[Build Thread] -- Journey to 700+ WHP [Supercharger]

[Bens98gagt]

Originally Posted by cupcakez

May I ask what kind of internals your built engine is going to have to support that kind of power?
Like, what type of rods / pistons?
Is it a stroker kit?
What about the compression ratio?

Thanks

Also, what kind of upper intake manifold are you going to have / do you have?

I will use the same Stillen intake manifold just port match it to the head for optimum flow. I decided not to do a stroker kit mainly because I dont want to sacrifice that surface area of the block for heat transfer and reliability. I’m using the Billet crank for extra insurance mainly. The build will be good up to 1200 but will only push it to 900 but will overbuild in case I decide to bump it up a little more. I will stick with stock 11:1 compression on the pistons. Here is my internal build list. Allot of this is OEM replacement stuff like the bearings and timing chain but just a list what is being done. I’m already running a duel fuel pump setup with a 340 and 450. And I already have a Quaife LSD installed.

RJM CLOSED DECK VHR ENGINE BLOCK
CARILLO VHR PRO-H ROD SET
S OEM WATER PUMP, NISSAN 370/INFINITI
S ACL STANDARD MAIN BEARINGS
S ACL THRUST WASHER SET
S CP VHR PISTON SET
S NISSAN GRADE 2 ROD BEARING, 370Z
S OEM VHR MAIN TIMING CHAIN
S TIMING CHAIN (INTAKE TO EXHAUST CAM
S TIMING GUIDE RAIL (UPPER)
S VHR TIMING CHAIN TENSIONER
S VHR TIMING GUIDE RAIL (RIGHT)
S VHR TENSIONER
S ARP NISSAN VQ MAIN STUD KIT
S CUSTOM COPPER HEAD GASKET (PAIR)
S OEM REAR MAIN SEAL VHR
S VHR ENGINE GASKET KIT
S VHR TIMING GUIDE
S VHR TENSIONER PULLEY
S ARP CUSTOM AGE 625+ HEAD STUD KIT
S BC NISSAN VHR BILLET CRANK
S TRV259 SERIES INTERCOOLER 1300HP

S JOE GIBBS BREAK IN OIL (5W30)
S VHR PRIMARY A/F SENSOR (MANIFOLD)
S INJECTOR DYNAMICS 1700C INJECTORS
S HS IRIDIUM M-SERIES PLUGS (VHR)

Not cheap at all but I only want to do this once so I’m not cutting any corners.

[cupcakez]

Originally Posted by Bens98gagt

I will use the same Stillen intake manifold just port match it to the head for optimum flow. I decided not to do a stroker kit mainly because I dont want to sacrifice that surface area of the block for heat transfer and reliability. I’m using the Billet crank for extra insurance mainly. The build will be good up to 1200 but will only push it to 900 but will overbuild in case I decide to bump it up a little more. I will stick with stock 11:1 compression on the pistons. Here is my internal build list. Allot of this is OEM replacement stuff like the bearings and timing chain but just a list what is being done. I’m already running a duel fuel pump setup with a 340 and 450. And I already have a Quaife LSD installed.

RJM CLOSED DECK VHR ENGINE BLOCK
CARILLO VHR PRO-H ROD SET
S OEM WATER PUMP, NISSAN 370/INFINITI
S ACL STANDARD MAIN BEARINGS
S ACL THRUST WASHER SET
S CP VHR PISTON SET
S NISSAN GRADE 2 ROD BEARING, 370Z
S OEM VHR MAIN TIMING CHAIN
S TIMING CHAIN (INTAKE TO EXHAUST CAM
S TIMING GUIDE RAIL (UPPER)
S VHR TIMING CHAIN TENSIONER
S VHR TIMING GUIDE RAIL (RIGHT)
S VHR TENSIONER
S ARP NISSAN VQ MAIN STUD KIT
S CUSTOM COPPER HEAD GASKET (PAIR)
S OEM REAR MAIN SEAL VHR
S VHR ENGINE GASKET KIT
S VHR TIMING GUIDE
S VHR TENSIONER PULLEY
S ARP CUSTOM AGE 625+ HEAD STUD KIT
S BC NISSAN VHR BILLET CRANK
S TRV259 SERIES INTERCOOLER 1300HP

S JOE GIBBS BREAK IN OIL (5W30)
S VHR PRIMARY A/F SENSOR (MANIFOLD)
S INJECTOR DYNAMICS 1700C INJECTORS
S HS IRIDIUM M-SERIES PLUGS (VHR)

Not cheap at all but I only want to do this once so I’m not cutting any corners.

Wait so you are saying that the Stillen manifold can still work with other head units than the V3-SCi trim in that a V7 YSi-Billet head unit works with the stillen manifold?? I could not find for the life of me any kits out for the V7-YSi-B or even the V7-YSi, or any information on the proper piping needed. Are you upgrading your transmission as well I assume or is it already upgraded? Or...does it not need upgrading?

