the overdrive itself is not undergoing any modification. we will be including a replacement bracket for the stock vacuum pump cover plate soon with the kit and will also be sending them out to any previous purchasers upon request.
Ad: Spool Helix HPFP overdrive Kit
- Thread starter SpoolPerformance
- Start date
After spending a grand, yeah, we're owed a functional product. Without tables it's a hunk of metal. Hoping this is put to bed asap.
This won't work at all without the tables? Is that a factor of the overdrive speed? Why does the shotgun not need tables to provide benefit?
I'm sure it will "work" but not at the power they're advertising (600whp on e85) without the changes (which according to Jake I think? are more than just the valve control stuff).
The shotgun does need correct software to run correctly
So the shotgun has never been a way for increased di capacity until now, with tables that were only updated in cooperation of a competing product?
No, like you said, these just might enhance the operation of the shotgun further. This is more work than just what's been developed for the shotgun, if I'm reading in between the lines correctly.
Without tunes, you encounter insufficient inlet side flow to the pump at the 72psi these cars run. This is due to the valve opening capped at a certain value from factory since the pump was never going to see inlet flow demands like this unless it is overdriven. Doesn’t matter what method you choose to overdrive you run into this limitation at around 500whp worth of flow on full e85. The tables allows the valve to open more and get around the inlet flow limitation without having to increase inlet side pressure. It will benefit the shotgun users as well. Ideally running higher pressures say a 100psi on low pressure side will help even more
Did your overdrive arrive from the preorder already? I was under the impression they barely shipped out. You're awfully upset, how long have they made you wait?
I was looking over Dac's pics of the N55 HPFP,
What's that extra vacuum port for?
What's that extra vacuum port for?
How would we go about getting more pressure on lpfp? Wouldnt an external regulator just mean the ekp will limit more or would the bpm 4 be programmable or is the stock one ? I simply don't really know alot besides my bucket assembly as far as low side
For me, and most on a 2 pump system / Hobbs.
Once the second pump kicks in the low pressure hits 100psi (above, the sensor limit is 100psi).
The moneybags bpm4 won't (shouldn't) do this.
Nice I think the bpm4 is a great piece of technology but its 10yrs to late . Would sold great with some AR downpipes and then dinan could made a e85 package lmao. But in reality it's just alot of money that could go to fuel system but I guess it could have its place idk.
Its only the first extra 200hp that only costs a couple of thousand.
Then it goes up to thousands for every bit of hp.
Better DAMOS are out there but you have to pay for them. Those companies who have them paid for them and are under no obligation to provide them. That said, all the initial XDF work I did was with the freely available pre-production DAMOS.
The GM ECU you speak of, how many tables did that have? Because I don't see anyone sitting down and doing all 25k+ MSD8x, and then doing it 3 MORE TIMES to cover all 4 roms, as the good DAMOS only covers one. And that's being generous and assuming all tables exist in each rom, that the axis sizes are the same, and that the data is close enough to hex match. But it isn't. Much logic was rewritten going from I8A0S to IJE0S, and then again with the jump to [IKM0S and INA0S]. Table sizes increase, tables were dropped, tables were added. Then there's some shared axis whose values exist 5+ times in the calibration area. Which one maps to which table? The only reliable way to trace these kinds of things is in IDA.
As for the Helix changes...I sent a few of what I had from the past to @Sbrach along with some ram addresses to aid in the tuning. He then dug up the rest of what was needed himself.
