Turbo Kits and Compression

[Jccck]

So it's not long til i order my turbo kit.. And i've heard mixed information in regards to compression.. Hoping you guys could clear it up for me

Basically i want to run 7-10 PSI, will i or won't i need to change the compression in my F22A?

If no, what level of boost can the F22A (stock internals besides Stage1Cam) handle up to, i heard rumours of 14 PSI before stuff starts to break

If yes, can i run a small level of boost (Say 5 PSI) on stock compression but need to alter the compression to increase boost?

All help appreciated~

[F22Turbo702]

Stock compression for the F22a is 8.8:1, very boost friendly. 10-12psi on a T3/T4 will be very reliable for daily driving with a good tune.

You shouldn't be as concerned with psi but rather airflow. A small 14b turbo is going to flow far less at 10psi than a T4 at the same pressure.

I wouldn't worry about changing the compression ratio, as long as the motor is in good condition you shouldn't have any issues.

-Kyle

[WiKKeDV16]

now when you say order my turbokit.. were exactly are you getting it from...

be informed with the downfalls of a ebay turbokit if thats what your looking at

[Pazzword JDM]

i heard 6-12 psi on an F22a

[Jccck]

now when you say order my turbokit.. were exactly are you getting it from...

be informed with the downfalls of a ebay turbokit if thats what your looking at

I'm buying an eBay kit, yes (Unless i can find a better alternative, sofar no).. And replacing the Wastegate and BoV's straight away
In time i'll replace the Turbo aswell, but there's no hurry.. If it blows on me it won't damage anything much, unlike the BoV and Wastegate

[pedroalcala]

I'm buying an eBay kit, yes (Unless i can find a better alternative, sofar no).. And replacing the Wastegate and BoV's straight away
In time i'll replace the Turbo aswell, but there's no hurry.. If it blows on me it won't damage anything much, unlike the BoV and Wastegate

That eBay turbo will do you no good at all, turbofan won't last long, wastgate is trash, so is the BOV, piping, exhaust manifold....the only good thing on those kits are probably the intercooler....other than that, its no good. later

[WiKKeDV16]

That eBay turbo will do you no good at all, turbofan won't last long, wastgate is trash, so is the BOV, piping, exhaust manifold....the only good thing on those kits are probably the intercooler....other than that, its no good. later

You definetly sound like the crowd of people that bash these kits without actually ever messing with one head-on..


To correct your false statements..let me say this..


The ebay kits arnt entirely bad..if your willing to overlook the manufactures lack of quality control when making these parts..

The wastegates arnt bad..its the underpaid moron who assembled it..that's bad..

Most of these things either come with dual springs(14+psi) or the diaphram isn't seated properly from quick assembly..

Same goes for the bov...sometimes dual springs are used..when its not needed as most won't be running the psi to require dual spring(help keep the bov from bleeding boost)


The tubulat manifolds are garbage...

The cast manifolds on the other hand are not..they work very well surprisingly

The piping..well its aluminum pipe..really? Cmon...

The couplers..arnt the best..but will work when clamped properly

The tbolt clamps...work..but don't go he-man on them..or they will break..

Lastly and most importantly..the turbo..

Their usually hit or miss..but even the "miss" turbos..just usually require a properly torqued down shaft nut..to eliminate the excess vibrations under operation..as I've received a kit(for a customers install) and the compressor bolt was hand-tite..some loc-tite and a proper torque sequence and she was back in business..and is still running today on a SR swapped 240sx..running 15psi daily..

Longevity? Its all on how smart you are about things..the journal bearings on these things are by far up to par..but will work and get a good lifespan if treated like a puppy...meaning proper cool down after hard runs(turbo timer)..regular oil changes..(duh)..and most importantly..an oil restrictor..to decrease the psi the CHRA is seeing..thus increasing the lifespan of the rear and front seals..from blowing out and destroying the turbo..

Hope this helps..

.02

[musteredonme]

You definetly sound like the crowd of people that bash these kits without actually ever messing with one head-on..


To correct your false statements..let me say this..


The ebay kits arnt entirely bad..if your willing to overlook the manufactures lack of quality control when making these parts..

