With race gas.....or at least 100 octane I hope. You'll be fine.

 

Awesome, keep us updated.

Did you do the head strengthening mod as well?

 

you're a confident fella

 

Hope your not talking Dastek Dyno numbers, J/K Looking forward to seeing that chart, What setup are you running and what dyno will you be using to measure the power? This should be exciting! Good luck!

-George
GT Motorsports

 

In my opinion there are 2 great tuners as far as performance and customer service and that's SGP Racing & Forged Performance. I've worked with Shariff and Mark, both are very knowledgable gentleman. SGP is closer to me in Kansas City than Forged and Mark has has been doing this for a long time.


It's true nobody knows the limit of the stock block but as Sharif mentioned I too wouldn't be suprised to see 650-700rwhp possible on the stock block.

I've just got the full upgraded oversized valvetrain and V-Pro, SGP dump pipes, solid engine motor mounts, L19 head bolts, HKS head gasket (got rid of the UTEC) and my biggest/limiting factor is my singe 3" exhaust and stock greddy downpipes. But Mark assured me that he could get 680 out of my current setup w/ race gas of course.

Just like Sharif said, 700rwhp is just around the corner

 

thats still more east coast..there are other good tuner in the west side too. I trust intense a lot...

But if i were to live close to spg or forged, yah no brainer, no other place to go for your Z "needs"

 

Ill be root'n for you!

 

Ok i will answer a part of that question and i think i can help a lil in ur project mine is nearly over and i havn't tuned or dynoed yet but U know when ur top no. 1 tuner say i will shoot my self if u dont get 600whp so he is prety sure... any way head studs L19 with a good nismo GH. u will need to get the main studs changed to ARP as well as u need a nismo thermostat these r the stuff that coz u trouble ow and i almost forgot u need a good redaitor cap if u r not changing it all coz the 1 thats on will leak with heating.glad to help u man and let me know if i can do any more..

 

and I'm getting ready to push 600 WHP so if mine does and I pray the LORD not to then iwill let you know...

 

I can attest to this having just done my own block myself, the labor it takes to get every thing that has RTV on it clean is a pain and there is so much involved and so many parts to this engine you want someone that takes their time doing it, when people budget for such big work they should pad it by 20% at least to be able to handle the extra costs which add up, been there done that got the t-shirt.

 

Thanks for the kind words Trefling. Best of luck...I have a feeling you and Mark will be successful in your pursuits.

 

I have over 9k miles on my built motor stock sleeves running the Ultimate @ 538whp w/no trouble. Mark (SGP) put in the V-Pro and he is tuning it this weekend for 550-560whp. Most folks I talk to think the stock sleeves with hold over 700whp w/mass amounts of torque. Of course, we'll see...

 

maybe the unsleeved bottom end (with forged pistons/rods) CAN handle 700rwhp...that would be great! no one can definitively say for sure..yet

I am willing to bet that a stock bottom end, with ARP 1/2" head studs will be the setup that can handle these high numbers, possibly not requiring sleeves...

 

You're not implying that the stock rods can hold massive torque numbers?? You must be implying stock block meaning no sleeves...

 

yes of course, unsleeved bottom end with forged psitons.rods..sorry

 

FYI,

I know of NO CLAIMS of 600+ WHP on the standard BB530 kit. If yes they aren't coming from VRT.

Funny how this stuff keeps getting discussed without any claims from VRT. However, 600+ WHP on the modded BB700 kit has definitely been duplicated 5 times and we are working on 3 more projects as I write this.

So Alberto YOU ARE CORRECT, the standard JWT can't flow enough air to do 600+ WHP. However, the Modded BB700 kit can without a doubt.

And non of these projects have been sleeved. There are probably circumstances needing sleeving IF YOU WANT AND NEED THE PIECE OF MIND, yet the limitations of big power isn't wether the VQ can handle it after Forged Internals and excellent tuning, but how to supply the fuel.

We are working on voltage modifications as well MAF and an even more efficient Boost Pressure Regulator to help supply more fuel, but there is a limit on the in-tank system. I know we have reached the limit on my G35 and could have never reached high numbers without MORE VOLTAGE to the fuel pump...

Thanks...And You are right about the standard BB530 JWT kit...Flow a max of 500+WHP. If you are looking for bigger numbers than 500+ and want JWT, you need the BB700 upgrade. And OH Yes, all using the Split Second...

Peace....

M

 

VRT, are you using the stock fuel rails when making 500+whp? And are you using L19 head studs? TIA.

 

Stock Stuff - stock studs, and NO RETURN FUEL system for the larger BB700 JWT systems...Although we have used these for a few recent Big Greddy projects as the clients supplied the equipment.

M

 

Impressive. Regarding headlift, do you re-torque the heads after a heat cycle?

 

If needed.

We have many clients that track the cars HARD so that is one of the tune-up procedures, as well as bleeding the coolant systems, etc.

We try to keep them healthy Lap after Lap and heat always sucks. The weather is cooling here in Cali so that is always good.

M