Built S&R single turbo DE Kit (now VSR Motorsports)
It's been a year since I had my car boosted with the prototype S&R (now VSR) single turbo kit. This original build was made up of:
Precision 62mm Turbocharger
Turbosmart compgate 40mm Waste Gate
Turbosmart Race Port Blow Off Valve
SS 3" Down Pipe w/ Flex Section
SS 2 1/4" Up Pipe & Gate Pipe
SS 2 1/4" Cross Over Pipe
S&R Oil Catch Can
S&R Reservoir Tank
3" Intercooler Piping
3" Intake
K&N Intake Filter
Bar and Plate Front Mount Intercooler Kit
Turbo Diaper
Vibrant 4 Ply Couplers
Vibrant SS T Bolt Clamps
Turbo Installation Hardware
Oil Sandwich Plate Adapter
This kit was good for 416whp/405wtq @ 6.3psi. The car ran great and I had a blast driving her the past year. Now with 12k on the kit I wanted to see what it was capable of with a built engine so I went back to S&R (VSR Motorsports) to make it happen.
The guys at VSR Motorsports did the following:
9:1 JE pistons
Manley turbo tuff rods
stage 2 Kelford cams
Ported Heads
750cc fic
S&R Fuel system
DC headers
ARP studs and bolts
tuned with Osiris










After Brian did his magic on the dyno we got 587.7whp/540wtrq @ 14.7psi. Let me tell you, on the highway this car pulls like a rapped bull! Thank you Bobby Ralston, Brian Humlicek, Robert Rayer and all the guys at VSR Motorsports. I'm extremely happy with the build!
Precision 62mm Turbocharger
Turbosmart compgate 40mm Waste Gate
Turbosmart Race Port Blow Off Valve
SS 3" Down Pipe w/ Flex Section
SS 2 1/4" Up Pipe & Gate Pipe
SS 2 1/4" Cross Over Pipe
S&R Oil Catch Can
S&R Reservoir Tank
3" Intercooler Piping
3" Intake
K&N Intake Filter
Bar and Plate Front Mount Intercooler Kit
Turbo Diaper
Vibrant 4 Ply Couplers
Vibrant SS T Bolt Clamps
Turbo Installation Hardware
Oil Sandwich Plate Adapter
This kit was good for 416whp/405wtq @ 6.3psi. The car ran great and I had a blast driving her the past year. Now with 12k on the kit I wanted to see what it was capable of with a built engine so I went back to S&R (VSR Motorsports) to make it happen.
The guys at VSR Motorsports did the following:
9:1 JE pistons
Manley turbo tuff rods
stage 2 Kelford cams
Ported Heads
750cc fic
S&R Fuel system
DC headers
ARP studs and bolts
tuned with Osiris










After Brian did his magic on the dyno we got 587.7whp/540wtrq @ 14.7psi. Let me tell you, on the highway this car pulls like a rapped bull! Thank you Bobby Ralston, Brian Humlicek, Robert Rayer and all the guys at VSR Motorsports. I'm extremely happy with the build!
Congrats! Nice numbers. Which Precision 62mm model and what turbine housing size? Was this on pump or race gas?
Also, I noticed that the date on the dyno screen indicates September 5, 2006. LOL WTF
Also, I noticed that the date on the dyno screen indicates September 5, 2006. LOL WTF
Car looks awesome, great numbers for a pretty straightforward internal/fuel/head upgrade. Seems like the DE doesn't like to carry torque no matter what you do. I'm looking at S&R's website, and your power curve looks just about the same. Not ragging at all, just observing. I would've hoped that ported heads and cams wouldn't let power plateau up top like that.
Have any videos? I'm sure she screams.
Have any videos? I'm sure she screams.
Nice build man, kit looks a lot like the Momentum kit. Are you planning on doin a race gas tune? I'd be interested to see what she puts out on full kill. Nonetheless awesome car VSR built for you.
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Hey Guys,
The Turbo is a 6262 with a E cover.
In my opinion I thought the TQ curve was very wide at top.
The dyno computer the hard drive crashed a few months back and I keep forgetting to set the clock, sorry
Come like us on Facebook http://www.facebook.com/sandrperform...ref=ts&fref=ts
The Turbo is a 6262 with a E cover.
In my opinion I thought the TQ curve was very wide at top.
