Trackspeed Stage 2 VVT shortblock, EFR6758, E85, 452whp/427wtq@26psi. I'm scared.

Old 01-23-2018, 04:23 PM
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Originally Posted by sonofthehill
Hey Andrew, where did you get the original quick connect fittings you were going to use on the FPR before you decided to run the AN hose?

Were you going to make new quick connect nylon lines?
They were from Summit, I believe they're from Russell. Just a -6 male to fuel injection. The problem is that the stack height is too tall once you add a Dorman adapter, so I went to -6 unions and Vaporguard hose ends.
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Old 01-24-2018, 05:43 PM
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Thanks. I will play with it some, if I can't make it work, I'll just use the vapor guard hose and fittings too.
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Old 02-03-2018, 05:37 PM
  #143  
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Having driven mine at 30psi boost.. i think i know exactly how you felt when trying this for the first time Its insane!
The midrange at 2 bar boost is something else and makes the car almost undriveable. Mine made 430ish whp at 1.6 bar boost and 460nm at the hubs. at 2 bar i have never dynoed it.. but a lot more

congrats with the power it really is addictive.. boost pr TPS and gear is your friend and will make it easy to drive.
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Old 02-03-2018, 09:55 PM
  #144  
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Thanks I have been cruising it around at 220kpa on pump gas the last week or two, and I just turned it down to 210kpa. Having experienced the crazy power, it's fun to go back to a car that's a little more playful. Even at 220kpa it relies on the Racelogic TCS in 2nd gear a little too much. I am eagerly looking forward to someday being able to use boost by gear and boost by TPS at the same time - that will make a huge difference in the driveability on E85.

I may do some slicks, I may not. Still on the fence about that. The goal would be to go 10.99 but I'm still not convinced the car will do it with the existing suspension setup, and I'd rather not break a bunch of parts trying to get there. I could also do a voltage booster and ID1300s and break the 500whp mark. Or I could, you know, finish the damn intercooler kit before tackling those projects. Not enough hours in the day.
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Old 02-04-2018, 01:42 AM
  #145  
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I also generally run around 210-220 kPa with my set-up. Even without boost-by-TPS (but with the longer Quaife gearing) it's a pussycat to drive (but still fast as #^@!). One day I'll set up boost-by-gear but there hasn't been any particular impetus to do so. I've often wondered how my car would feel with your EFR system - would the earlier boost onset make the car even more fun or just less drivable.
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Old 02-04-2018, 04:07 AM
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why make so much power and then turn it down? pussies :P i like the challenge of driving this car, and with a decent set up boost control there really is no point in reducing the power. 400+ is fully streetable and tame, just dont go full throttle out of corners on cold tires in 4th gear expecting it to stay in line
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Old 02-04-2018, 12:20 PM
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Originally Posted by hf-mx5t
why make so much power and then turn it down? pussies :P i like the challenge of driving this car, and with a decent set up boost control there really is no point in reducing the power. 400+ is fully streetable and tame, just dont go full throttle out of corners on cold tires in 4th gear expecting it to stay in line
In a street car, longevity is a reason. Especially if you're still running the 6 speed and haven't done a transmission swap.
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Old 02-04-2018, 12:27 PM
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That's way less applicable in street cars than race cars.
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Old 02-04-2018, 01:07 PM
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Or track cars of any kind. Heat killed my Quaife tranny twice, while it's essentially bomb-proof on the street. Andrew's 6-speed appears to be surviving on the street, even with the boost turned up. If he's trying to break into the tens on a drag strip, I fear for his differential.
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Old 02-04-2018, 01:36 PM
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Wheelspin in every gear under 85mph is fun, but not all the time. I also legitimately daily drive the car, and 150 miles to a tank gets annoying
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Old 02-04-2018, 03:51 PM
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drivetrain is an issue.. but i fail to see how fuel milage suffers from higher power in normal use situations. i still get over 30mpg highway use (1500km back from the nurburgring) and power is well over 400
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Old 02-04-2018, 03:53 PM
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Originally Posted by hf-mx5t
drivetrain is an issue.. but i fail to see how fuel milage suffers from higher power in normal use situations. i still get over 30mpg highway use (1500km back from the nurburgring) and power is well over 400
On E85?
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Old 02-04-2018, 04:35 PM
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Originally Posted by Savington
The goal would be to go 10.99
I'd love to see this happen and I don't think it's an unreasonable goal at all with the power that thing makes.
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Old 02-04-2018, 05:19 PM
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Originally Posted by DeerHunter
Behold! Primitive Miata turbo tuner:

Hey look, it's Stephanie!
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Old 02-04-2018, 05:20 PM
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Originally Posted by sixshooter
Central Colorado does skew the US results a bit.
They're actually about 32 miles of the Utah border on the western side of the state.
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Old 02-16-2018, 06:07 PM
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Im late to the party but I just wanted to say that I didnt think this kind of power and spool were possible without being mutually exclusive. Not on a 1.8L anyway.

EFR is the MVP
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Old 02-16-2018, 06:53 PM
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What is the T5 gearbox that you speak of?
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Old 02-16-2018, 06:58 PM
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T5s were common in Ford Mustangs from the mid 80s to the early 2000s. That particular project has been shelved for now. Look at KMiata's BMW 5sp and 6sp setups for a good, available alternative.
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Old 03-20-2018, 02:30 AM
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Ours made similar numbers (not quite as good, your setup obviously runs awesome).

I take back what I questioned now Ive experienced it myself.

Dann
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Old 03-20-2018, 10:14 AM
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Originally Posted by nitrodann
Ours made similar numbers (not quite as good, your setup obviously runs awesome).

I take back what I questioned now Ive experienced it myself.

Dann
I'm really glad you did. And it takes a lot of guts to admit mistakes, so props to you on that.
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