Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
#1
Honda-Tech Member
Thread Starter
iTrader: (1)
Join Date: Oct 2014
Location: Northern VA
Posts: 153
Likes: 0
Received 0 Likes
on
0 Posts
Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
what size turbo do you guys recommend for 600whp + that is not a 6262? I am looking for a quick spooling turbo, I don’t care for a turbo to start spooling at 6k. Looking for a street turbo with super fast spooling. This will go on a ls\vtec sleeved and fully built. I appreciate the feedback.
#2
Honda-Tech Member
re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
I'd start by looking at some of the dyno results and compressor maps of the Garret GT(x)35 series.
76mm+ EFR series from BorgWarner would be worth looking at as well.
76mm+ EFR series from BorgWarner would be worth looking at as well.
#3
Honda-Tech Member
re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
What fuel type and compression is the motor? Can you tell us more about the setup?
#4
Moderator
iTrader: (14)
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
what size turbo do you guys recommend for 600whp + that is not a 6262? I am looking for a quick spooling turbo, I don’t care for a turbo to start spooling at 6k. Looking for a street turbo with super fast spooling. This will go on a ls\vtec sleeved and fully built. I appreciate the feedback.
State your purpose of the car other than "street car", fuel requirements ( type of fuel that will be used major of the time), budget (maximum willingness to spend with an actual $ number stated) , and let's hope you you can stay within a family of turbo that may fit the need.
Also state what YOU have and checked and researched so far to avoid redundancies.
#6
Honda-Tech Member
Thread Starter
iTrader: (1)
Join Date: Oct 2014
Location: Northern VA
Posts: 153
Likes: 0
Received 0 Likes
on
0 Posts
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
Fuel components are 2200cc injectors, Walbro 450 fuel pump and e85 lines, AEM fuel rail and fuel pressure regulator. It will running e85 at all times, compression ratio around 10.5:1.
Trending Topics
#9
Moderator
iTrader: (14)
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
The turbocharger options that are readily available may possibly have its threshold at less than 6,000rpms, (which isn't unreasonable at all) however, I believe that his definition of "quick spooling" may be much less than that, which is more than likely unreasonable. Only Todalybuilt can elaborate further to help narrow down these options. The basic questions have to be examined first.
#10
Honda-Tech Member
iTrader: (1)
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
That makes sense. However, those expectations have to be a bit more reasonable.
The turbocharger options that are readily available may possibly have its threshold at less than 6,000rpms, (which isn't unreasonable at all) however, I believe that his definition of "quick spooling" may be much less than that, which is more than likely unreasonable. Only Todalybuilt can elaborate further to help narrow down these options. The basic questions have to be examined first.
The turbocharger options that are readily available may possibly have its threshold at less than 6,000rpms, (which isn't unreasonable at all) however, I believe that his definition of "quick spooling" may be much less than that, which is more than likely unreasonable. Only Todalybuilt can elaborate further to help narrow down these options. The basic questions have to be examined first.
Like you guys said, we really need to know what he is going, I am just assuming.
#11
Honda-Tech Member
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
You could use NOS to get the turbo to spool, i.e. enable between 3000-6000rpms and <5psi of boost or something. But yeah, I'm with everybody else, 600whp and quick spool isn't gonna happen.
#12
Honda-Tech Member
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
If it weren't for photobucket, god knows why so many people use(d) it, I would refer to D-rob's thread on a 600whp twin scroll EFR RSX build. A twin scroll 8374 B-series is probably the simplest way to achieve decent spool at that power level.
Two other ideas are compound charging (unlikely) or a quick-spool valve. The latter costs a lot, though I do remember a fellow HT member who used it on a GTX3576r build and had great results. Once again, I WOULD have taken the time to fish that one up for you, but for some reason 99% of forum users have apparently never heard of Imgur, sigh.
Two other ideas are compound charging (unlikely) or a quick-spool valve. The latter costs a lot, though I do remember a fellow HT member who used it on a GTX3576r build and had great results. Once again, I WOULD have taken the time to fish that one up for you, but for some reason 99% of forum users have apparently never heard of Imgur, sigh.
#13
Honda-Tech Member
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
600whp 2.0 LS/VTEC and "fast spool"? Going to have to come out and say that's what I shot for and achieved to the best of my ability within a reasonable budget. Nothing crazy going on here, just packaging. My Build Thread
84x89 LS/VTEC
STC Interceptor Turbo 60.8mm
Mini ram
Performer X
GSR head
ITR Cams
~10:1 compression
E85
Its kind of a bastard, in that I really wanted to do 1/2 mile stuff with the ability to turn it down to use it on a road course too. 600whp is way to much for any FWD circuit car, so I have to ASSume that this is going to be drag racing and highway pulls. The interceptor shines there. I did have a chance to really push it on some back roads last year and it was pretty damn good to my surprise. Definitely a turbo for longer tracks but it would do OK otherwise. But again, 600whp is nuts. The turbo is fantastic for what it does though.
