too sure honestly. Probably the way I drive since it's been that way when I got the car early 13. I don't have a heavy foot. My old commute was 100% city driving and I averaged around 260-270 a tank at that time. My current commute is 90% city (~25mpg), 10% freeway(~32-35mpg). Averaging around 26-28mpg. Usually fill up about 11 gallons every time.

Not sure if my mods did anything to help it (despite threads saying it helps a bit) but listed below are my aero/tune mods.
Car mods prior - Velox/Verus front splitter, Nur spec front lip, Tomei type-80/80r catback, air filter, no tune.
Car mods at this current time - OFT Stage 1, air filter. Velox/Verus diffuser.

We can take this further in a different thread or thru pm if you like so we don't derail this thread like prior to the cleanup.

[Dr. BRZ]

Has anyone purchased one yet?

[Lantanafrs2]

Originally Posted by Dr. BRZ

Has anyone purchased one yet?

Thought you'd be the first?

[Dr. BRZ]

Originally Posted by Lantanafrs2

Thought you'd be the first?

I didn't get picked for the beta testing!

Argh........ So I guess I'll have to be the Guinea pig! Lol

[Lantanafrs2]

I think the fact that there are gains anywhere with this im is impressive, especially when considering past failed attempts. We're all just hoping a custom tune might make the graph look a bit better but really there are too many exhaust combos out there for an ots tune to be feasible

[NoHaveMSG]

Originally Posted by Lantanafrs2

I think the fact that there are gains anywhere with this im is impressive, especially when considering past failed attempts. We're all just hoping a custom tune might make the graph look a bit better but really there are too many exhaust combos out there for an ots tune to be feasible

I don't think it is too bad. I am not sure why everyone is so obsessed with low end power. This motor is really knocky at 3k rpm and under. As long as it pulls from 4k and up I am happy

[PulsarBeeerz]

Dirty overlay but..93 vs FBO 85. Not a bad result without custom tuning on a custom IM.

[Lantanafrs2]

Originally Posted by NoHaveMSG

I don't think it is too bad. I am not sure why everyone is so obsessed with low end power. This motor is really knocky at 3k rpm and under. As long as it pulls from 4k and up I am happy

That's a good point. Low end torque equals instant gratification but this is the wrong car for that