EJ22 build again! Mad as hell :( What boost to run??
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EJ22 build again! Mad as hell :( What boost to run??
Thank you guys for helping me out so much with previous ej22t tech stuff.
UNFORTUNATELY................
It is an n/a EJ22! with some block guards. I only found out when i tore it down in the shop with a leaky head gasket. I'm really upset cos I was hoping for the reliability of the closed deck.
Worst thing is my turbo housing says VF37 but is some kinda hybrid internally so i'm lost as to whats going on for it.
Now I have 96.9mm Wiseco's on it but i'll assume the crank and rods are stock. Compression is healthy
Heads are from a ver 4 wrx and stock. condition is good. Running a 1.3mm metal gasket, anyone got a clue wat my compression is?
Scary part is bearings for timing belt have been modified to be adjustable in two areas (apparently running the belt off that might give unstable ignition timing) but thankfully my mechanic knows what he's doing and is changing everything back to keep my ignition more stable.
Sigh....Now i need to know what kinda boost I shoudl run for longevity to ensure I dont mess up the probably weaker conrods.
Any suggestions?
UNFORTUNATELY................
It is an n/a EJ22! with some block guards. I only found out when i tore it down in the shop with a leaky head gasket. I'm really upset cos I was hoping for the reliability of the closed deck.
Worst thing is my turbo housing says VF37 but is some kinda hybrid internally so i'm lost as to whats going on for it.
Now I have 96.9mm Wiseco's on it but i'll assume the crank and rods are stock. Compression is healthy
Heads are from a ver 4 wrx and stock. condition is good. Running a 1.3mm metal gasket, anyone got a clue wat my compression is?
Scary part is bearings for timing belt have been modified to be adjustable in two areas (apparently running the belt off that might give unstable ignition timing) but thankfully my mechanic knows what he's doing and is changing everything back to keep my ignition more stable.
Sigh....Now i need to know what kinda boost I shoudl run for longevity to ensure I dont mess up the probably weaker conrods.
Any suggestions?
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i see...well i'm at sea level and i always run 98 RON. i have a standalone ecu and usually my a/f runs pretty conservative. timing is slightly less than commonly used for longevity sake. so generally u think its ok to run the levels i want eh?dzx wrote:depends on elevation and fuel and such. I ran 19psi for a while and when I took the engine apart there were no signs of detonation. Some dirt got in the oil though and ruined a rod bearing.
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I am going to shoot for 20 psi once I get a turbo fabbed up.
I am running 7.5-1 compression but still on the open block......
I am running 7.5-1 compression but still on the open block......
Reddevil, Awaiting new heart, will it ever happen?
1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
1992 wagon, wifes daily, high compression
1992 Touring wagon, should I keep it?
1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
1992 wagon, wifes daily, high compression
1992 Touring wagon, should I keep it?
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Well,
You have got to remember that psi is not some sort of universally transferable thing. 20psi on a 16g is different than 20psi on a 20g which is different than 20psi on Douglas' supercharger. It's about CFM's and not the actual pressure...
You have got to remember that psi is not some sort of universally transferable thing. 20psi on a 16g is different than 20psi on a 20g which is different than 20psi on Douglas' supercharger. It's about CFM's and not the actual pressure...
1974 Porsche 914 Cam Am Limted Edition AKA the Bumble Bee
1973 Porsche 914 2.0 l -Suby swap pending
1968 Porsche 911t survivor 47k original miles
2000 2.5RS daily driver.
1999 2.5RS w/ 50+ extra whp
Suby Hai!
1973 Porsche 914 2.0 l -Suby swap pending
1968 Porsche 911t survivor 47k original miles
2000 2.5RS daily driver.
1999 2.5RS w/ 50+ extra whp
Suby Hai!
oops, i didnt know he was running an SC. yeah its about the CFMs indeed. Now i'm looking around for a VF37 flow map to figure out what i'm running proper. I hate mechs who mess up setups! If he at least ran a proper VF i could have an idea what sort of boost to run etc.Matt Monson wrote:Well,
You have got to remember that psi is not some sort of universally transferable thing. 20psi on a 16g is different than 20psi on a 20g which is different than 20psi on Douglas' supercharger. It's about CFM's and not the actual pressure...
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pressure from different compressors will be different, but CFM is not the right term. CFM is a measure of volume flow. What you want is a measure of density, which would be Lbs. or grams along with an indicator of volume. the result is density, normaly measured in kg/m^3 or lbs/in^3 this takes into account the temperature pressure and volume of the resulting gases.Matt Monson wrote:Well,
You have got to remember that psi is not some sort of universally transferable thing. 20psi on a 16g is different than 20psi on a 20g which is different than 20psi on Douglas' supercharger. It's about CFM's and not the actual pressure...
- Junior
90L Wagon EJ22E on Toyota CT-26 boost -- Crushed!
95L Wagon on T3/T4 boost :)
www.trdsupra.com [b][url=http://trdsupra.com/library/forsale/]Cheap parts![/url][/b][quote="Imprezive"]alright, I give up, I'm going to NASIOC...[/quote]
90L Wagon EJ22E on Toyota CT-26 boost -- Crushed!
95L Wagon on T3/T4 boost :)
www.trdsupra.com [b][url=http://trdsupra.com/library/forsale/]Cheap parts![/url][/b][quote="Imprezive"]alright, I give up, I'm going to NASIOC...[/quote]
yeah thats probably more accurate. thankfully i got myself one of those calculators that allow me to input density related information so the resultant lb/min flow will come out pretty spot on hehe.sammydafish wrote:pressure from different compressors will be different, but CFM is not the right term. CFM is a measure of volume flow. What you want is a measure of density, which would be Lbs. or grams along with an indicator of volume. the result is density, normaly measured in kg/m^3 or lbs/in^3 this takes into account the temperature pressure and volume of the resulting gases.Matt Monson wrote:Well,
You have got to remember that psi is not some sort of universally transferable thing. 20psi on a 16g is different than 20psi on a 20g which is different than 20psi on Douglas' supercharger. It's about CFM's and not the actual pressure...
thks for the headsup tho