Vsr 88mm turbos
TECH Enthusiast
Joined: Dec 2017
Posts: 676
Likes: 72
I believe the billet has the 96x88 turbine and the next gen slip has the 102 or 104 turbine. Since the 85mm is recommended to have the 102 id say the 88 needs it too. So yeah the next gen is worth it in my opinion.
I would go with the NextGen 88 for reasons listed above. Their 91mm has been proven to not make really any more power than the 88, people are selling them left and right. But as noted above honestly a nice used FI unit even with the 96mm turbine will probably perform on par with the VSR 88, so you have options.
Launching!
Joined: Jun 2012
Posts: 249
Likes: 36
From: Pennsylvania
For some reason I can’t post a link but if you search s485 vs VS racing next gen 88 in google you can find a Facebook link of a guy who did a comparison in a 4th Gen Camaro. He Does a really nice write up and comparison between the two.
If you have goals above the standard T6 s480, I'd go with twins at that point. Easier to package IMO and much more economical. Better resale usually as well. You've maxed out the exh. wheel for the most part with the S480. And the cheap large wheel turbos just don't seem to perform like the brand name "big exh. wheel" turbos.
Launching!
Joined: Jun 2012
Posts: 249
Likes: 36
From: Pennsylvania
If you have goals above the standard T6 s480, I'd go with twins at that point. Easier to package IMO and much more economical. Better resale usually as well. You've maxed out the exh. wheel for the most part with the S480. And the cheap large wheel turbos just don't seem to perform like the brand name "big exh. wheel" turbos.
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Staging Lane
Joined: Aug 2020
Posts: 73
Likes: 1
When I had my motor built years ago. It was built around my pte 91.5. My cam also was customized around the motor size and the 91.5. When I sold my race car I now have a street car. I spoke with Forcefed86 who knows his stuff. I had my eyes on twins so we threw up ideas on the turbos. Now im thinking my cam? It was spec'd for a large frame turbo🤔🤔🤔. Should I stick with a large frame instead. Lol... SOOOO MANY choices. I only have 1 shot at doing this right🤣🤣🤣
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If you have goals above the standard T6 s480, I'd go with twins at that point. Easier to package IMO and much more economical. Better resale usually as well. You've maxed out the exh. wheel for the most part with the S480. And the cheap large wheel turbos just don't seem to perform like the brand name "big exh. wheel" turbos.
Not much is going to perform like a real Garrett as a single, pretty much the OG big wheel fun haver if you have the budget for it. The difference in power switching from a Borg S400 based unit (even a nice one with larger aftermarket wheels) to a Garrett big turbine is impressive.
When I had my motor built years ago. It was built around my pte 91.5. My cam also was customized around the motor size and the 91.5. When I sold my race car I now have a street car. I spoke with Forcefed86 who knows his stuff. I had my eyes on twins so we threw up ideas on the turbos. Now im thinking my cam? It was spec'd for a large frame turbo🤔🤔🤔. Should I stick with a large frame instead. Lol... SOOOO MANY choices. I only have 1 shot at doing this right🤣🤣🤣
Thread Starter
Staging Lane
Joined: Aug 2020
Posts: 73
Likes: 1
I'm pretty impressed with my twin setup and its cheaper than most large singles. Moore HP just ran 7.7@190+ with these to reset the LS manual record so they make some steam.
Not much is going to perform like a real Garrett as a single, pretty much the OG big wheel fun haver if you have the budget for it. The difference in power switching from a Borg S400 based unit (even a nice one with larger aftermarket wheels) to a Garrett big turbine is impressive.
Depends on the engine size and what size twins you go with, there's a high probability you wont be able to notice any appreciable difference between cams. I swapped back and forth from a large frame to twins, worked well enough unless you are leaning on a max effort setup. I've done cars with blower cams in them that go to twins and don't change the cam, still makes plenty of power. I think people over think the cam on most setups other than extreme NA or N2O as most any turbo LS setup is going to give you more power than you can use with any cam on the street.
Not much is going to perform like a real Garrett as a single, pretty much the OG big wheel fun haver if you have the budget for it. The difference in power switching from a Borg S400 based unit (even a nice one with larger aftermarket wheels) to a Garrett big turbine is impressive.
Depends on the engine size and what size twins you go with, there's a high probability you wont be able to notice any appreciable difference between cams. I swapped back and forth from a large frame to twins, worked well enough unless you are leaning on a max effort setup. I've done cars with blower cams in them that go to twins and don't change the cam, still makes plenty of power. I think people over think the cam on most setups other than extreme NA or N2O as most any turbo LS setup is going to give you more power than you can use with any cam on the street.
Ok very interesting. Thanks for the input. What twins are you running by the way?
