Hi all,
I have a few turbo questions as I am researching into the options I have for the power levels - the engine will be built running forged rods and lower CR pistons etc.
I have in the garage a few larger 3" V band turbos - GT35 and GT45 sized (generic turbos), they are not internally wastegated.
I am looking to run the below manifold which has a T3 flange:
m http://tuning-parts.bg/manifold/1324/ (http://tuning-parts.bg/manifold/1324/) m
As you can see the manifold doesn't have a wastegate port meaning I have 2 options:
1. Find a T3 turbo with an internal wastegate
2. Use an adaptor which has a wastegate port on it - can also mean I can change the flange type as well
I know a lot of people run GT28 sized turbos which are quite small, I am going for double stock power levels or more so would rather go slightly larger turbo and run lower boost rather than thrashing a smaller turbo causing it to run out of its efficiency islands and increase the intake charge temps.
What do people suggest? Should I go and find a T3 turbo with an internal wastegate or should I get an adaptor to run an external wastegate and use one of the turbos I already have?
Gt28 would give you 2x stock.
Gt24 almost does already.
TD04 seems a good match. Different flange.
I'd find a turbo with wastegate to be honest
That looks very similar to the manifold that I have and I found that the turbo would hit the subframe when used with an adaptor to add a wastegate.
The best bet would be to use an internal wastegate. You could also look on monkeywrenchracing for what turbos/power levels they get.
Sent from my Moto G (5) using Tapatalk
Will have a look at a few options, might look to get an internally wastegated one for better engine bay packaging, what other manifolds do people run on the 1zz? Not really wanting to buy one in the states due to the high cost! Might also look to see if I can mod the stock manifold flange to then fit a turbo.
Not sure if you have seen this thread
l viewtopic.php?f=7&t=60702 (http://www.mr2roc.org/phpBB3/viewtopic.php?f=7&t=60702) l
Might have some of the answers you are looking for
Quote from: "Essex2Visuvesi"Not sure if you have seen this thread
l viewtopic.php?f=7&t=60702 (http://www.mr2roc.org/phpBB3/viewtopic.php?f=7&t=60702) l
Might have some of the answers you are looking for
Thanks for that, I am happy with most of the aspects but mainly having an issue finding a good manifold not from the states - its good to see that there is a T25 manifold on that Danish site for 400DKK - or around £50 although I don't think I can get it shipped to the UK - mainly looking at the T3 manifold as that would support a larger turbo.
Running the turbo at full power is a bit of a way off although I am looking to run low boost on the stock block at some point hopefully next year so ideally need to choose just 1 setup and probably run a larger turbo at very low boost.
Gt35 and 45 will be too big for a 1zz on the street it's going to take ages to spool up.
I really like Borg Warner 6258 turbos just from their spec.
Gtx 2967 would be good also and people make t3 housings for them.
Neither are cheap.
Quote from: "1979scotte"Gt35 and 45 will be too big for a 1zz on the street it's going to take ages to spool up.
I really like Borg Warner 6258 turbos just from their spec.
Gtx 2967 would be good also and people make t3 housings for them.
Neither are cheap.
I am not too worried about spool as although the car is a road car I will probably be off boost most of the time, the current turbos I have in the garage have no internal wastegate so they aren't an option, might look at some generic T3 turbos and see what sort of performance they have. I am aware that the cheaper generic turbos have bad press but they work perfectly for some and not for others (usually if you overboost them or don't have the correct oil lines) - considering you can usually buy 5 or more generic turbos for the same price as a brand name (which might also fail) I am going to initially go with a generic T3 turbo.
I have also noticed that Copilot connected to the PFC means I also have launch control so I should be able to get a larger turbo to spool on the line when I need it to.
Also regarding spool up, I will be looking to run a lighter flywheel which will help the engine to rev up, I have also noticed that the engine doesn't really take much time to get into the higher RPMs anyway probably due to the gearing in the 6 speed box, also running a larger turbo at very low boost will still be running the same air flow as a smaller turbo on medium boost.
