New Mid-Frame turbo
01-18-2016, 09:39 AM
#1
New Mid-Frame turbo Currently i have a PT88 going on a 370 with a Huron Speed non a/c kit. the kit is not installed yet but it will be shortly. ive been thinking about buying a better(or smaller) midframe that may spool better but be able to make 1k+.I have already went through the trouble of buying a turbo k member to run a 4" downpipe so I think im just going to stick with a turbo with a 4" turbine outlet. i was looking for some suggestions as far as size, brand, billet?, ball bearing? ect. i plan to hopefully sell the PT88 and be able to only have to spend a few hundred extra for the better turbo. what do you guys think?
01-18-2016, 11:14 AM
#2
Can you provide a little bit more information in regards to your setup?
V1 or V2 Non AC Kit?
Standard or Upgraded Intercooler?
LS3 Heads, stock castings with upgraded Spring Kit I'd assume?
LS3 Stage II Cam.... Specs??
And most important question is, why do you think that 1k rwhp is not achievable with the setup you currently have?
V1 or V2 Non AC Kit?
Standard or Upgraded Intercooler?
LS3 Heads, stock castings with upgraded Spring Kit I'd assume?
LS3 Stage II Cam.... Specs??
And most important question is, why do you think that 1k rwhp is not achievable with the setup you currently have?
01-18-2016, 11:53 AM
#3
V2 kit
Standard Intercooler
LS3 heads, stock casting, PRC .650 springs
227/235 | .624”/.610” | LSA115+5 cam
I think i can do it with what i have, i was more concerned with spool time. I've heard a few times that it may not spool well, around 4000rpm+ and i'm shooting for closer to 3000rpm, so i was thinking either a smaller turbo, say a pt80, or maybe something that is billet, maybe even ball bearing. its only a 370 with 9:1 compression so I was having some doubts about how well/quickly it could spool up a 88mm, it was sort of an impulse buy, bigger is better right?.... anyways.. i've seen all the hype with the BW turbos, im just a little uneducated when it comes to other brands to be looking at.
Standard Intercooler
LS3 heads, stock casting, PRC .650 springs
227/235 | .624”/.610” | LSA115+5 cam
I think i can do it with what i have, i was more concerned with spool time. I've heard a few times that it may not spool well, around 4000rpm+ and i'm shooting for closer to 3000rpm, so i was thinking either a smaller turbo, say a pt80, or maybe something that is billet, maybe even ball bearing. its only a 370 with 9:1 compression so I was having some doubts about how well/quickly it could spool up a 88mm, it was sort of an impulse buy, bigger is better right?.... anyways.. i've seen all the hype with the BW turbos, im just a little uneducated when it comes to other brands to be looking at.
01-18-2016, 12:22 PM
#4
a pt8047 would be sick.. or any midframe borg s400 series with a billet wheel. When your concerned with spool time, billet wheels and ball bearing are important. Im in the same boat and bought a billet s480 1.25 ar onna 416 and it spools damn quick!! and makes 900+ whp on 18-20lbs of boost. So a 370 id say like a s475 billet with like a 1.10 ar. wont break the bank compared to the precision/garret/comp ball bearing billet turbos
If money isnt a huge issue the turbonetics mid frame turbos are also sick.
If money isnt a huge issue the turbonetics mid frame turbos are also sick.
01-19-2016, 12:41 PM
#5
V2 kit
Standard Intercooler
LS3 heads, stock casting, PRC .650 springs
227/235 | .624”/.610” | LSA115+5 cam
I think i can do it with what i have, i was more concerned with spool time. I've heard a few times that it may not spool well, around 4000rpm+ and i'm shooting for closer to 3000rpm, so i was thinking either a smaller turbo, say a pt80, or maybe something that is billet, maybe even ball bearing. its only a 370 with 9:1 compression so I was having some doubts about how well/quickly it could spool up a 88mm, it was sort of an impulse buy, bigger is better right?.... anyways.. i've seen all the hype with the BW turbos, im just a little uneducated when it comes to other brands to be looking at.
