Edelbrock Cross Ram
I've been speed density, 2-bar and 3-bar for 3+ years now, and our temps can swing more than 30-40 degrees some days, and I have zero issues with my car or the tune.... and I tuned it myself. Car idles at 675, doesn't stall or buck or hunt for idle. Gas mileage is, well, decent if I stay out of boost. I'm not sure who tuned your car, but if you had issues, then that person didn't do a good job.
But the MAF itself is still a restriction.
Run a 6" tube into the MAF....and out of it.....and the effective diameter of the inlet is whatever the diameter of the MAF is....
Wow....can't believe this basic physical concept escapes you.......
KW
Run a 6" tube into the MAF....and out of it.....and the effective diameter of the inlet is whatever the diameter of the MAF is....
Wow....can't believe this basic physical concept escapes you.......
KW
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Joined: Nov 2003
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From: Norn Iron
Obviously the larger this goes, the more resolution will be lost especially at lower airflows.
I do my own tuning. The SD tune was working fine, I ran it for more than a year but it was not perfect enough. I'm very picky. Using the MAF alleviates a number of small issues, especially off-idle and transitions. And now I'll just weather the "find a better tuner, bro" comments. That's fine. I've done an open-loop SD, open-loop MAF and now a hybrid ol/cl MAF. I have long-term data from all the different ways you can use the factory computer, and the MAF clearly gives you better data to control day-to-day variables.
I'm not knocking you, but if you had gone to a closed loop SD setup, the car would have driven perfectly.
This. However, if you go too large your MAF signal will be so weak it won't be reliable. At that point you are better to go SD.
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Joined: Nov 2003
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From: Norn Iron
And for N/A, you dont even need SD. Many simply run using TPS vs RPM as teh main load parameter, with MAP only providing minor corrections if any at all which pretty much covers barometric adjustments
Most OEM n/a setups that do not use a MAF operate this way.
Most OEM n/a setups that do not use a MAF operate this way.
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PRI did not yield any further information. The guys working the booth were not every helpful either. Currently no plan for a cathederal setup from what they said, Price point around a grand, no solution for running the twin TB's included.
I like this for a friends turbo truck build, but the fact that they have not thought out an entire package is kinda silly. Should come with the harness to run the TB's...
I like this for a friends turbo truck build, but the fact that they have not thought out an entire package is kinda silly. Should come with the harness to run the TB's...
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Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
PRI did not yield any further information. The guys working the booth were not every helpful either. Currently no plan for a cathederal setup from what they said, Price point around a grand, no solution for running the twin TB's included.
I like this for a friends turbo truck build, but the fact that they have not thought out an entire package is kinda silly. Should come with the harness to run the TB's...
I like this for a friends turbo truck build, but the fact that they have not thought out an entire package is kinda silly. Should come with the harness to run the TB's...
From a safety point of view both blades must be fully monitored and independently controlled to ensure any discrepancies force a limp/safety mode.
So it needs a proper controller of some description.
But yes if they're selling the idea, it is stupid not to have a solution for it, or at least suggest where to get one.
I talked to a guy at PRI, He wouldn't take off the plenum from the runners to show me how they are made. He stated end of January for shipping these. He said they had loads of dealers ordering them and said the first batch would sell out. He stated $1500 price on them. Comes in silver, red, black plenums. He could not elaborate on the dyno sheet that they advertise (I told him it sucked and didn't tell us any real info).
I did try to get pics of the runner entrance. It appears between the runners there is a square looking cavity- some casting/design piece I could not make out.
I was excited for this, wishing for a $1000 price point. Edelbrock thinks this thing is gold. I feel it will be good, just may heat soak due to the cast alum of the unit.
I think I will wait and see how it works for others first.
I did try to get pics of the runner entrance. It appears between the runners there is a square looking cavity- some casting/design piece I could not make out.
I was excited for this, wishing for a $1000 price point. Edelbrock thinks this thing is gold. I feel it will be good, just may heat soak due to the cast alum of the unit.
I think I will wait and see how it works for others first.
It isn't, until you consider the $250 for another throttle body, $550 for the dual throttle body controller, $100ish for the duct work and filter.... At $2,500 you start approaching the price of a sheet metal intake that will beat it....
Sheet metal will beat it where? Above 5500rpm? Just saying, the intake hasn't even been released yet, so let's see what it does first in the hands of some shops, then we can decide if it's worth it.
Hell, unless they decide to make a cathedral port version, it's useless to me.
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Joined: Nov 2003
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From: Norn Iron
Sheet metal will beat it where? Above 5500rpm? Just saying, the intake hasn't even been released yet, so let's see what it does first in the hands of some shops, then we can decide if it's worth it.
Hell, unless they decide to make a cathedral port version, it's useless to me.
Hell, unless they decide to make a cathedral port version, it's useless to me.
Likewise about the cathedrals, although in my case I dont think it would every physically fit anyway
IMO there's always a lot of talk about how good sheet metal intakes are.....yet rarely any back to back proof where they've been tested.
But they sure look nice.