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T3T4 Turbo? Good idea?

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Old 06-08-2009, 07:56 PM
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T3T4 Turbo? Good idea?

Can anyone tell me anything about using a T3T4 turbo kit? I have an opportunity to buy a used one... What do I need to know to help me decide if its a good idea? Will my car suffer from turbo lag? Would I really get a big increase in performance? Will I need to spend money upgrading all sorts of other stuff so it doesn't damage my G?

Any advice, feedback, or suggestions would be great! Please take a moment to share some of your knowledge!

Btw, I have an 03 6MT DG coupe, with Amuse Titan exhaust, and AEM intake.

**Edit** Sorry, I'm a noob poster and accidently put this in the SEDAN section instead of the COUPE section... no idea how to move it..
 

Last edited by AxeKick7; 06-08-2009 at 08:04 PM. Reason: Posted in wrong section!
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Old 06-08-2009, 08:06 PM
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everything you need to know is in here:
https://g35driver.com/forums/forced-induction-24/

And even better info in here:
http://my350z.com/forum/forced-induction-182/
 
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Old 06-08-2009, 09:22 PM
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Is it just the turbo? WHat about supporting mods? Yes you will need some.

Turbo's require some pretty good knowledge in terms of how the system works and how to tune it. Without that, you run the potential of some serious engine damage.
 
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Old 06-09-2009, 01:39 AM
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There are 200 different types of t3t4's? That is just the housing sizes? find out what the ar. is on them and what mm? Also there are 46mm all the way to super60's Call or e-mail the seller and ask some of those question's and let us know buddy. Also the ar. is stamped on both sides of the turbo hot and cold side. t3 is the cold side and t4 is the hot side. hope some of this helps then we can figure out the comp map and see whats up.
 
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Old 06-09-2009, 08:53 AM
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Originally Posted by Grujo cccc
There are 200 different types of t3t4's? That is just the housing sizes? find out what the ar. is on them and what mm? Also there are 46mm all the way to super60's Call or e-mail the seller and ask some of those question's and let us know buddy. Also the ar. is stamped on both sides of the turbo hot and cold side. t3 is the cold side and t4 is the hot side. hope some of this helps then we can figure out the comp map and see whats up.
Actually, it's not just the housing size..the compressor and turbine wheels are also classified as T3,T04E,T04B,GTxx,etc. wheels. It's a family of turbos, not a specification.
 
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Old 06-09-2009, 10:56 PM
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yea I agree with you on that and the t3/t4 saying is very generic. but none the less more info on the turbo is needed.
 
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Old 06-10-2009, 12:14 AM
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Originally Posted by Grujo cccc
yea I agree with you on that and the t3/t4 saying is very generic. but none the less more info on the turbo is needed.
True that.
 
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Old 06-10-2009, 10:43 PM
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Not that simple. You need to match the turbo/compressor to the Engine first.

Here are some numbers I put together for our car (VQ35DE).

Code:
RPM	CID	Stroke	VE	NA/CFM	4psi	5psi	6psi  7psi	8psi	9psi	10psi	11psi	12psi
0	215	0.5	0.85	0	CFM	CFM	CFM	CFM	CFM	CFM	CFM	CFM	
200	215	0.5	0.85	11	13	14	15	16	16	17	18	19	19
400	215	0.5	0.85	21	27	28	30	31	33	34	36	37	38
600	215	0.5	0.85	32	40	43	45	47	49	51	53	56	58
800	215	0.5	0.85	42	54	57	60	63	66	69	71	74	77
1000	215	0.5	0.85	53	67	71	75	78	82	86	89	93	96
1200	215	0.5	0.85	63	81	85	89	94	98	103	107	111	115
1400	215	0.5	0.85	74	94	99	104	110	115	120	124	130	135
1600	215	0.5	0.85	85	107	113	119	125	131	137	142	148	154
1800	215	0.5	0.85	95	121	128	134	141	148	154	160	167	173
2000	215	0.5	0.85	106	134	142	149	157	164	171	178	185	192
2200	215	0.5	0.85	116	148	156	164	172	180	188	195	204	212
2400	215	0.5	0.85	127	161	170	179	188	197	206	213	222	231
2600	215	0.5	0.85	137	175	184	194	203	213	223	231	241	250
2800	215	0.5	0.85	148	188	198	209	219	229	240	249	259	269
3000	215	0.5	0.85	159	201	213	224	235	246	257	267	278	289
3200	215	0.5	0.85	169	215	227	239	250	262	274	284	296	308
3400	215	0.5	0.85	180	228	241	254	266	279	291	302	315	327
3600	215	0.5	0.85	190	242	255	268	282	295	308	320	333	346
3800	215	0.5	0.85	201	255	269	283	297	311	326	338	352	366
4000	215	0.5	0.85	212	269	283	298	313	328	343	355	370	385
4200	215	0.5	0.85	222	282	298	313	329	344	360	373	389	404
4400	215	0.5	0.85	233	295	312	328	344	361	377	391	407	423
4600	215	0.5	0.85	243	309	326	343	360	377	394	409	426	443
4800	215	0.5	0.85	254	322	340	358	376	393	411	426	444	462
5000	215	0.5	0.85	264	336	354	373	391	410	428	444	463	481
5200	215	0.5	0.85	275	349	368	388	407	426	445	462	481	500
5400	215	0.5	0.85	286	363	383	403	423	443	463	480	500	520
5600	215	0.5	0.85	296	376	397	418	438	459	480	497	518	539
5800	215	0.5	0.85	307	390	411	432	454	475	497	515	537	558
6000	215	0.5	0.85	317	403	425	447	470	492	514	533	555	577
6200	215	0.5	0.85	328	416	439	462	485	508	531	551	574	597
6400	215	0.5	0.85	338	430	453	477	501	525	548	569	592	616
6600	215	0.5	0.85	349	443	468	492	517	541	565	586	611	635
6800	215	0.5	0.85	360	457	482	507	532	557	583	604	629	654
7000	215	0.5	0.85	370	470	496	522	548	574	600	622	648	674
Let assume there is a 2 psi lost from the pipe/FMIC. At 8psi (10psi in compressor), you will need the turbo to feed around 586CFM at 6600rpm with a single turbo and half that if you are going for twin turbo. The T3 Super 60 is going to be way small.

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You need at least a T04B 60-1 trim.

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Even the T04E 60 trim is going to be boarder line past 8psi.
 

Last edited by FI'ed G; 06-10-2009 at 10:51 PM.
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