Newer on3?
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Newer on3? on3? I Know you get what you pay for etc.
But anyone have any experience with the newer vband housing turbos from on 3? People seem to get ok life outta the big cheap turbos, I'm guessing since these big engines dont need to push the turbo really hard to make power.
I'm strongly considering getting one to add to my 6.2. Looking for any on3 experience or similarly prices budget options.
But anyone have any experience with the newer vband housing turbos from on 3? People seem to get ok life outta the big cheap turbos, I'm guessing since these big engines dont need to push the turbo really hard to make power.
I'm strongly considering getting one to add to my 6.2. Looking for any on3 experience or similarly prices budget options.
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I'll check out VS racing. Happen to know if they have vband inlet? They have useable wastegates? I didnt have an issue with the on3 ones I've used before but I'm not committed to them
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I need something that can max out a SBE 6.2 to about 7krpm.
my plan is to run a flex fuel sensor, and then have a 93 tune with 600-700hp. And then to push the limits of the 6.2 on e85. I'm also not against adding spray if I need to get it to spool, or just run it the whole pass occasionally whenever I need to have over 1000hp.
For ease of install I was looking for something with a 3 or 3.5" vband, single turbo, and trying to keep it in budget.
Car will be wastegate pressure 99% of its life. But will make a half dozen grudge race passes a year.
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VS makes a 80mm s400 and 88mm s400 that will both do what you want. They both have dual v band and will kick ***. No need for nitrous to spool them at all. Right cam and tune and they come on line pretty fast. My 6.2 with a tick stage 2 turbo cam and a 3500 stall ptc converter would basically spool as fast as I could slam the pedal down with a s480 but that was a t4 1.25 housing. By I should have gone with the t6 or v band set up and I would have had less back pressure even if it cost me a little slower spool.
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VS makes a 80mm s400 and 88mm s400 that will both do what you want. They both have dual v band and will kick ***. No need for nitrous to spool them at all. Right cam and tune and they come on line pretty fast. My 6.2 with a tick stage 2 turbo cam and a 3500 stall ptc converter would basically spool as fast as I could slam the pedal down with a s480 but that was a t4 1.25 housing. By I should have gone with the t6 or v band set up and I would have had less back pressure even if it cost me a little slower spool.
only reason I was considering nitrous, was if e85 wont get me over the 4 digit hp mark, and I have a small converter and I need a super mild cam.
The car is 100% daily driven. Like the lady taking it to get groceries in the snow, so it needs to have very mild manners when I'm not trying to pick up the random grudge race.
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Honestly 4 digit power with a low stall converter and a mild cam is possible but its gonna take alot of boost. Honestly any car you should be thinking about putting 4 digit power in should never be driven in the rain let alone the snow..
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Are you worried about traction? I've got 3 sets of wheels. Daily, winter and grudge race.
but I'm assuming you didnt know I was awd.
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Teching In
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but I plan on running a converter out of a ZL1 should end up being in the 22-2500rpm stall range.
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I'd recommend going gen 2 7875 then. If you go with the .96 housing its dual v band but I'd go to 1.25 ar t4 to reach the 4digit goal. The smaller turbine will be more inline with the cam and converter choice. The 80mm will be laggy with that tight of a stall. But that is all just my opinion. I'd call vs racing and see what viren recommends if I were you.
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I'd recommend going gen 2 7875 then. If you go with the .96 housing its dual v band but I'd go to 1.25 ar t4 to reach the 4digit goal. The smaller turbine will be more inline with the cam and converter choice. The 80mm will be laggy with that tight of a stall. But that is all just my opinion. I'd call vs racing and see what viren recommends if I were you.
I really would like to keep it vband just for simplicity and fitment.
I made like 800ish on 14psi on a 6.0 (IIRC) with a 78/75 from on3 years ago. But it was more of a kit so they took a lot of the thought and planning out of it.
you think the 78/75 could get me over 900? Worth it to pay the extra for billet or ball bearings? It will be babied its entire life, but it's just one of those, I need it when I need it type of things. I need to be atleast in the 9s with 4500lbs which means over 800hp. But knowing myself, if I get 900 then I'm gonna a push until I hit the magic 1000hp goal post, plus that will put me in the low 9s instead of just 9.90s
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I think you'll run into backpressure issues before you get to 900rwhp with the dual v band .96 ar. Im thinking you best 2 choices are gen 2 7875 with the 1.25 ar or the 80mm s400 t4 1 25 ar. Id do th s480 personally but you will most likely need a higher stall converter or like you said a small shot if nitrous. I would highly recommend the higher stall converter. The 1000 bucks you pay for a ptc converter is money well spent. The zl1 converter isn't made for the type of power your talking about. You'll end up blowing through it. Then you'll be on here saying I have all these good parts why don't I make good power. On any build I talk to anyone about there are a few things I tell them to not skimp on and the converter is #1 in my opinion.
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I'm gonna stick with the lsa converter for now. It's a twin disk and is much much better than any other 6l80 converter. Many V guys are pulling over 1000hp without problems. Daily usage is more important, so if I have converter issues I'll turn the boost back down.
It's a matter of having it done and making 700hp next season. Or not having the money to have it together. Worst case after next season I'll get another one. $300 vs $1200 is a big difference.
But trust me, I get your point. Just have a very specific setup, and goal
It's a matter of having it done and making 700hp next season. Or not having the money to have it together. Worst case after next season I'll get another one. $300 vs $1200 is a big difference.
But trust me, I get your point. Just have a very specific setup, and goal
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Well a gen 2 7875 will do 700rwhp. It can do 900rwhp but only if you use the 1.25 ar. The .96 will have backpressure issues. The s480 will do everything you want but will most likely not do positive manifold pressure till 3000rpm unless you give it a nitrous shot. Start low and hit it with 50 see what it does. And up it till it spools where you want.
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I have run nitrous alot with turbo. Dont try to run the 7875 and spray it till it hits your number. If it has backpressure problems already the nitrous will only make it worse. You hit a wall where going up in nitrous jetting doesn't make any extra power. The back pressure is so high you get an ear effect and less cylinder filling till it just isn't worth it.
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Well a gen 2 7875 will do 700rwhp. It can do 900rwhp but only if you use the 1.25 ar. The .96 will have backpressure issues. The s480 will do everything you want but will most likely not do positive manifold pressure till 3000rpm unless you give it a nitrous shot. Start low and hit it with 50 see what it does. And up it till it spools where you want.
Ok, thanks for the insight. I'm getting the 6.2 together now and I'll probably be back with more questions as I get closer to turbo time. Not building a ton of boost below 3000 could be ok. Keep my drivetrain together and help with any traction issues but then I am worried about having too small of a powerband. I'll dig more into the vsr stuff. I dont have any real issue going with a larger housing. I just dont want to make it too laggy.