84x89 LS/VTEC
STC Interceptor Turbo 60.8mm
Mini ram
Performer X
GSR head
ITR Cams
~10:1 compression
E85
Its kind of a bastard, in that I really wanted to do 1/2 mile stuff with the ability to turn it down to use it on a road course too. 600whp is way to much for any FWD circuit car, so I have to ASSume that this is going to be drag racing and highway pulls. The interceptor shines there. I did have a chance to really push it on some back roads last year and it was pretty damn good to my surprise. Definitely a turbo for longer tracks but it would do OK otherwise. But again, 600whp is nuts. The turbo is fantastic for what it does though.
#14
Honda-Tech Member
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
^Beautiful teg, very nice sound too. Power curve looks great for the overall peak output, like you said.
#16
Moderator
iTrader: (14)
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
Same compressor wheels as the GTX3076R, but better turbine wheel for 600whp (N111 68'm, same as three GT3582R
#17
Honda-Tech Member
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
At that power levels gonna be at the far right of the compressor map... that's a solid 450whp but 500+ is really stretching it.
#18
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
#19
Honda-Tech Member
Thread Starter
iTrader: (1)
Join Date: Oct 2014
Location: Northern VA
Posts: 153
Likes: 0
Received 0 Likes
on
0 Posts
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
That makes sense. However, those expectations have to be a bit more reasonable.
The turbocharger options that are readily available may possibly have its threshold at less than 6,000rpms, (which isn't unreasonable at all) however, I believe that his definition of "quick spooling" may be much less than that, which is more than likely unreasonable. Only Todalybuilt can elaborate further to help narrow down these options. The basic questions have to be examined first.
The turbocharger options that are readily available may possibly have its threshold at less than 6,000rpms, (which isn't unreasonable at all) however, I believe that his definition of "quick spooling" may be much less than that, which is more than likely unreasonable. Only Todalybuilt can elaborate further to help narrow down these options. The basic questions have to be examined first.
So for my new build my goal is to make 600whp or more and I would like to be able to pull ahead of others super fast, that's why I want a turbo that can accomplish this goal.
#20
Honda-Tech Member
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
A twin scroll GTX or EFR is still what I'd be looking into, but like others are saying "responsive" becomes a subjective term at these levels. Nitrous for lower RPM, or pre-boost is also an interesting option and would definitely be effective, but complicates things.
#21
Honda-Tech Member
iTrader: (1)
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
Freeway racing lower RPM's don't really matter because there is no reason that you should be in low rpm's. You should be dropping low enough between shifts unless you shift super slow.
#22
Honda-Tech Member
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
This setup will be mostly for highway pulls. As crazy as this sounds I have a friend with a B20vtec fully built pushing 410whp with a Garrett t3/t4 .60ar and he keeps pulling way ahead of other guys. He raced a guy with fully built ls/vtec with s366 and another one with a fully built gsr with s300 both cars making well over 530whp. They raced a bunch of times always with the same outcome, he pulls way ahead them, then they pass him on the top end around 130mph if not more, basically by the time the race is pretty much done. I have been in his car as well as the other guys cars while they race with the same outcome every time and they have race a bunch of times from a 30, 40 and 60 roll.
So for my new build my goal is to make 600whp or more and I would like to be able to pull ahead of others super fast, that's why I want a turbo that can accomplish this goal.
So for my new build my goal is to make 600whp or more and I would like to be able to pull ahead of others super fast, that's why I want a turbo that can accomplish this goal.
#23
Moderator
iTrader: (14)
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
OP should really read up on all of lightningteg's video adventures & conquests both as an LS & as n. LSVTEC . His is the methodology you want to follow.
#24
Honda-Tech Member
Join Date: Jul 2008
Location: Johannesburg, Gauteng, South Africa
Posts: 540
Likes: 0
Received 17 Likes
on
14 Posts
Re: Opinions needed: Turbocharger airflow/size recommendations for 600whp+ LSVTEC
I would agree with that.. These must be peak power numbers, these guys are making, and it's difficult to make any more than 550 whp stay to the ground, unless a lot of supplemental components are used, as in Lightnungteg's situation.
OP should really read up on all of lightningteg's video adventures & conquests both as an LS & as n. LSVTEC . His is the methodology you want to follow.
OP should really read up on all of lightningteg's video adventures & conquests both as an LS & as n. LSVTEC . His is the methodology you want to follow.
A 60 - 62mm turbo is probably the right range for your goals and it happens to be the most universally accepted turbo size for a 600 - 700 hp 4 cylinder. Look into the STC Garrett based turbos like the Interceptor in the video, alternatively a Precision 6062, EFR8374 in twin-scroll config or BW 362 SX-E all fall into that ballpark. If transient response is your main concern then stick to the ball-bearing options (GTX35, STC, EFR, Precision BB). Some of the 57 - 59 mm turbos might get you to the 600whp mark but they'll be at their limit and require a very efficient setup (no restrictions on inatke manifold, cams, turbo manifold, exhaust and intercooler)
You'll also want boost-by-gear or boost-by-speed, Toyo R888's as a minimum or ideally drag radials, LSD and sorted suspension in order to put the power down in a non drag-strip/slick tyre environment. My EG hatch made ~600whp and on normal street tyres I could still light up the front wheels in 4th gear at that power level...