Boost gone bad. Blown 4G63 vids
05-04-2003, 10:16 AM
#11
1.5 BAR
Join Date: Dec 2002
Posts: 800
Re:Boost gone bad. Blown 4G63 vids
Good vid.
I went to the track yesterday and we had to wait a good half hour for the track to be cleaned up because a 7 bolt put a rod through the block.
Normally the engine can take it, it's just the tranny can't.
I went to the track yesterday and we had to wait a good half hour for the track to be cleaned up because a 7 bolt put a rod through the block.
Normally the engine can take it, it's just the tranny can't.
05-04-2003, 11:26 PM
#16
0.5 BAR
Join Date: Dec 2002
Posts: 64
Re:Boost gone bad. Blown 4G63 vids
I call BS...10psi is 10 psi....both turbos need to flow the same amount of air to reach a certain psi at a given rpm. Granted one may provide a cooler air temp than the other....but for a certain psi/rpm they have to flow the same.
Mike
Mike
05-05-2003, 05:04 AM
#20
3.0 BAR
Join Date: Dec 2002
Posts: 3,828
Re:Boost gone bad. Blown 4G63 vids
18 psi with a T25 to 18 psi with a big T3 or whatever aother bigger turbo isn't the same.
It's all about CFM's and efficienty.
At 18 psi the T25 Already passed it's efficient mark and is only blowing extra Hotter air...less oxygen in air and less air cause the hot air is less dense...heat makes air expend..that's more pressure , but it has less oxygen then a big T3... A big T3 is more efficient at 18 psi less hotter air .. more oxygen in the air and more air.
If you look at the compressor maps you can see where the turbo is more efficient.
It's all about CFM's and efficienty.
At 18 psi the T25 Already passed it's efficient mark and is only blowing extra Hotter air...less oxygen in air and less air cause the hot air is less dense...heat makes air expend..that's more pressure , but it has less oxygen then a big T3... A big T3 is more efficient at 18 psi less hotter air .. more oxygen in the air and more air.
If you look at the compressor maps you can see where the turbo is more efficient.