The wastegates arnt bad..its the underpaid moron who assembled it..that's bad..

Most of these things either come with dual springs(14+psi) or the diaphram isn't seated properly from quick assembly..

Same goes for the bov...sometimes dual springs are used..when its not needed as most won't be running the psi to require dual spring(help keep the bov from bleeding boost)


The tubulat manifolds are garbage...

The cast manifolds on the other hand are not..they work very well surprisingly

The piping..well its aluminum pipe..really? Cmon...

The couplers..arnt the best..but will work when clamped properly

The tbolt clamps...work..but don't go he-man on them..or they will break..

Lastly and most importantly..the turbo..

Their usually hit or miss..but even the "miss" turbos..just usually require a properly torqued down shaft nut..to eliminate the excess vibrations under operation..as I've received a kit(for a customers install) and the compressor bolt was hand-tite..some loc-tite and a proper torque sequence and she was back in business..and is still running today on a SR swapped 240sx..running 15psi daily..

Longevity? Its all on how smart you are about things..the journal bearings on these things are by far up to par..but will work and get a good lifespan if treated like a puppy...meaning proper cool down after hard runs(turbo timer)..regular oil changes..(duh)..and most importantly..an oil restrictor..to decrease the psi the CHRA is seeing..thus increasing the lifespan of the rear and front seals..from blowing out and destroying the turbo..

Hope this helps..

.02

damn good shit

[Jccck]

Thanks loads for the feedback, especially you WiKKeDV16!

I know i'm gonna love this project, and the results it'll give!

[WiKKeDV16]

Results I had were 251whp and 249wtq ebay t3/t4 turbokit with cast log manifold..@11psi

[Ander]

Remember you're prolly gunna need to get bigger injectors with the eBay kit.

[Jccck]

Results I had were 251whp and 249wtq ebay t3/t4 turbokit with cast log manifold..@11psi

Sounds alright, what other engine modifications besides the obvious?

Remember you're prolly gunna need to get bigger injectors with the eBay kit.

Ofcourse!

[WiKKeDV16]

Nothing..bone stock f22a6 with 210k on the ticker

[alb_accord]

You definetly sound like the crowd of people that bash these kits without actually ever messing with one head-on..


To correct your false statements..let me say this..


The ebay kits arnt entirely bad..if your willing to overlook the manufactures lack of quality control when making these parts..

The wastegates arnt bad..its the underpaid moron who assembled it..that's bad..

Most of these things either come with dual springs(14+psi) or the diaphram isn't seated properly from quick assembly..

Same goes for the bov...sometimes dual springs are used..when its not needed as most won't be running the psi to require dual spring(help keep the bov from bleeding boost)


The tubulat manifolds are garbage...

The cast manifolds on the other hand are not..they work very well surprisingly

The piping..well its aluminum pipe..really? Cmon...

The couplers..arnt the best..but will work when clamped properly

The tbolt clamps...work..but don't go he-man on them..or they will break..

Lastly and most importantly..the turbo..

Their usually hit or miss..but even the "miss" turbos..just usually require a properly torqued down shaft nut..to eliminate the excess vibrations under operation..as I've received a kit(for a customers install) and the compressor bolt was hand-tite..some loc-tite and a proper torque sequence and she was back in business..and is still running today on a SR swapped 240sx..running 15psi daily..

Longevity? Its all on how smart you are about things..the journal bearings on these things are by far up to par..but will work and get a good lifespan if treated like a puppy...meaning proper cool down after hard runs(turbo timer)..regular oil changes..(duh)..and most importantly..an oil restrictor..to decrease the psi the CHRA is seeing..thus increasing the lifespan of the rear and front seals..from blowing out and destroying the turbo..

Hope this helps..

.02

it's funny you say this. i have a few friends that turbo charged their f22a on their civic. they kept telling me that the only problem with the e bay turbos is that many people do not use an oil restrictor. i didn't know about the shaft nut, but hey i learned something new. lol....

[WiKKeDV16]

its just a precaution..yeah..oil restrictor is a must..and a good oil return..so that oil sumping never occures