Turbo Size Comparison

Here's a comparison chart of turbo compressor wheel and turbine wheel. Not necessarily sorted by size and power.

I did not list the horsepower rating of the turbos. It depends many variables. I only listed the compress flow in CFM. Some cfm listed are max flow. Others are listed at 2 pressure ratio (PR) or at 14.7psi at sea level. As new turbo kits coming out, if you have the specs (major and minor of compressor and turbine wheels) and compressor maps and want to post them here, send me an email.

Note: some turbos come as a bolt-on kit. Some do not, marked by '*'. Specs are not limited to the chart listed below for those none-bolt-on turbos.

Disclaimer: Greddy modifies Mitsubishi turbos. Due to lack of factory data, all Greddy turbo specs here are referenced using Mitsubishi specs. It may not be accurate.


Turbo	Compressor					Turbine
Turbo	Wheel Trim map avail	Inducer Diameter (in./mm)	Exducer Diameter (in./mm)	Housing	CFM	Wheel Trim	Exducer Diameter (in.)	Inducer Diameter (in.)	Flange style, Housing size
Stock TB02/22	T2	1.57"/40mm	2.02"/51mm	TB22	304 max	T22 69	1.53"/38.9mm	1.85"/47mm	T25
Garrett T25	T25 60	1.66"/42mm	2.14"/54.4mm	TB25	405 max	T25 62	1.64"/41.7mm	2.09"/53mm	T25
Garrett T28	T3 60	1.83"/46.5mm	2.37"/60mm	TB03	448 max	T25 62	1.64"/41.7mm	2.09"/53mm	T25
JWT 500		1.53"/38.9mm?	2.06"/52mm?	TB22		T25	1.59"/40.4mm	1.83"/45.7mm	T25
JWT 530BB GT25R/GT2554R	GT25R 60	1.65"/42mm	2.14"/54.3mm	GT25R		GT25 62	1.64"/41.7mm	2.09"/53mm	T25 .64 A/R
JWT 600	T3? 60?	1.83"/46.5mm	2.37"/60mm	TB25			1.86"/47.2mm	2.09"/53mm?	T25
JWT 650	T3 63	1.89"/48mm	2.37"/60mm	T3	506 max	T3	1.86"/47.2mm	2.09"/53mm	T25
JWT 700 BB GT28RS/GT2860R	GT28RS 62	1.86"/47.2mm	2.37"/60mm	GT28RS	535 max	GT28 76	1.85"/46.9mm	2.09"/53.9mm	T25 .86 A/R
GT2871R	GT2871R 48	1.94"/49.2mm?	2.79"/71mm?	GT28RS	599 max	GT28 76	1.85"/46.9mm	2.09"/53.9mm	T25 .86 A/R
PE 1420	? 57	1.79"/45.5mm	2.37"/60mm	?	494 max	P20 84	1.73"/44	1.89"/48mm	?
PE 1820	? 55	2.07"/52.5mm	2.76"/70mm	?	635 max	P20 84	1.74"/44.7	2.047"/52mm	?
Greddy TD04H-15C	15C 55	1.65"/42mm	2.187"/55.5mm	TD04		TD04H	1.74"/44.7	2.047"/52mm	TD04H 3bolt
Greddy TD05-16G	16G 60	1.83"/46.5mm	2.236/57mm	TD05	520 @2PR	TD05H	1.93"/49mm	2.20"/56mm	TD05H 6,7,8cm2 3bolt
Greddy TD05-18G	18G 50	1.99"/50.5mm	2.68/68mm	a*	? @2PR	TD05H	1.93"/49mm	2.20"/56mm	TD05H 6,7,8cm2 3 bolt
b* Greddy TD06-20G	20G 60	2.07"/52.6mm	2.68"/68mm	TD06	685 max	TD06S	2.17"/55.1mm	2.56"/65mm	TD06S 8,10cm2 3 bolt
HKS GT2530	GT28RS 63	1.90"/47.7mm	2.37"/60mm	T3 63	477 max	GT25	1.85"/47mm	2.12"/54mm	T25 .64 A/R T3
HKS GT2540	T04E 46	2.1"/51.7mm	3"/76mm	To4E 46	564 @2PR	GT25	1.85"/47mm	2.12"/54mm	.64 A/R
b*HKS GT2835 d*	GT35 52	2.01"/51.2	2.79"/71mm	GT35	608 max	GT28	2.01"/51.8mm	2.23"/56.5mm	T25 .61, .73
c*HKS GT3037 d*	GT37 52	2.17"/55mm	3.00"/76mm	GT37	709 max	GT30	2.16"/55mm	2.36"/60mm	T25
Garrett GT3071R	GT37 56	2.08"/53mm	3.00"/71mm	GT37	694 max	GT30	2"/50.8mm	2.22"/56.5mm	T25 flange .86 A/R
Garrett GT3076R	GT30R 56	2.24"/57mm	3.00"76.2mm	GT37	752 max	GT30	2.16"/55mm	2.36"/60mm	T3flange .82, 1.06 A/R
*Turbonetics T3/To4B	To4B S	1.90"/48.2mm	2.75"/70mm	To4B S	520 @2PR	T3	2.05"/52.1mm?	2.35"/59.7mm?	T3
*Turbonetics T3/To4E	To4E 60	2.29"/58.2mm	2.95"/75mm	To4E 60	650 @2PR	T3	2.05"/52.1mm?	2.35"/59.7mm?	T3

a Apperantly some TD05-18G kit has just the bigger 18G wheel inside a TD05 compressor housing while other TD05-18G has bigger 18G wheel and TD06 compressor housing.

b Pentroof of Japan offers kit for TD06 and 2835 for Z32s. Custom made to your specifics.

c Escort of Japan offers streetable kit of HKS GT3037.

d HKS offers the 'R' version of 2835. 2835R has bigger 100mm compressor inlet. Also, there's a 'S' version of 3037. 3037S also has bigger 100mm compressor inlet. The Pentroof 2835 kit is the regular version with 70mm inlet. The pro version uses internal wastegates.