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-   -   244hp, 199tq, 9psi problems... (https://www.rx7club.com/time-slips-dyno-128/244hp-199tq-9psi-problems-451569/)

Terrh 08-08-05 04:28 PM

244hp, 199tq, 9psi problems...
 
1 Attachment(s)
ok.. dyno tuned today... graph is below.

problems: HUGE boost falloff and turbo lag problems... redline boost was only ~6psi, midrange 9psi. Turbo wasn't spooling full boost till almost 4000RPM, and fell off really badly at 5500RPM...

mods are in sig.

Wankel7 08-09-05 12:45 AM

Well, it could be your tuning...

What did tune your SAFC to?

Do you have a chart of your AFR?

James

Terrh 08-09-05 10:53 AM

I made a thread in the 2nd gen forum about the problems, but thanks :D

AFR chart isn't really necessary, they were 10.8:1 EVERYWHERE after 5psi.

Wankel7 08-09-05 11:47 AM

10.8:1.....

Geez, little bit rich?

That could be hurting your boost.

James

Bukwild 08-09-05 11:53 AM

how new are the plugs?

Terrh 08-10-05 12:12 AM

I pulled the plugs and cleaned them the day before, trailings still looked brand new but the leadings are starting to show some wear... maybe 6000 miles on them?

they were in the jspec when I bought it but had NO wear on them at all.

Wankel7 08-10-05 01:25 PM

You didnt answer the question...

Why did you tune so rich?

Nismo Convert86 08-10-05 03:16 PM

yeah seriously 10.8 you can't be using all that fuel, your milage must be crap, and your egt's must be insane.

Terrh 08-12-05 10:52 PM

/I/ didn't do the tuning :)

milage seems to be fine, honestly though I don't pay any attention to it.

fixed the boost problems mostly... installed I/C sprayers... maybe I'll add a few more PSI. :)


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