A next gen 88 will make about 1200 rwhp pretty reliably. Agree with what the others mentioned though. If you foresee yourself growing out of that at any point in the future just go twins now. GT55 units are definitely badass but they're expensive and can be hard to package. Twin 7675's or 7875's whatever your flavor is definitely the way to go for cost effective big power on these motors. My buddy is building a drag lsx 350Z and had a S485 for his set up. Another local buddy of ours had 7675's on his car but wants to go faster so selling them (he's going 80/93's now). 350Z buddy picked them up and modified his turbo kit to work. They actually fit better and are capable of probably an easy 500 rwhp more. He has a very similar amount of money in both set ups turbo wise too.$1,600 for the S485 and I think he paid $1,400 for the twins.
No sure how much you follow no prep, but it is Blaine Hill. He has a silver 4th gen camaro with black hood. He won the 25k 10.5 till i die event last year as seen in this video and races all over the Midwest pretty seriously
It's a lsnext 388 with 4 bolt trickflow 255 LS3 heads. He was using the most basic cast LS series units. I don't know specific times but I'm sure he was well into the 7's with them. Reason for going bigger is he started running into major back pressure issues with them that he believes started causing motor issues as didn't have any issues then started killing head gaskets when running big boost. If you don't get faster each year in that scene you fall behind. He's going with the 80/93's and 6 bolt heads this winter.
It's a lsnext 388 with 4 bolt trickflow 255 LS3 heads. He was using the most basic cast LS series units. I don't know specific times but I'm sure he was well into the 7's with them. Reason for going bigger is he started running into major back pressure issues with them that he believes started causing motor issues as didn't have any issues then started killing head gaskets when running big boost. If you don't get faster each year in that scene you fall behind. He's going with the 80/93's and 6 bolt heads this winter.
No sure how much you follow no prep, but it is Blaine Hill. He has a silver 4th gen camaro with black hood. He won the 25k 10.5 till i die event last year as seen in this video and races all over the Midwest pretty seriously
It's a lsnext 388 with 4 bolt trickflow 255 LS3 heads. He was using the most basic cast LS series units. I don't know specific times but I'm sure he was well into the 7's with them. Reason for going bigger is he started running into major back pressure issues with them that he believes started causing motor issues as didn't have any issues then started killing head gaskets when running big boost. If you don't get faster each year in that scene you fall behind. He's going with the 80/93's and 6 bolt heads this winter.
It's a lsnext 388 with 4 bolt trickflow 255 LS3 heads. He was using the most basic cast LS series units. I don't know specific times but I'm sure he was well into the 7's with them. Reason for going bigger is he started running into major back pressure issues with them that he believes started causing motor issues as didn't have any issues then started killing head gaskets when running big boost. If you don't get faster each year in that scene you fall behind. He's going with the 80/93's and 6 bolt heads this winter.
Looks like the VSR 88/102 is on sale for $709 now. That does seem like a solid deal. Only seen one car with one and it didn't perform any better than the FI S484 (std 87/96 wheel) it replaced. Still, not bad performance for $709! The 92/103 is also on sale for $950. No experience with one of those.
Singles are proven performers for sure. Folks have gone much faster than I ever will on them. You'll still see less back pressure with a set of 78/75's... I'm kinda hung on that point for performance VS $ spent. Throw a big max effort NA cam in, stay at 1:1 or better w/ back pressure. You'll make more power per pound than you would with a single and a "turbo cam" that has to work around back pressure. Easier to package than 5-6" down pipes, generally better "wow factor" and better resale down the road.
No doubt the Forced inductions units are proven performers over the like sized VSR. So what are the S485's going for? I didn't see them on the website. Are they cheaper than a pair of 78/75s?
Looks like the VSR 88/102 is on sale for $709 now. That does seem like a solid deal. Only seen one car with one and it didn't perform any better than the FI S484 (std 87/96 wheel) it replaced. Still, not bad performance for $709! The 92/103 is also on sale for $950. No experience with one of those.
Singles are proven performers for sure. Folks have gone much faster than I ever will on them. You'll still see less back pressure with a set of 78/75's... I'm kinda hung on that point for performance VS $ spent. Throw a big max effort NA cam in, stay at 1:1 or better w/ back pressure. You'll make more power per pound than you would with a single and a "turbo cam" that has to work around back pressure. Easier to package than 5-6" down pipes, generally better "wow factor" and better resale down the road.
Looks like the VSR 88/102 is on sale for $709 now. That does seem like a solid deal. Only seen one car with one and it didn't perform any better than the FI S484 (std 87/96 wheel) it replaced. Still, not bad performance for $709! The 92/103 is also on sale for $950. No experience with one of those.
Singles are proven performers for sure. Folks have gone much faster than I ever will on them. You'll still see less back pressure with a set of 78/75's... I'm kinda hung on that point for performance VS $ spent. Throw a big max effort NA cam in, stay at 1:1 or better w/ back pressure. You'll make more power per pound than you would with a single and a "turbo cam" that has to work around back pressure. Easier to package than 5-6" down pipes, generally better "wow factor" and better resale down the road.
I'm gaining ~3MPH per pound with the 78's, whatever that comes out to HP wise and I have a Summit ghost cam, 3" downpipes, pretty simple setup.