Off shore Turbo reliability
I don't blame Summit for not playing in the turbo game at the moment. They have to cover their own butts. Their return policy is so broad that any idiot that installs a turbo wrong and blows it up can return it for a refund. They carry VSR turbos too.
I don't think its a matter of quality, as the VS stuff is likely made in the same factory as the summit stuff or any other similar S400 Ebay clone turbo. The problem is finding someone to stand behind the product *IF* there's a problem. That's what you pay for from a vendor (middle man) VS seems to take less of a "cut" than most middle man businesses like Summit. They still have a VERY reasonable product and VS stands behind it with great customer service. So paying a bit extra that seems reasonable to me. If you treat it as a disposable unit... it may make sense to gamble with the lesser ebay units and skip the customer service. An 8.7 at 3400+lbs is a lofty goal. But I bet the VS80 could do it. Though you might as well go with the VS S485 with your goals. It's not much more, and id bet it out performs the cast s480. (just a guess, no data on that)
The S400 frame stuff is pretty bullet proof as far as turbos go. You rarely see one fail if not mistreated. If you buy the real cast S480 I'd go for the 1.58 T6 housing for the extra umpth up top. Your talking 1000-1100whp for 8.7x @ 3400lbs. And that's assuming you can 1/8th mile decently.
I'm a fan of your work! lol... that's pretty darn contained if you ask me! I don't think its fair to base a products reliability on someone that is over speeding the unit. Was the gate pinned on those runs? I'm betting that turbo was WAY over it's intended RPM range. The fact that it let loose and the hub didn't explode is pretty amazing IMO.
The S400 frame stuff is pretty bullet proof as far as turbos go. You rarely see one fail if not mistreated. If you buy the real cast S480 I'd go for the 1.58 T6 housing for the extra umpth up top. Your talking 1000-1100whp for 8.7x @ 3400lbs. And that's assuming you can 1/8th mile decently.
I'm a fan of your work! lol... that's pretty darn contained if you ask me! I don't think its fair to base a products reliability on someone that is over speeding the unit. Was the gate pinned on those runs? I'm betting that turbo was WAY over it's intended RPM range. The fact that it let loose and the hub didn't explode is pretty amazing IMO.
Fastest manual LS car is running 7's with VSR 78/75's, they seem to be working fine under that pressure ~30lbs on a 427 if I recall.
I would agree, thats a pretty mild turbo failure. I had the same exact thing happen to a box stock borg, wheel is still sitting on my bar.
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[QUOTE=
I'm a fan of your work! lol... that's pretty darn contained if you ask me! I don't think its fair to base a products reliability on someone that is over speeding the unit. Was the gate pinned on those runs? I'm betting that turbo was WAY over it's intended RPM range. The fact that it let loose and the hub didn't explode is pretty amazing IMO.[/QUOTE]
thanks man, on that pass it had 60psi on the dome so safe to say the wastegate was pretty much shut the whole pass so there’s no doubt I over spun it
it was a decent turbo for what it cost but in an apples to apples comparison with a real s475 I had 60psi on it for a lot of passes and it’s still perfectly fine
for the price of the gen 1 vs80 I don’t think you can go wrong just know that when it’s done don’t push it lol now if you were thinking of a gen 2 vs turbo I would be nervous about spending 1600 on one but that’s me
I'm a fan of your work! lol... that's pretty darn contained if you ask me! I don't think its fair to base a products reliability on someone that is over speeding the unit. Was the gate pinned on those runs? I'm betting that turbo was WAY over it's intended RPM range. The fact that it let loose and the hub didn't explode is pretty amazing IMO.[/QUOTE]
thanks man, on that pass it had 60psi on the dome so safe to say the wastegate was pretty much shut the whole pass so there’s no doubt I over spun it
it was a decent turbo for what it cost but in an apples to apples comparison with a real s475 I had 60psi on it for a lot of passes and it’s still perfectly fine
for the price of the gen 1 vs80 I don’t think you can go wrong just know that when it’s done don’t push it lol now if you were thinking of a gen 2 vs turbo I would be nervous about spending 1600 on one but that’s me
Not sure what VS turbo is $1600, must be a 106mm or something. But I'm sure that price beats spending $5,400 on a precision that lasts 3 miles, or $3000 on a comp that doesnt make any more power than a shelf borg.
