Greddy T-78... is it just outdated?
#1
Greddy T-78... is it just outdated?
Hey all,
I'm currently in the middle of getting to 500whp, the meth kit is on its way and i'm still working on sourcing the rest of the fuel system.
I have been reading alot in this section, and it seems that everyone is always talking about what the gt35r can do.
My car came with the Greddy T78, and nobody really ever brings that up. I'm just wondering why. Now there is no way I'm switching yet, as from what I've read it should be able to do 500whp. I'm just curious why its never mentioned.
Is it just outdated/overpriced? I know its an older journal bearing turbo. I have searched, and the only comparison that I could find was to a gt35r, and it seems that they are basically the same power-wise but the gt35r spools a bit quicker. Is this accurate? If not, what newer kit would one compare it to?
I'm currently in the middle of getting to 500whp, the meth kit is on its way and i'm still working on sourcing the rest of the fuel system.
I have been reading alot in this section, and it seems that everyone is always talking about what the gt35r can do.
My car came with the Greddy T78, and nobody really ever brings that up. I'm just wondering why. Now there is no way I'm switching yet, as from what I've read it should be able to do 500whp. I'm just curious why its never mentioned.
Is it just outdated/overpriced? I know its an older journal bearing turbo. I have searched, and the only comparison that I could find was to a gt35r, and it seems that they are basically the same power-wise but the gt35r spools a bit quicker. Is this accurate? If not, what newer kit would one compare it to?
#2
patience is everything
Join Date: Oct 2007
Location: Aruba
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
Hey all,
I'm currently in the middle of getting to 500whp, the meth kit is on its way and i'm still working on sourcing the rest of the fuel system.
I have been reading alot in this section, and it seems that everyone is always talking about what the gt35r can do.
My car came with the Greddy T78, and nobody really ever brings that up. I'm just wondering why. Now there is no way I'm switching yet, as from what I've read it should be able to do 500whp. I'm just curious why its never mentioned.
Is it just outdated/overpriced? I know its an older journal bearing turbo. I have searched, and the only comparison that I could find was to a gt35r, and it seems that they are basically the same power-wise but the gt35r spools a bit quicker. Is this accurate? If not, what newer kit would one compare it to?
I'm currently in the middle of getting to 500whp, the meth kit is on its way and i'm still working on sourcing the rest of the fuel system.
I have been reading alot in this section, and it seems that everyone is always talking about what the gt35r can do.
My car came with the Greddy T78, and nobody really ever brings that up. I'm just wondering why. Now there is no way I'm switching yet, as from what I've read it should be able to do 500whp. I'm just curious why its never mentioned.
Is it just outdated/overpriced? I know its an older journal bearing turbo. I have searched, and the only comparison that I could find was to a gt35r, and it seems that they are basically the same power-wise but the gt35r spools a bit quicker. Is this accurate? If not, what newer kit would one compare it to?
the gt35r are just ball bearing and give a quicker spool , but are smaller in size compared to the t-78 ,it all depends on what your going to do with your car
if your gonna do the 1/4 mile the t78 will do since it can go 20+psi.the gt35r's faster in spool so it will be a very responsive car boost wise great for circuit racing or any type of road racing. also since you have a meth kit on the way i think your detonation safe. if you didn't already have a turbo then there would be a decision that had to be made by you but since you already have the t-78 just max it out and see what it will do
Just my opinion .
#5
Stay tuned...
iTrader: (3)
Join Date: Jul 1997
Location: West Islip, Long Island NY
Posts: 2,917
Likes: 0
Received 1 Like
on
1 Post
A friend of mine (turbor1) had a hard time getting the GT35 to go over 22 psi or so. It ran out of compressor and he is upgrading to a larger turbo.
I have seen the T78s have no issues going to 30psi easily and holding it through the rpm range.
Yes, they are older but I always liked the greddy turbos...I have a T88 34D and on 20psi it went 10.8 easily...
Anthony
I have seen the T78s have no issues going to 30psi easily and holding it through the rpm range.
Yes, they are older but I always liked the greddy turbos...I have a T88 34D and on 20psi it went 10.8 easily...
Anthony
Last edited by ErnieT; 02-04-10 at 02:58 AM. Reason: At request of poster
Trending Topics
#8
Just turn up the boost!
iTrader: (1)
Join Date: Jul 2007
Location: HELL
Posts: 662
Likes: 0
Received 0 Likes
on
0 Posts
Greddy T78 is one of my favorite turbo's of all time. They are very reliable and you can turn them up and they take it like a champ! we ran 24+ psi on one for years and when it was taken off it was still like new! barely any play and the blades were not stressed.
they are just old technology which forces noobs to disregard them immediately since the GT series turbos are out now and doing well.
they are just old technology which forces noobs to disregard them immediately since the GT series turbos are out now and doing well.
#10
4th string e-armchair QB
iTrader: (11)
Join Date: May 2005
Location: North Bay, Ontario
Posts: 2,745
Likes: 0
Received 0 Likes
on
0 Posts
as far as ability, they`re not really comparable, the 35R falls off at mid 20 psi and 65 lbs/min, the T-78 will do 30 psi and 80+ lbs/min. Old tech, yes, but you would think that Greddy did some testing to make sure it worked well on the 13b.
#12
This is all great news, I missed out on doing the research to go single because the car came with it. Looks like I'll be sticking with it for a while, I don't think I'll ever push the engine past 22psi (with meth) on pump gas.
Just purchased a fuel system, once that gets here I think I'll be all set to finish breaking in the engine and get tuned.
Just purchased a fuel system, once that gets here I think I'll be all set to finish breaking in the engine and get tuned.
#13
patience is everything
Join Date: Oct 2007
Location: Aruba
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
This is all great news, I missed out on doing the research to go single because the car came with it. Looks like I'll be sticking with it for a while, I don't think I'll ever push the engine past 22psi (with meth) on pump gas.
Just purchased a fuel system, once that gets here I think I'll be all set to finish breaking in the engine and get tuned.
Just purchased a fuel system, once that gets here I think I'll be all set to finish breaking in the engine and get tuned.
#14
The king of the highway!
iTrader: (2)
Join Date: May 2004
Location: Home of the 305 Boyz(miami)
Posts: 2,988
Likes: 0
Received 0 Likes
on
0 Posts
yo
take a look at my sig.
boost # 3700, full boost at 4400rpm. made 478 @ 6000rpms on 17psi. 520 @ 17psi @ 7800rpms
the thing i like about he turbo is when it spools it doesnt stop spooling
\
not that many talk about the turbo cause the kit is around 4k and peoples budgets are kinda on the low!
plus theres the garretts that ive seen people fall in love with!
boost # 3700, full boost at 4400rpm. made 478 @ 6000rpms on 17psi. 520 @ 17psi @ 7800rpms
the thing i like about he turbo is when it spools it doesnt stop spooling
\
not that many talk about the turbo cause the kit is around 4k and peoples budgets are kinda on the low!
plus theres the garretts that ive seen people fall in love with!
#20
Sua Sponte
iTrader: (31)
I have a Greddy T78 on my track car and am very pleased with it. I don't run a crazy amount of boost as it is a track car. Sure it's a big single that is laggier than a GT35R but as Jason said, as long as you are in the right gear boost is always there. It's a non issue for me as I'm never at a dead stop. I think mine was rebuilt by Majestic Turbo's in TX a few years ago for around $500.
Thread
Thread Starter
Forum
Replies
Last Post
eplusz
General Rotary Tech Support
15
10-07-15 04:04 PM