20G difference
- Thread starter tylex
- Start date
James Thomas
"NO CLASS"
Re: 20G difference
Should be cast / stamped on the compressor cover. Post a pic and or measure the inlet / outlet. The ex. housing should be marked 14 cm (if all original). I'm sure several of the "20G" guru's will chime in also.
__________
James
Should be cast / stamped on the compressor cover. Post a pic and or measure the inlet / outlet. The ex. housing should be marked 14 cm (if all original). I'm sure several of the "20G" guru's will chime in also.
__________
James
It's just a six
Super Member
Re: 20G difference
20G does have a bigger inlet ID.
The compressor housing also has a large machined flat surface on the inlet side.
Bolt pattern for the wastegate actuator is different.
What P.N is stamped on the compressor housing?
Also what size is the turbine wheel hole,where the downpipe attaches?
20G does have a bigger inlet ID.
The compressor housing also has a large machined flat surface on the inlet side.
Bolt pattern for the wastegate actuator is different.
What P.N is stamped on the compressor housing?
Also what size is the turbine wheel hole,where the downpipe attaches?
Last edited:
![Quickstop [UK]](/data/avatars/m/5/5165.jpg?1570199786){kind=avatar}
Quickstop [UK]
Combating adversyty.
Re: 20G difference
Think this is a 20G
HTH.
Think this is a 20G
HTH.
JSM
Active member
Re: 20G difference
Inlet ID I will agree with, OD and the tube used (which is what most people measure) is the same.
It's just a six said:20G does have a bigger inlet ID.
The compressor housing also has a larger machined flat surface on the inlet side.
Bolt pattern for the wastegate actuator is different.
What P.N is stamped on the compressor housing?
Also what size is the turbine wheel hole,where the downpipe attaches?
Inlet ID I will agree with, OD and the tube used (which is what most people measure) is the same.
jwaller
Evil Genius/SyTy Guru
Re: 20G difference
this is def a 20g. the 20 g will have a straight rod for the WG actuator. the stock one has a bend in it.
the stock turbo has a 8 cast into the inlet of the turbine housing.
20g has a 14 cast inot the inlet of the turbine housing.
stock compressor wheel has single blades.
20g has a double row of blades.
Quickstop [UK] said:Think this is a 20G
HTH.
this is def a 20g. the 20 g will have a straight rod for the WG actuator. the stock one has a bend in it.
the stock turbo has a 8 cast into the inlet of the turbine housing.
20g has a 14 cast inot the inlet of the turbine housing.
stock compressor wheel has single blades.
20g has a double row of blades.
James Thomas
"NO CLASS"
Re: 20G difference
Ask and ye shall receive :tup:
_______
James
Ask and ye shall receive :tup:
_______
James
Quickstop [UK]
Combating adversyty.
Re: 20G difference
Hmmm....I asked about that ages ago :squint:
At least now I know for sure. Still don't know if it is busted - oh well - new GT35R here I come!!
Hmmm....I asked about that ages ago :squint:
At least now I know for sure. Still don't know if it is busted - oh well - new GT35R here I come!!
It's just a six
Super Member
Re: 20G difference
If you are going/trying to decide if you have a 20G or stock turbo,most people do not measure the OD of the inlet,you need to measure the ID to see if you have a 20G compressor wheel or larger.
(so, most people would not measure the OD,,,you need to measure the ID,,, correct?
JS Manufacturing said:
If you are going/trying to decide if you have a 20G or stock turbo,most people do not measure the OD of the inlet,you need to measure the ID to see if you have a 20G compressor wheel or larger.
(so, most people would not measure the OD,,,you need to measure the ID,,, correct?
It's just a six
Super Member
Re: 20G difference
My Sy made 386 HP @ the rear wheels (21 PSI) with a 20G turbo,but it has a 12CM turbine housing.
Tested on a Dyno pack dyno.
Stock 2100 RPM stall converter.
tylex said:
My Sy made 386 HP @ the rear wheels (21 PSI) with a 20G turbo,but it has a 12CM turbine housing.
Tested on a Dyno pack dyno.
Stock 2100 RPM stall converter.