That's the main point of the non-mainstream/big name brands. The price better well justify trying it. If its within spitting distance of a name brand then whats the point of rolling the dice?
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I agree, I stop pushing them when they start dropping hp/lb. Haven't had any failures that way, if it needs a bigger turbo then it gets a bigger turbo.
Not sure what VS turbo is $1600, must be a 106mm or something. But I'm sure that price beats spending $5,400 on a precision that lasts 3 miles, or $3000 on a comp that doesnt make any more power than a shelf borg.
Not sure what VS turbo is $1600, must be a 106mm or something. But I'm sure that price beats spending $5,400 on a precision that lasts 3 miles, or $3000 on a comp that doesnt make any more power than a shelf borg.
I have been tossing around the idea of playing with one of the gt55 knock-offs to see how they do but idk if I wanna waste the money if it’s not gonna make more then my s491 does
I agree it should’ve gotten a bigger turbo but after going 8.01 and 8.02 twice I just wanted that little bit more lol and the vs88/103 is 1400 and the 92/110 is 1600
I have been tossing around the idea of playing with one of the gt55 knock-offs to see how they do but idk if I wanna waste the money if it’s not gonna make more then my s491 does
I have been tossing around the idea of playing with one of the gt55 knock-offs to see how they do but idk if I wanna waste the money if it’s not gonna make more then my s491 does
Not sure about the knockoffs but we went from the S491 to a real GTX55 and made the same power on 10 less lbs, and continued upwards made a lot more on 32 lbs than the 491 did on 37lbs. To me the 491 is a stop gap if you cant get around the S400 sizing, but the GTX55 with a tial housing is a killer! Kinda funny when the GTX55 on gate traps the same as the 91 on kill. You can find used GTX55's for less than the knockoff units, thats my main holdup with paying over $1500 for a ching chong unit.
Launching!
Joined: Dec 2011
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From: south florida
/\ pretty much where i was at.
needing something larger than a s480 but didnt want to make the jump to a gt55 yet and have to redo the entire hot side. the 92/110 dropped right in place of the s480 and has worked pretty good for a few months now, grabbed from huron speed when they dropped to price another 100 on it . if a used bw s491 popped up for about the same price i probably wouldve grabbed it but wasnt interested in paying new price for one knowing in less than a year id want to go bigger.
needing something larger than a s480 but didnt want to make the jump to a gt55 yet and have to redo the entire hot side. the 92/110 dropped right in place of the s480 and has worked pretty good for a few months now, grabbed from huron speed when they dropped to price another 100 on it . if a used bw s491 popped up for about the same price i probably wouldve grabbed it but wasnt interested in paying new price for one knowing in less than a year id want to go bigger.
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Don't see much talk of the On3 GT55 clones. Id like to see those run. They are lighter than the S400's and about $950 for the Cast 94mm with the 103mm exh wheel. They come with the SS Vband housings as well and I want to say they are 36-37lbs. Seems like a deal if they performed. Should outperform the S485 on paper... Just don't ever see people run them.
Don't see much talk of the On3 GT55 clones. Id like to see those run. They are lighter than the S400's and about $950 for the Cast 94mm with the 103mm exh wheel. They come with the SS Vband housings as well and I want to say they are 36-37lbs. Seems like a deal if they performed. Should outperform the S485 on paper... Just don't ever see people run them.
I haven't pulled the trigger on anything just yet. I'm, glad there is a discussion going on here might help other guys if they search and see this. In all honesty if the score board lights 8.99 I'm happy and it may be lighter than 3400 that's a guesstimate should be lighter.