Standard Intercooler
LS3 heads, stock casting, PRC .650 springs
227/235 | .624”/.610” | LSA115+5 cam
I think i can do it with what i have, i was more concerned with spool time. I've heard a few times that it may not spool well, around 4000rpm+ and i'm shooting for closer to 3000rpm, so i was thinking either a smaller turbo, say a pt80, or maybe something that is billet, maybe even ball bearing. its only a 370 with 9:1 compression so I was having some doubts about how well/quickly it could spool up a 88mm, it was sort of an impulse buy, bigger is better right?.... anyways.. i've seen all the hype with the BW turbos, im just a little uneducated when it comes to other brands to be looking at.
I would ditch those PRC Springs, just personal opinion, but I've replaced enough of their broken springs to know - spending the money on a better quality spring kit is well worth the money. I'd personally look at Brian Tooley and K Motion. How high do you intend on spinning the motor? What rotating assembly?
Camshaft certainly appears to look like a boost friendly, semi-aggressive cam. Is it ground on the aircraft grade steel Cam Motion 8620 core?
OEM or Dedicated EFI setup?
01-19-2016, 12:58 PM
#6
the springs came on the heads when i bought them from a user on here.
And the compression was intentional, i wanted to keep it a little lower to be able to run higher boost without meth or E85, its actually closer to 9.2:1 not that it makes a huge difference. i have a few sets of 241s and 317 heads i could work if the compression really starts to be an issue. I plan to spin to about 6800, stock crank, diamond pistons, Thompson motorsports rods, arp main and head studs, standard cam core, and OEM fuel at the moment.
And the compression was intentional, i wanted to keep it a little lower to be able to run higher boost without meth or E85, its actually closer to 9.2:1 not that it makes a huge difference. i have a few sets of 241s and 317 heads i could work if the compression really starts to be an issue. I plan to spin to about 6800, stock crank, diamond pistons, Thompson motorsports rods, arp main and head studs, standard cam core, and OEM fuel at the moment.
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01-19-2016, 01:35 PM
#9
You will be fine. A super low spool time and high power isn't going to help traction anyways. That 370 with those heads and that cam should easily light that PT88 off EARLY. Despite what people say they are not that laggy.
01-19-2016, 02:19 PM
#11
John is a big cathedral port head guy - and I tend to agree with his theories in regards to cathedral port and boost - hence why I'm going with a Hot Isostatic Pressing TFS 245 Cylinder Head with some BTR bowl porting on my combo this season.
I'm aiming for 8's this year with a turbo that's not much different from the one you currently have....
01-20-2016, 07:27 AM
#13
but really, that sweet blue camaro ran 8s and its the fastest GM 6speed. #lifegoals.
01-20-2016, 10:39 AM
#14
Keep on thinking manuals can't hurt feelings at the track. We'll keep banging gears, hurting the arrogant people who think one must run an automatic to win a 1/4 mile race.
Let the haters do exactly that. Keep your eyes on your goals, and when you get her out running for testing - run on gate spring pressure only until you get a feeling for her.
01-20-2016, 11:00 AM
#15
You seem to be from the generational belief that saying something is incredibly difficult is being a "hater". You go ahead and do your 6 speed thing and if that's your goal, great, do your thing. Just because ONE person does something doesn't mean the combo is easy, consistent, etc.
Especially on the street, I will take the auto.
I actually HAVE a running combo so don't get too defensive.
Especially on the street, I will take the auto.
I actually HAVE a running combo so don't get too defensive.
Manual haters make me laugh. Ray went 8.33 in the quarter with an RPM "TR-6060" which is actually a T-56 casing with TR6060 internals and modified tailshaft housing. It's essentially a TR6060 in a T-56's clothing.
Keep on thinking manuals can't hurt feelings at the track. We'll keep banging gears, hurting the arrogant people who think one must run an automatic to win a 1/4 mile race.
Exactly. I'm running a Dominator on my M6 Trans Am - I've got all the haters mad at me already and the car isn't even running yet!
Let the haters do exactly that. Keep your eyes on your goals, and when you get her out running for testing - run on gate spring pressure only until you get a feeling for her.
Keep on thinking manuals can't hurt feelings at the track. We'll keep banging gears, hurting the arrogant people who think one must run an automatic to win a 1/4 mile race.