The dyno computer the hard drive crashed a few months back and I keep forgetting to set the clock, sorry
Come like us on Facebook http://www.facebook.com/sandrperform...ref=ts&fref=ts
The smear campaign against T3 based ST kits, especially with regard to pump gas numbers. This guy made almost 600whp on pump with a .82 housing and didn't have to throw a ton of boost at it to accomplish those numbers.
Last edited by RudeG_v2.0; Jan 29, 2013 at 09:41 AM.
Oh. Well I wouldn't want a t3 on a 3.5 liter. But I want more than just 600whp!
except no one else seems to be able to replicate numbers like these even with several pounds of additional boost on larger turbos that flow more, not to mention switching to after market headers and t4 housings. not to mention if you call precision themselves they will tell you the housing is too small for a 3.5L, i personally like to deal more with the guys making the turbo itself which is why i went with the 1.32 housing when i sent mine in for the 66 wheel(the housing precision told me i would need to max the turbo, no benefit to them either since the same price regardless of cover).
what i find funny how people are all like "oh hey this is badass" but claimed bs to gamermodz build numbers out of the same shop.
nothing against op i if your happy with it enjoy i just had to make a comment about how people can be hypocritical although ill admit i cant remember if rude was one of the people calling bs on gamermodz
edit: i am curious though op your setup dosnt seem to spool any quicker then my 6765 setup did with the .96 t4 1 psi difference at 3900 rpms in your favor and i was hitting 14.7 psi about 300 rpms sooner it looks like., am rather curious as to why, wouldnt think the cams would right shift the power band that much
what i find funny how people are all like "oh hey this is badass" but claimed bs to gamermodz build numbers out of the same shop.
nothing against op i if your happy with it enjoy i just had to make a comment about how people can be hypocritical although ill admit i cant remember if rude was one of the people calling bs on gamermodz
edit: i am curious though op your setup dosnt seem to spool any quicker then my 6765 setup did with the .96 t4 1 psi difference at 3900 rpms in your favor and i was hitting 14.7 psi about 300 rpms sooner it looks like., am rather curious as to why, wouldnt think the cams would right shift the power band that much
Last edited by jerryd87; Jan 29, 2013 at 02:36 PM.
edit: i am curious though op your setup dosnt seem to spool any quicker then my 6765 setup did with the .96 t4 1 psi difference at 3900 rpms in your favor and i was hitting 14.7 psi about 300 rpms sooner it looks like., am rather curious as to why, wouldnt think the cams would right shift the power band that much
http://www.cadillacforums.com/forums...j660s-cts.html
This means that this particular car would make about 510whp on a DJ, and THAT means that I am still right. Remember, I have customers making low to mid 600's on DJ's, using pump gas with the T4 .81 a/r turbine housings (18-20psi). These are also simple short block builds, stock heads, cams and intake manifolds. Last time I checked "you boys" had a strung out kit on race gas, and a crap load of boost to get over 600whp (not sure about head work/cams on that engine)
A true comparison would be same day (hour) runs on the same dyno during the same conditions. Or even better, run them at the track. I don't know why it is so difficult for you to understand EBP numbers, and simple fluid dynamics. If EBP is twice the boost pressure...the turbine is TOO SMALL. At 16 PSI we were getting about 30psi of EBP (exhaust back pressure) before the turbine inlet with a T4 .81 a/r 6765. Just think what it would be like on a T3 turbine...again, read up on it, it will help (I hope) you understand the issue at hand just a bit more. Also, while reading, take note to what goes on with IAT's when the turbine is too small for the engine. I have dyno plots to prove this, with EBP printouts so let me know if you want them posted. At the same time I can post a couple of links on the topic, so that others can learn something you have such a hard time with.
Just thougth I correct you on that. I will not be posting anything else in this thread. So if you have any constructive input, or better yet, actual valid data (comparable) to back your statement up, feel free to PM me.
OP, sorry for the OT stuff. As long as you are happy with the way the kit is performing...that is really the most important thing here.
Last edited by Boosted Performance; Jan 30, 2013 at 04:02 AM.
yah but im running even lower compression then you thats why im amazed, im running 8.0:1 compression and 6765(well was) with .96 a/r housing and was seeing 15 psi boost about 4k and 26 psi at 5k according to data logs vs your 14.7 with tiny turbo, tiny exhuast housing and higher compression lol like i said i knew cams would right shift it but damn thats alot i would expect your spool to be left shifted at least another 500 rpm mayby even 1k with such a small turbo and housing.
The turbo does spool later than it did with stock internals. The past couple of days I've been paying attention to points of full boost. I've noticed that on the street I hit full boost at around 4200rpm. I figured that the 272 Kelford cams would result in something like this.