Ya the big wheels are getting expensive, I'd rather go twins at that point if on a budget.
Not sure about the knockoffs but we went from the S491 to a real GTX55 and made the same power on 10 less lbs, and continued upwards made a lot more on 32 lbs than the 491 did on 37lbs. To me the 491 is a stop gap if you cant get around the S400 sizing, but the GTX55 with a tial housing is a killer! Kinda funny when the GTX55 on gate traps the same as the 91 on kill. You can find used GTX55's for less than the knockoff units, thats my main holdup with paying over $1500 for a ching chong unit.
Not sure about the knockoffs but we went from the S491 to a real GTX55 and made the same power on 10 less lbs, and continued upwards made a lot more on 32 lbs than the 491 did on 37lbs. To me the 491 is a stop gap if you cant get around the S400 sizing, but the GTX55 with a tial housing is a killer! Kinda funny when the GTX55 on gate traps the same as the 91 on kill. You can find used GTX55's for less than the knockoff units, thats my main holdup with paying over $1500 for a ching chong unit.
https://www.on3performance.com/shop/...-housing-copy/
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The China versions aren't $1500+ though. They are currently $850 for the cast 94/103 and 107/103 GT55 clone with the SS housings. $950 for the billet wheel 94mm and $1050 for the billet 107mm. $850 is a VSR S480 price tag. Yet noone is testing these? I don't understand why... As you say, even on gate they are making great power. If I were doing a single again... I'd try one.
https://www.on3performance.com/shop/...-housing-copy/
https://www.on3performance.com/shop/...-housing-copy/
as far as the on3 big turbos go I think mavn has the 94 which needed like 28psi to crack 1k and I’ve seen another guy with the 107 that needed I think 36-37psi to make 1300 so there kinda crappy from what few I’ve seen
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The guy from no name racecars on you tube runs the 107mm on his car with a 5.3 I think and basically says it works great.
Complete street performance had one on a vetted awhile back and blew the intake up. if I remember right they where around 1300rwhp when they blew the intake up.
But I have also read that they don't make the power of a true gt55 106mm but hey I'm really considering trying one myself.
Complete street performance had one on a vetted awhile back and blew the intake up. if I remember right they where around 1300rwhp when they blew the intake up.
But I have also read that they don't make the power of a true gt55 106mm but hey I'm really considering trying one myself.
The China versions aren't $1500+ though. They are currently $850 for the cast 94/103 and 107/103 GT55 clone with the SS housings. $950 for the billet wheel 94mm and $1050 for the billet 107mm. $850 is a VSR S480 price tag. Yet noone is testing these? I don't understand why... As you say, even on gate they are making great power. If I were doing a single again... I'd try one.
https://www.on3performance.com/shop/...-housing-copy/
https://www.on3performance.com/shop/...-housing-copy/
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I know but my point was you can get used GTX55's for $1,500, so there's no point in buying a ching chong for around $1000 that doesn't give anywhere near the same results. The real GT55's make great power, so far all the data says the big wheel chongs are complete turds.
The guy from no name racecars on you tube runs the 107mm on his car with a 5.3 I think and basically says it works great.
Complete street performance had one on a vetted awhile back and blew the intake up. if I remember right they where around 1300rwhp when they blew the intake up.
But I have also read that they don't make the power of a true gt55 106mm but hey I'm really considering trying one myself.
Complete street performance had one on a vetted awhile back and blew the intake up. if I remember right they where around 1300rwhp when they blew the intake up.
But I have also read that they don't make the power of a true gt55 106mm but hey I'm really considering trying one myself.
I'd like to know what his car runs, seems pretty secretive about it on the videos. It looked like baby boost around 18-22lbs. I did see a dyno making almost 1200. Thats with factory heads on a 5.3, so pretty impressive if that wasn't 35lbs+. Even if it was... seems about right for a motor making 350HP na.