Exactly. I'm running a Dominator on my M6 Trans Am - I've got all the haters mad at me already and the car isn't even running yet!
Let the haters do exactly that. Keep your eyes on your goals, and when you get her out running for testing - run on gate spring pressure only until you get a feeling for her.
01-20-2016, 11:59 AM
#16
You seem to be from the generational belief that saying something is incredibly difficult is being a "hater". You go ahead and do your 6 speed thing and if that's your goal, great, do your thing. Just because ONE person does something doesn't mean the combo is easy, consistent, etc.
Especially on the street, I will take the auto.
I actually HAVE a running combo so don't get too defensive.
Especially on the street, I will take the auto.
I actually HAVE a running combo so don't get too defensive.
Do you have any theories as to why Ray continues to break his own 6 speed record? The same could be said about Jared @ BTR, who continues to impress with his M6 results... I'll wait.
And I most certainly do have a running M6 combo - just not the WS6 I was referring to as it pertains to this thread.
I'll be at TK2K16, PM me if you'd like to set something up - don't forget to bring your cash though.
01-20-2016, 12:11 PM
#17
Oh boy. Typical response. 
Run some of the English Racing guys they will be at the event participating. I run against a lot of them since they are local
Run some of the English Racing guys they will be at the event participating. I run against a lot of them since they are local
I believe that a good driver, equipped with the right transmission (Liberty's, G-Force, etc.) can and will hurt feelings at the dragstrip.
Do you have any theories as to why Ray continues to break his own 6 speed record? The same could be said about Jared @ BTR, who continues to impress with his M6 results... I'll wait.
And I most certainly do have a running M6 combo - just not the WS6 I was referring to as it pertains to this thread.
I'll be at TK2K16, PM me if you'd like to set something up - don't forget to bring your cash though.
Do you have any theories as to why Ray continues to break his own 6 speed record? The same could be said about Jared @ BTR, who continues to impress with his M6 results... I'll wait.
And I most certainly do have a running M6 combo - just not the WS6 I was referring to as it pertains to this thread.
I'll be at TK2K16, PM me if you'd like to set something up - don't forget to bring your cash though.
01-20-2016, 01:38 PM
#18
I do agree with a 370 will spool a pt88 up nicely, but theres better turbos out there to fit his needs and goals
01-20-2016, 01:42 PM
#19
Manual haters make me laugh. Ray went 8.33 in the quarter with an RPM "TR-6060" which is actually a T-56 casing with TR6060 internals and modified tailshaft housing. It's essentially a TR6060 in a T-56's clothing.
Keep on thinking manuals can't hurt feelings at the track. We'll keep banging gears, hurting the arrogant people who think one must run an automatic to win a 1/4 mile race.
Exactly. I'm running a Dominator on my M6 Trans Am - I've got all the haters mad at me already and the car isn't even running yet!
Let the haters do exactly that. Keep your eyes on your goals, and when you get her out running for testing - run on gate spring pressure only until you get a feeling for her.
Keep on thinking manuals can't hurt feelings at the track. We'll keep banging gears, hurting the arrogant people who think one must run an automatic to win a 1/4 mile race.
Exactly. I'm running a Dominator on my M6 Trans Am - I've got all the haters mad at me already and the car isn't even running yet!
Let the haters do exactly that. Keep your eyes on your goals, and when you get her out running for testing - run on gate spring pressure only until you get a feeling for her.
01-20-2016, 01:58 PM
#20
Reducing the inducer of the compressor wheel from 88 to 80... Would probably gain you nothing in spool response... because those 2 turbos are identical otherwise..
Put the PT88 on the car... be happy with it spooling about 3k rpm once you get it worked out... and be happy with it making 900 to the tire...
You're goals are all over the place... you say you want 1k to the tire... then you'd be happy with 10's...
You should be happy with it making 750 and running mid 9's.
Put the PT88 on the car... be happy with it spooling about 3k rpm once you get it worked out... and be happy with it making 900 to the tire...
You're goals are all over the place... you say you want 1k to the tire... then you'd be happy with 10's...
You should be happy with it making 750 and running mid 9's.