[Bens98gagt]

Originally Posted by cupcakez

Wait so you are saying that the Stillen manifold can still work with other head units than the V3-SCi trim in that a V7 YSi-Billet head unit works with the stillen manifold?? I could not find for the life of me any kits out for the V7-YSi-B or even the V7-YSi, or any information on the proper piping needed. Are you upgrading your transmission as well I assume or is it already upgraded? Or...does it not need upgrading?

Yeah the crank set me back about 3k and I am upgrading the radiator and clutch to the OS Giken clutch. My car is a manual so no transmission rebuild for now. I actually had a long discussion with vortech about the V7 and it will mount the same way the V3 SCI will but the shell is just a little larger but we measured and everything looks like it will clear pretty easily. But Soho has a full fab shop so if we need to modify a bit we could but from what we are seeing we may just add some bracing to the existing mount to prevent flexing at high RPMs and call it good but we don’t really think it needs that.

[cupcakez]

Originally Posted by Bens98gagt

Yeah the crank set me back about 3k and I am upgrading the radiator and clutch to the OS Giken clutch. My car is a manual so no transmission rebuild for now. I actually had a long discussion with vortech about the V7 and it will mount the same way the V3 SCI will but the shell is just a little larger but we measured and everything looks like it will clear pretty easily. But Soho has a full fab shop so if we need to modify a bit we could but from what we are seeing we may just add some bracing to the existing mount to prevent flexing at high RPMs and call it good but we don’t really think it needs that.

Sweet.
So If I ever upgrade to a V7-YSi billet head unit, I know it would fit our vehicles, along with the Stillen Upper Manifold.
I can talk to SOHO about fabricating the parts to have it fit my vehicle is what you're saying? Or did I misunderstand somewhere?

Also, Update on my Stage IV engine from Kyle @IPP:
- I talked to him and he said they would have a pretty accurate timeline on when the engine will be finished / shipped out to me by sometime in the middle of April. I'm super stoked for it and definitely cannot wait until middle of April. Just wanted to let you guys know how the Engine is going

Thanks! (:

[Bens98gagt]

Originally Posted by cupcakez

Sweet.
So If I ever upgrade to a V7-YSi billet head unit, I know it would fit our vehicles, along with the Stillen Upper Manifold.
I can talk to SOHO about fabricating the parts to have it fit my vehicle is what you're saying? Or did I misunderstand somewhere?

Also, Update on my Stage IV engine from Kyle @IPP:
- I talked to him and he said they would have a pretty accurate timeline on when the engine will be finished / shipped out to me by sometime in the middle of April. I'm super stoked for it and definitely cannot wait until middle of April. Just wanted to let you guys know how the Engine is going

Thanks! (:

Yeah it looks like the existing mounting from Stillen will work for the V7 unit. Soho will just watch it closely when they are tunning it to make sure the bracket is solid and doesn’t flex under heavy load. So that is why I said that they might add some reinforcement to the bracket if needed. Not yet for sure if it is necessary at this point. Will follow up with an update soon when we start tunning.

[cupcakez]

Originally Posted by Bens98gagt

Yeah it looks like the existing mounting from Stillen will work for the V7 unit. Soho will just watch it closely when they are tunning it to make sure the bracket is solid and doesn’t flex under heavy load. So that is why I said that they might add some reinforcement to the bracket if needed. Not yet for sure if it is necessary at this point. Will follow up with an update soon when we start tunning.

When you say existing mounting from Stillen, are you saying the same bracket that came with the Stillen SC kits with the V3 head units will work for the V7 YSi unit, V7 YSi-B unit or none of the above and that you just meant only the stillen manifold?

I heard you need to make a whole new mounting bracket for the V7 head unit for our vehicles but I could be wrong!

Reinforcement to the bracket if needed which means the existing bracket that came with the stillen kit for the V3 head units, just adding some reinforcement to that object correct?

Sorry haha just trying to make sure I understand
Thanks for the reply!

[Bens98gagt]

Originally Posted by cupcakez

When you say existing mounting from Stillen, are you saying the same bracket that came with the Stillen SC kits with the V3 head units will work for the V7 YSi unit, V7 YSi-B unit or none of the above and that you just meant only the stillen manifold?

I heard you need to make a whole new mounting bracket for the V7 head unit for our vehicles but I could be wrong!

Reinforcement to the bracket if needed which means the existing bracket that came with the stillen kit for the V3 head units, just adding some reinforcement to that object correct?

Sorry haha just trying to make sure I understand
Thanks for the reply!

It’s all good...

Yes the same bracket that came with the Stillen Kit yes Vortech said it would fit the V7 head unit and we did some measurements based upon some drawings they shared with us and it looks like it will. The V7 and V7 YSIB are the same size so it will work.

From my understanding the 350Z needed to make a whole new bracket because of clearance issues but the 370Zs have more clearance in that area. I will share my final results with everyone when I am done and the great thing about it is that Nick from Soho will have a solution for us if something has to be done custom to make it fit.

Yes if need be we will reinforce the existing bracket from Stillen if we need the added support but I dont think we will need to based upon what we were told from Vortech.