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Is This Safe?

Resigned R32

By Resigned R32,
in Engines & Forced Induction

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Resigned R32 Contributor

Resigned R32

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Posted (edited)

Its a 1993 Rb20DET silver top

post-77521-1288864619_thumb.jpg

I had 3 inch exhaust system and pod everything else was stock far as i know.

Is this safe to be running that amount of psi and power with a stock RB20, also is it spiking cus it goes from like 12.5psi to 10psi why is that i really need help as i dont know about this stuff other engine stuff is easy please any help would be great cheers.

Josh

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Trozzle Grand Master

Trozzle

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I'm not sure about what the standard RB20 turbo can handle, but as long as the AFR's are fine then there's nothing wrong with that.

The power does look a tad low though, but that might be because it's still the standard RB20 turbo, which is small :D

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battery Mentor

battery

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yeh thats normal and safe.

i was running 1 bar(14.7psi) through a stock rb20 turbo for 3 years and about 60000ks (had 124000ks on it already when i bought it) and it was still in great condition when i pulled it out.

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Resigned R32 Contributor

Resigned R32

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I'm not sure about what the standard RB20 turbo can handle, but as long as the AFR's are fine then there's nothing wrong with that.

The power does look a tad low though, but that might be because it's still the standard RB20 turbo, which is small :D

Ill have to re dyno it soon got a FMIC on it now try boost worx and see if they can help me out and check the AFR. lol ya i know i want 180 rwkws xD

yeh thats normal and safe.

i was running 1 bar(14.7psi) through a stock rb20 turbo for 3 years and about 60000ks (had 124000ks on it already when i bought it) and it was still in great condition when i pulled it out.

Really 1 bar whoa nisstune or standard tune? i thought you can detonate the engine at 13psi? ppl keep telling me 7psi is standard tho is hell annoying to get a straight answer argh = (

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Resigned R32 Contributor

Resigned R32

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can detonate the engine at 0psi or 100psi, boost is mostly irrelevant. rb20s run 10psi standard, rb25s are 7psi.

and that boost and power is not going to hurt a rb20

so it is 10psi thanks. Heaps of ppl keep saying standard is 7psi, was scarying me = (

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battery Mentor

battery

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people run 16psi through the stock turbo for years and have no issues.

they dont really make much power over 14psi so i say run it at that and if it blows well its only gonna cost you $100 and half a day to replace one.

if your worried about detonation its best to get the AFR's checked on a dyno which depending on where you go will cost between $60 and $100.

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Resigned R32 Contributor

Resigned R32

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people run 16psi through the stock turbo for years and have no issues.

they dont really make much power over 14psi so i say run it at that and if it blows well its only gonna cost you $100 and half a day to replace one.

if your worried about detonation its best to get the AFR's checked on a dyno which depending on where you go will cost between $60 and $100.

I think im gonna book to see boost worx this monday to tune my fmic and check everything isnt pinging thanks for your help = )

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Rolls Grand Master

Rolls

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rb20s will run up to 13psi just off the spring depending on intake/exhaust mods, 13psi dropping to 9 in the top end is fine if its been tuned and it looks like it has a decent one, fairly smooth.

Just make sure AFRs and knock is in check, power looks about right, usually see between 150-170kw with that boost and a tune, looks fine to me, 30 minutes on the dyno should confirm everything is fine.

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Brezza Proficient

Brezza

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Ill have to re dyno it soon got a FMIC on it now try boost worx and see if they can help me out and check the AFR. lol ya i know i want 180 rwkws xD

Really 1 bar whoa nisstune or standard tune? i thought you can detonate the engine at 13psi? ppl keep telling me 7psi is standard tho is hell annoying to get a straight answer argh = (

Hey mate,

I reckon you should go and see Shaun @ Boostworx, he's a great tuner.

the graph doesnt really tell all that much? but i'm assuming that you're using a bleed valve to up the boost? if thats the case then the boost curve looks about right, i had a bleed valve on my GTR, it was peaking at 19psi then dropping to 18psi gradually like your's has.

i now have an EBC, it hold 21psi flat all the way to redline, but its cost me! for your aim's i'd say stick with the bleed valve.

as far as tuning goes, if you've still got a stock ECU then get a Nistune, they're cheap and probably best bang for buck ECU out there. I'm running one in my GTR and its great!

if you just wanna check that the car is running okay then throw it on a dyno and check AFR's and whether there is any knock. that's what's really going to kill your engine (excessive knock or lean AFR's)

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Resigned R32 Contributor

Resigned R32

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rb20s will run up to 13psi just off the spring depending on intake/exhaust mods, 13psi dropping to 9 in the top end is fine if its been tuned and it looks like it has a decent one, fairly smooth.

Just make sure AFRs and knock is in check, power looks about right, usually see between 150-170kw with that boost and a tune, looks fine to me, 30 minutes on the dyno should confirm everything is fine.

Ya im gonna go this monday at boost worx got it booked to make sure. Thanks for the info mate helped out = )

kinda hard to tell without a AFR graph whats going on.

looks ok though - you mention getting a tune with a FMIC - what ECU?

Standard ecu man

Hey mate,

I reckon you should go and see Shaun @ Boostworx, he's a great tuner.

the graph doesnt really tell all that much? but i'm assuming that you're using a bleed valve to up the boost? if thats the case then the boost curve looks about right, i had a bleed valve on my GTR, it was peaking at 19psi then dropping to 18psi gradually like your's has.

i now have an EBC, it hold 21psi flat all the way to redline, but its cost me! for your aim's i'd say stick with the bleed valve.

as far as tuning goes, if you've still got a stock ECU then get a Nistune, they're cheap and probably best bang for buck ECU out there. I'm running one in my GTR and its great!

if you just wanna check that the car is running okay then throw it on a dyno and check AFR's and whether there is any knock. that's what's really going to kill your engine (excessive knock or lean AFR's)

Ya ive booked it for monday to see him to make sure my car isnt pinging or spiking and to tune my fmic to the car. Also i dont have a bleed valve at all and standard waste gate which is weird

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