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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 07-03-2012, 12:37 PM   #181
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Quote:
Originally Posted by Leafy View Post
soviet, you should check out your decel fuel cut settings, looks like its entering it with the clutch in, which it shouldnt.
orly, clutch switch is used for something other than launch control? mine isn't wired in.
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Old 07-03-2012, 12:39 PM   #182
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accelerometer data?
30-50? 2nd gear starting at 20 WOT and then 25 WOT and 30 WOT
30-70? 3rd gear starting at 20 WOT and then 25 WOT and 30 WOT
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Old 07-03-2012, 12:43 PM   #183
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Quote:
Originally Posted by Techsalvager View Post
accelerometer data?
30-50? 2nd gear starting at 20 WOT and then 25 WOT and 30 WOT
30-70? 3rd gear starting at 20 WOT and then 25 WOT and 30 WOT
acceleration data: my passenger shuts up at WOT.

2nd gear WOT @ 20mph = spin wheels
3rd gear WOT no wheel spin and pulls very hard. I could datalog it for you if you want.
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Old 07-03-2012, 12:48 PM   #184
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yeah if you can get it timed with accelerometer data to look over.
Also I'ld like to see how 5th gear from 2k rpms wot acceleration is.
what rear end do you have?
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Old 07-03-2012, 12:59 PM   #185
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Just take the slope of the mph graph from that data log. Grab the mph data from that log in a .csv and graph the slope of it.
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Old 07-03-2012, 01:05 PM   #186
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Just take the slope of the mph graph from that data log. Grab the mph data from that log in a .csv and graph the slope of it.
to do what?
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Old 07-03-2012, 01:33 PM   #187
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Get acceleration. Course it would need a unit conversion because that would give you miles/hour^2.
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Old 07-03-2012, 01:39 PM   #188
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Quote:
Originally Posted by Miater View Post
Skip shifting is whats hot in the streets. Keeps the revs down where ya want'em.
I can do the "skip shifting" thing too


virtually whole track in 5th gear.
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Old 07-03-2012, 02:04 PM   #189
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Quote:
Originally Posted by Techsalvager View Post
I think it would be great for the track, but not for street or autocross.
lol. Soviet's car makes more low-end torque than any other turbocharged Miata in the country. If you aren't satisfied with his torque curve, then your goals are not feasible with a BP engine.
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Old 07-03-2012, 02:21 PM   #190
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Probably should share this here too:

There's a website called SquirrelPF.com that has a pretty handy useful turbo calculator. I punched in a couple numbers you can see here = 200 hp, start spooling at 1800 RPM, maximum boost at 2500, and a 6000 RPM redline so we don't fry eggs on the intake manifold. Then I plotted the resulting airflow on a GT1544:



That dot where it's crossing the 70% line and dropping? It's at 4000 RPM.
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Old 07-03-2012, 03:06 PM   #191
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in for GT15 build lol
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Old 07-03-2012, 10:29 PM   #192
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I don't think any of the GT turbos are good options
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Old 07-03-2012, 10:38 PM   #193
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soviet forgot to ask but do you have a G-G of car from the event?
Also I didn't notice you had a 6 speed, 6th gear WOT at 60mph?
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Old 07-04-2012, 02:35 AM   #194
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In for the 270kmh on the dyno.
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Old 07-04-2012, 02:45 AM   #195
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Wait, why do you care about 6th now?
I thought it was all about 1st and 2nd dawg
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Old 07-04-2012, 11:33 AM   #196
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Quote:
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Wait, why do you care about 6th now?
I thought it was all about 1st and 2nd dawg
yes because I'm always in 2nd gear everywhere I go.
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Old 07-04-2012, 11:37 AM   #197
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i tuned for 1st gear. so i get the most power under 2K.
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Old 07-04-2012, 03:51 PM   #198
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By the time you hit 2k, you should already know if you won!
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Old 07-04-2012, 04:09 PM   #199
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GT2259
HX30
K03
k04

These turbos seem to be in the area I'm looking for.
I'll probably start with trying to get the hx30 first since its a t3 frame turbo
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Old 07-04-2012, 04:48 PM   #200
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Honestly, for ~$150 you should try the 50 trim churbo I'm running to give it a shot before doing anything else. it'll bolt right in.
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