Is the GReddy T78 turbo streetable?
#1
Driving a Rotary Sled!
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Is the GReddy T78 turbo streetable?
Someone told me that the T78 turbo was very streetable. Is that true in your experiences?
Thanks in advance for your input!
Thanks in advance for your input!
#2
Weird Cat Man
What is streetable or not streetable is a matter of opinion.
To me, there are better choices out there for streetability....
What are your rwhp goals and at what boost level and with what mods? Do some snooping in the single turbo forum here... I'm sure that many of your questions can be answered by using the search button
To me, there are better choices out there for streetability....
What are your rwhp goals and at what boost level and with what mods? Do some snooping in the single turbo forum here... I'm sure that many of your questions can be answered by using the search button
#5
Veni, Vidi, Vici
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Love my T78, but for daily driving I just run 10psi. I think thats around 350 at the wheels. Yes its a little laggy compared to the BNR's I had running non-seq, but the kick in the pants when the T78 spools makes up for the loss on the low end.
It doesnt take some adjusting to your driving style, going WOT when the wheels arent straight isnt a good idea
But any way you go, go single ! .... Less stock crap to deal with
It doesnt take some adjusting to your driving style, going WOT when the wheels arent straight isnt a good idea
But any way you go, go single ! .... Less stock crap to deal with
#7
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Streetability is a interesting thing, especially when talking about single turbos. Having a single turbo is like having two cars in one. With a larger, laggier turbo, you can putz around town up to 4500 rpm without getting into too much boost. If you want full boost sooner, just downshift. With a GT series turbo or a much smaller t-series, you are into full boost way before the 4500 mark, which I personally don't think I would like for driving around town. With a GT series turbo, if you want to go a little faster in town, but stay out of boost, you have to up-shift, and then you lose much of what little torque we make in that power band. I'd look at it this way: You're either full on or full off from either 3500rpm (gt series) or from 4500 (t-78). With the t-78, you get an extra 1000 rpm in say 2nd, 3rd, 4th gear when your out on the street and don't want to be boosting. To me, this sounds more "streetable".
Last edited by Old Slow Coach; 12-14-06 at 12:35 PM.
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#8
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Well your analogy makes absolutely no sense because if you're not going full throttle you're hardly going to make any boost at all with the quicker spooling turbo.
#13
Rotary Enthusiast
Originally Posted by GoodfellaFD3S
why do you think I went with the 500r instead of a Greddy T-78/Turbonetics T-66/Garrett T04R ?
Didnt have the ***** for the big boy turbo?
#15
Original Gangster/Rotary!
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Originally Posted by mirabile
Didnt have the ***** for the big boy turbo?
#16
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Originally Posted by GoodfellaFD3S
Well, based on the sheets I've seen, the 500r makes just as much power at a similar boost level as the antiquated T-78 does (450 at 15 and 500 at 20) but spools much quicker (15 psi by 3500 rpm). Plus, it's claimed you can push the 500r to run just as much peak boost as a T-78. Why have lag when it's not needed ?
#19
Original Gangster/Rotary!
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Originally Posted by ghostrx7
Your dyno sheet says otherwise. 421=/= 450. Also at 17 psi.
Here, click this link:
https://www.rx7club.com/showpost.php...4&postcount=13
#20
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Then change your sig buddy, you have it as 500r powered, but list 421whp. nice try my ***- if you knew how to set up your sig properly it wouldnt have been mentioned. BTW a-spec kits are known to not put out the #s claimed. IE, 40r. EXACTLY what jason said THEIR DYNO- THEIR KIT, of course its going to magically make the #s claimed. Ill stick to proven power, a lot of these newer kits just arent performing they way they are advertised.
#22
Original Gangster/Rotary!
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Originally Posted by ghostrx7
Then change your sig buddy, you have it as 500r powered, but list 421whp. nice try my ***- if you knew how to set up your sig properly it wouldnt have been mentioned. BTW a-spec kits are known to not put out the #s claimed. IE, 40r. EXACTLY what jason said THEIR DYNO- THEIR KIT, of course its going to magically make the #s claimed. Ill stick to proven power, a lot of these newer kits just arent performing they way they are advertised.
Second, when you click the dyno link in my sig, what do you see under the hood? Exactly.
Third, show a little respect to those who have been in this game a lot longer than you, and contributed a hell of a lot more to the community than you.
The difference between you and I in this thread is that I'm informed. I know what is inside a 500r, and you don't. That's not your fault, it's not common knowledge. I guess I'll see what my setup makes soon enough, but I've been around enough T-78s to know that they're too laggy for my personal tastes and application.
#24
Will u do me a kindness?
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T-78 ha! Talk about a paperweight. Can it make good power? Sure it can, so can $50 eBay turbos. I've seen T78 cars make under 300 hp and make over 500 hp the turbo is only one small part of the whole equation.
The Trust (GReddy) is proprietary modified Mitsubishi turbo that weighs a ton, isn't water cooled and has none of the benefits of the newer, more efficiently designed GT series ball bearing turbos.
It's also next to impossible to get authentic parts for when it comes time to repair so you end up with a Garrett hybrid anyways. You also get squat for support from GRedddy.
The Trust (GReddy) is proprietary modified Mitsubishi turbo that weighs a ton, isn't water cooled and has none of the benefits of the newer, more efficiently designed GT series ball bearing turbos.
It's also next to impossible to get authentic parts for when it comes time to repair so you end up with a Garrett hybrid anyways. You also get squat for support from GRedddy.
#25
Rotary Enthusiast
Originally Posted by the_glass_man
T-78 ha! Talk about a paperweight. Can it make good power? Sure it can, so can $50 eBay turbos. I've seen T78 cars make under 300 hp and make over 500 hp the turbo is only one small part of the whole equation.
The Trust (GReddy) is proprietary modified Mitsubishi turbo that weighs a ton, isn't water cooled and has none of the benefits of the newer, more efficiently designed GT series ball bearing turbos.
It's also next to impossible to get authentic parts for when it comes time to repair so you end up with a Garrett hybrid anyways. You also get squat for support from GRedddy.
The Trust (GReddy) is proprietary modified Mitsubishi turbo that weighs a ton, isn't water cooled and has none of the benefits of the newer, more efficiently designed GT series ball bearing turbos.
It's also next to impossible to get authentic parts for when it comes time to repair so you end up with a Garrett hybrid anyways. You also get squat for support from GRedddy.
PS. You just compared a 50$ ebay turbo to a 4k kit.