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Post by Sabertooth on Sept 15, 2019 5:56:49 GMT -5
Speed density is the way to go when you're maxing out the MAF. Mines in a 2.75" pipe. On stock with a good setup, 8psi probably would do it. But on a simple setup, 15psi has been done to max it out too (eBay Turbo Lancer)
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Post by namelessfoe on Sept 15, 2019 10:14:32 GMT -5
Yeah, so switching to speed density will definitely allow you to push it further.
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Post by Sabertooth on Sept 15, 2019 19:35:02 GMT -5
Ohhhhhhh yeah. If my math is right, I should be able to hold 16psi at 8k RPM with it for a bit over 400whp with proper tuning
So far, it's proving that I can calculate spool of a turbo based on displacement and rpm fairly well. So hopefully it's still golden
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Post by namelessfoe on Sept 20, 2019 20:04:35 GMT -5
Any way to log to see if you are getting valve float creeping up to 8k?
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Post by Sabertooth on Sept 20, 2019 22:47:22 GMT -5
Broke the 1/4 mile GS record again. 14.2 @102 with a 270lb friend in the car beside me on street tires lol. 2.1 second 60'. I need some proper tires to get me down into that 1.8 60' territory...
Anyways, that was at 11psi. I had shit launches the next couple runs, but kept upping the boost. At 15psi I blew off my charge piping (oops) but the trap speeds were still over 100mph every pass. Tomorrow I'll see what I can salvage of the piping that blew off
As for valve float logging, not that I am aware of, but it also shows no symptoms
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Post by namelessfoe on Sept 22, 2019 7:23:59 GMT -5
Nice, didn't know if there was something direct, I know you can sometimes hear it, but usually on the dyno graph you can see it if you run through the 4 gears. Don't know how stock valve springs at twice the hp would work past the stock redline of 6,500.
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Post by Sabertooth on Sept 22, 2019 8:35:55 GMT -5
550hp has been done with a GT35 and FI/C
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Post by joshinator99 on Sept 23, 2019 18:53:22 GMT -5
Upsetting but neat at the same time. I went to the drag strip tonight, and ran 14.5 at 99mph. Turns out my slicks are circuit slicks, lol. I was doing 2.3 60' launches (every damn time), even after burnouts. On my street tires I was able to do 2.1 60', and they have far less rolling resistance than slicks. I was burning through 1st and 2nd gear tonight on them, where as my street tires hook in first usually. No 13s for me yet, but it'll come... On street tires even... I DID pull on a Focus RS with a catback, CAI, and stage 2 tune though. My MPH was better, but she had a 1.9 60' Still, an amazingly fun night and the first one out with the turbo GS. I can't wait until Michael has tuning support for higher power. I'm considering standalone ECU How much air pressure were you running in your slicks? I have a completely different animal obviously, but I aired my Nitto 305/35/20 drag radials down to 20 psi and was able to get a 1.59 60’ time en route to a 10.86@127. My coworker has a new Hellcat Challenger and decided to run the same drag radials. BUT, he tried to run them at 30 psi and proceeded to just spin off the line. So, getting the air pressure down can be a big deal.  |
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Post by Sabertooth on Sept 23, 2019 20:29:15 GMT -5
15psi hot was where I got the best launches of the night. Less and it didn't affect it at all. I started at 30, dropped from 35 down to 20, did a pass, dropped from 30 to 15, did a pass, dropped from 20 to 15, did a few passes where it would hook but not as well as my street tires.
They're not drag tires though, and they're 235/40/18. I never expected them to be GOOD drag slicks, but I did expect them to be drag slicks lol.
Streets are where I got the 2.1 60', but... I checked today with less excitement, and it was a 2.19. This thing needs traction. There's no weight over the nose, so the GT has a huge launch advantage.
I'm not gonna put much effort into making FWD hook though. No point to spend money on that when I'm looking to dump more than the entire cost to buy another eclipse into it next year
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Post by Sabertooth on Mar 20, 2020 12:29:53 GMT -5
The car is home, and drivable.
At 16psi, I was going leaner than I am comfortable with, so that's what I'm gonna say is the upper absolute limit of the stock pump on 565cc injectors. I'd like to make a guide showing how to do a Walbro 450 install, but so far, it would be an explanation on why it's such a bad idea more than anything
For a drop in pump, DW300c.
The reason the walbro doesn't work isnt because it's too fat (which it is, but that's a small problem). It's because of the different type of outlet. The DW300c outlet has a bubbled flare at the end, where as the walbro is barbed. That bubble is needed, as it's what pops into place and snaps the pump in. Without it, fuel won't flow from the pump to the inner section of the basket, which houses the regulator and siphon.
To make it work, my theory is that I can use a pair of NPT tees, and remove the inner guts of the basket. Overall, I'm only doing it because I had the pump sitting around, and didn't want to buy an external regulator, bus bar, relays, hobbs switch, AN line, and fittings to make my twin walbro 525 hat work, but I did have a Walbro 450 sitting on a shelf.
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Post by Sabertooth on Mar 20, 2020 19:43:52 GMT -5
Here's what I'm running with so far as my solution. It's an extra $15 in hose and $20 in fittings, but requires NOTHING to be modified of the stock basket. I may still need some more fittings, but we'll find out later on  |
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Post by cmturner on Mar 23, 2020 6:50:16 GMT -5
Awesome!!!
Keep me updated on this, cause eventually I'll have to upgrade from stock pump as well
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Post by Sabertooth on Mar 23, 2020 7:45:19 GMT -5
DW300C is your answer.
This mess of lines I made up is incredibly difficult to fit, and I think I keep pinching lines. I have no flow.
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Post by Sabertooth on Mar 24, 2020 12:42:37 GMT -5
I dropped the stock pump back in. Gonna do a DW300 (not the compact) and see if I can get that to work... I can get one of those cheap. It's 10mm longer than stock, but should still snap in place. If I need extra height, I'll throw in another hat gasket to raise it.
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Post by Sabertooth on Mar 28, 2020 9:39:18 GMT -5
Yesterday I got my braided brake hoses on the front, found out that evo 8/9 rear brake hoses are NOT the same (fronts will work, however) and got my evo 8 brakes on.  |
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