Pics of my intake cleaning experiences.......
http://www.sr20-forum.com/gtir/57396-intake-clean-up.html
http://www.sr20-forum.com/gtir/57396-intake-clean-up.html
Sand blasted my intake mani
- Thread starter Madtec
- Start date
Looks great, sand blasting works really well when trying to remove that brown film that builds up on the internals of the block, also if you blast the internals of the throttle bodies for longer and then blast out the inside of the MAF as well you'll get much better airflow afterwards, good job 
dont forget to give the internals of the turbo a good clean as well, gets really mucky in there........
dont forget to give the internals of the turbo a good clean as well, gets really mucky in there........
Thanks, will surely coat them after, i have not reinstalled anything yet since my car is off the the paint shop now
I'd be very surprised if those throttle bodies ever worked properly again but they should look good....
After i sand-blasted the parts were soaked in a static tank to remove any fine sand particles that may have been left about the operation
Guess i will make a believer out of you once i put everything together
I did the compressor hsg and i am going with a blow thru hard pipe Z32 MAF setup.....thanks for the thumbs up, pics with i get my car backLooks great, sand blasting works really well when trying to remove that brown film that builds up on the internals of the block, also if you blast the internals of the throttle bodies for longer and then blast out the inside of the MAF as well you'll get much better airflow afterwards, good job
gtirx2
Active Member
I would at least fully strip the throttle bodys and clean them out mate,its asking for trouble if you dont!
I ported and sandblasted all my manifold in the past but made sure it was fully stripped and sealed up the best i could first,and even then it still seems a bit of a gamble,but tbh stripped they are not to hard to clean out.
I also think there are bearings in there which will not appreciate the sand.
I have also sandblasted the sealed manifold on my uno and thats been ok so far,but i also had to spend hours cleaning that out to be happy enough to use it.
Sandblasting does leave a very good finish though,although a little porous that loves oily finger marks lol.
Glass bead is an even better finish but i think the new one people like is aqua blasting, which i think is glass bead with water,that looks a very smooth finish.
I ported and sandblasted all my manifold in the past but made sure it was fully stripped and sealed up the best i could first,and even then it still seems a bit of a gamble,but tbh stripped they are not to hard to clean out.
I also think there are bearings in there which will not appreciate the sand.
I have also sandblasted the sealed manifold on my uno and thats been ok so far,but i also had to spend hours cleaning that out to be happy enough to use it.
Sandblasting does leave a very good finish though,although a little porous that loves oily finger marks lol.
Glass bead is an even better finish but i think the new one people like is aqua blasting, which i think is glass bead with water,that looks a very smooth finish.
The bearings are a sealed type so i was not to worried about them and i did inspect before and after and the free link movement was the same. I would rather do a extrude honed on the internal walls but that was way too expensive and the gains would be marginal at best; not trying to go crazy with my upgrades, just a simple disco and a custom IC piping and a front mount.
I did a sand-blast because that is what was available to me (free...) at the time, the external and internal walls had some build up so cleaning them as best i could before i reinstall is the best solution instead of leaving it the way it is...
I have not had much experience with glass or aqua blasting but they seem to be very good processes but not available to me at this time; if i had deep pockets hell yeah!!!
I did a sand-blast because that is what was available to me (free...) at the time, the external and internal walls had some build up so cleaning them as best i could before i reinstall is the best solution instead of leaving it the way it is...
I have not had much experience with glass or aqua blasting but they seem to be very good processes but not available to me at this time; if i had deep pockets hell yeah!!!
I was taking the piss, I wouldn't let any sort of loose abrasive anywhere near the internals of any engine.
Makaveli_se7en
Member
I really hope you didn't blast the internal machined surfaces on the compressor cover, its a great way to ruin compressor efficiency.
Probably because the last person who sand blasted his engine fucked it.
Makaveli_se7en
Member
Good, its not being overly cautious. I am an aerodynamicist for the largest manufacturer of heavy duty turbochargers and have seen back to back compressor maps showing the effect of blasting the profile and diffuser faces of a compressor cover.