It seems odd that there are very few 1zz turbo manifolds out there, there is still the option for a supercharger but I would prefer a turbo due to the fact I can run different boost settings and its what I am used to.
Quote from: "m1tch"Quote from: "Essex2Visuvesi"Not sure if you have seen this thread
l viewtopic.php?f=7&t=60702 (http://www.mr2roc.org/phpBB3/viewtopic.php?f=7&t=60702) l
Might have some of the answers you are looking for
Thanks for that, I am happy with most of the aspects but mainly having an issue finding a good manifold not from the states - its good to see that there is a T25 manifold on that Danish site for 400DKK - or around £50 although I don't think I can get it shipped to the UK - mainly looking at the T3 manifold as that would support a larger turbo.
Running the turbo at full power is a bit of a way off although I am looking to run low boost on the stock block at some point hopefully next year so ideally need to choose just 1 setup and probably run a larger turbo at very low boost.
When I spoke the the guy in Denmark about 18months again the shipping to uk was about £30.
His English is not great so keep any emails brief and use simple language.
Don't bother with google translate as it doesn't work very well with Nordic languages
The turbo kit I was building before I bought a car that already had a power enterprise kit may be up your street. I don't know if this is against the rules, it's not an advert, just saying what I've got and why.
I've got a cast manifold with a t3 flange
A turbo from an r33 gtst skyline (I chose this turbo because it is a ball bearing turbo with a t3 flange and it has a composite exhaust wheel, I'm no expert but I would expect it to flow somewhere near a gt2860 but spool a bit better cos of less inertia) the skyline guys don't love them because above 10psi they need to have steel internals fitted cos the composite exhaust wheel doesnt like high egt's apparently, but 10psi on a turbo this size should see very high 200's hp on a 1zz and be really reliable.
I've also got a nice sized "pace products" (look em up, good gear) charge cooler and rad.
I'd be tempted to part with my little collection, it's the basis of a really good and reliable setup imo, realistically I'm not going to find the time to convert my pe car to this setup as much as I'd love to.
Quote from: "m1tch"Quote from: "1979scotte"Gt35 and 45 will be too big for a 1zz on the street it's going to take ages to spool up.
I really like Borg Warner 6258 turbos just from their spec.
Gtx 2967 would be good also and people make t3 housings for them.
Neither are cheap.
I am not too worried about spool as although the car is a road car I will probably be off boost most of the time, the current turbos I have in the garage have no internal wastegate so they aren't an option, might look at some generic T3 turbos and see what sort of performance they have. I am aware that the cheaper generic turbos have bad press but they work perfectly for some and not for others (usually if you overboost them or don't have the correct oil lines) - considering you can usually buy 5 or more generic turbos for the same price as a brand name (which might also fail) I am going to initially go with a generic T3 turbo.
I have also noticed that Copilot connected to the PFC means I also have launch control so I should be able to get a larger turbo to spool on the line when I need it to.
Also regarding spool up, I will be looking to run a lighter flywheel which will help the engine to rev up, I have also noticed that the engine doesn't really take much time to get into the higher RPMs anyway probably due to the gearing in the 6 speed box, also running a larger turbo at very low boost will still be running the same air flow as a smaller turbo on medium boost.
It seems odd that there are very few 1zz turbo manifolds out there, there is still the option for a supercharger but I would prefer a turbo due to the fact I can run different boost settings and its what I am used to.
Are you going for low compression pistons?
That will make it spool even slower and off boost performance will be even worse.
What is your ultimate power goal?
Quote from: "1979scotte"Quote from: "m1tch"Quote from: "1979scotte"Gt35 and 45 will be too big for a 1zz on the street it's going to take ages to spool up.
I really like Borg Warner 6258 turbos just from their spec.
Gtx 2967 would be good also and people make t3 housings for them.
Neither are cheap.
I am not too worried about spool as although the car is a road car I will probably be off boost most of the time, the current turbos I have in the garage have no internal wastegate so they aren't an option, might look at some generic T3 turbos and see what sort of performance they have. I am aware that the cheaper generic turbos have bad press but they work perfectly for some and not for others (usually if you overboost them or don't have the correct oil lines) - considering you can usually buy 5 or more generic turbos for the same price as a brand name (which might also fail) I am going to initially go with a generic T3 turbo.
I have also noticed that Copilot connected to the PFC means I also have launch control so I should be able to get a larger turbo to spool on the line when I need it to.
Also regarding spool up, I will be looking to run a lighter flywheel which will help the engine to rev up, I have also noticed that the engine doesn't really take much time to get into the higher RPMs anyway probably due to the gearing in the 6 speed box, also running a larger turbo at very low boost will still be running the same air flow as a smaller turbo on medium boost.
It seems odd that there are very few 1zz turbo manifolds out there, there is still the option for a supercharger but I would prefer a turbo due to the fact I can run different boost settings and its what I am used to.
Are you going for low compression pistons?
That will make it spool even slower and off boost performance will be even worse.
What is your ultimate power goal?
I am indeed going for the slightly more expensive 8.8:1 lower compression pistons, although they do have 10:1 as well - would rather have the safety margin in terms of knock reduction.
Power goal is 400bhp which seems possible looking at PRSpyder's specs in the guide section running a GT30 sized turbo - I am basically looking to build up the engine once for high boost application so when running lower boost its not really stressing the engine that much. I know you can get more power out of the 2zz as well when looking at Frank Profera's Lotus build as well as some of the MWR builds - just want to see what sort of power a mildly built 1zz can make with a few upgrades.
Just looking at a bhp change calculator for change in compression ratio, say the engine is running at 150bhp @ 10:1 stock pistons, power will drop to 147bhp with 8.8:1 pistons so there will be a drop but not a huge amount.
Oh..... my little smaller than a t3 nissan unit won't breathe 400hp! Lol. That will be a loon!
i had this exact setup and for a car with 250-280hp its a perfect blend of response and top end power.
the only thing i would say is i had some fun with the oil return line as the turbo hangs quite low on that cast manifold
Quote from: "maybeturbo"The turbo kit I was building before I bought a car that already had a power enterprise kit may be up your street. I don't know if this is against the rules, it's not an advert, just saying what I've got and why.
I've got a cast manifold with a t3 flange
A turbo from an r33 gtst skyline (I chose this turbo because it is a ball bearing turbo with a t3 flange and it has a composite exhaust wheel, I'm no expert but I would expect it to flow somewhere near a gt2860 but spool a bit better cos of less inertia) the skyline guys don't love them because above 10psi they need to have steel internals fitted cos the composite exhaust wheel doesnt like high egt's apparently, but 10psi on a turbo this size should see very high 200's hp on a 1zz and be really reliable.
I've also got a nice sized "pace products" (look em up, good gear) charge cooler and rad.
I'd be tempted to part with my little collection, it's the basis of a really good and reliable setup imo, realistically I'm not going to find the time to convert my pe car to this setup as much as I'd love to.
Quote from: "keljon"i had this exact setup and for a car with 250-280hp its a perfect blend of response and top end power.
the only thing i would say is i had some fun with the oil return line as the turbo hangs quite low on that cast manifold
Quote from: "maybeturbo"The turbo kit I was building before I bought a car that already had a power enterprise kit may be up your street. I don't know if this is against the rules, it's not an advert, just saying what I've got and why.
I've got a cast manifold with a t3 flange
A turbo from an r33 gtst skyline (I chose this turbo because it is a ball bearing turbo with a t3 flange and it has a composite exhaust wheel, I'm no expert but I would expect it to flow somewhere near a gt2860 but spool a bit better cos of less inertia) the skyline guys don't love them because above 10psi they need to have steel internals fitted cos the composite exhaust wheel doesnt like high egt's apparently, but 10psi on a turbo this size should see very high 200's hp on a 1zz and be really reliable.
I've also got a nice sized "pace products" (look em up, good gear) charge cooler and rad.
I'd be tempted to part with my little collection, it's the basis of a really good and reliable setup imo, realistically I'm not going to find the time to convert my pe car to this setup as much as I'd love to.
I can't believe that! I really thought I had come up with a genius setup all on my own. s:lol: :lol: s:lol: