I will have some video this weekend. Had to make a modification to the intake.

 

Honestly no matter what you do with the ISF it will not compare to the GTR as far as performance goes. I don't know the details on the power thats been added to your ISF but you will be very satisfied with a GTR. People always think that since the power of the cars (417hp vs 485hp 2009-2011) are close that the performance will be similar but again it feels like night and day especially with just a custom tune, mid pipes and exhaust. Once you add very few mods to the GTR which probably cost a lot less than adding the supercharger to your ISF you could get over 130hp and have a 10sec 1/4 mile car on stock 20inch run flats and thats something only drag radials with a big shot, turbos or hopefully your supercharger which again will cost a ton of money to do. Again don't get me wrong I love my ISF but unless you just want the exclusivity of having the only supercharged ISF that took forever to complete with your car having a ton of downtime at a unknown price tag $$$$(I am sure it cost more than the $$$ I spent in mods for the GTR) and questionable ECU support and tuning I just don't think it is worth it. The ISF IMO is not a tuner friendly platform and Lexus wanted it to be that way it seems. The most I would ever do performance wise to my ISF is maybe a intake and exhaust but to each there own. The ISF is fast but the GTR is F'ning fast and if you get the new 2012 you will have a car fresh off the lot that will do 0-60 in under 3 secs. Yes you can tell I love my GTR

Anyhow you have a ton of guts and patience to do what you have done with your car. I wish the best out of this project for you and the ISF community.

 

if $$/hp is your arguement you may as well get a ZR-1...this project including the cost of the car still probably considerably less than the price of a GTR. I'm not hating on the GTR but I will be VERY surprised if a supercharged F isn't capable of competing with and beating modified GTRs. We've already seen that 650hp is possible on a stock motor with forced induction

 

The revised suspension on the GTR is leaps and bounds over the ISF. And like kickhard said. With a midpipe and tune you can add lots of horsepower for cheap!

Take a look at the new 2012 GTR. 0-60 is fast as hell.

http://www.youtube.com/watch?v=rNT2UijpCMs

 

They are two different cars for two different markets. That being said i am still under the price of used GT-Rs with what i have into the car including it so far. Who knows after my next deployment to Afghanistan i might just sell it and find a used 2012. but only time will tell. Till then im enjoying my ride and trying to get it to SEMA next year (anyone want to help?)

 

launch control IS awesome but that was a Z-06 not a ZR1 with 638hp. Anyway I'm not trying to hi jack this thread I'm just excited about splats car

 

my argument here is not about $$/hp

I highly doubt the price of lost time with his ISF sitting in someones garage(even the owner was not satisfied with the time frame he has been without his car), plus the cost of developing, installing a one off supercharger kit, plus tuning it will be cheaper than the price of a what my 09 GTR cost which was msrp76500. There is no way my friend. The price of a new 08 ISF is around msrp61000 which leaves us roughly 15k. 15k is a drop in the bucket when it comes to modding a car and when it comes to a one off kit on this car which sat it seems like a year without being used.

The cost of my mods on the GTR so far: mid pipe $600 - cobb tuning with custom tune $1300 - exhaust $1200 - cobb intake $700

Total=$3800

The whole point of my post was not about $$/hp. Its about usable power, sensible power, putting down that power to the ground effectively, and not a dyno queen unproven 1/4 mile time power. Yes you could just buy a ZR1 I suppose but with the tons of reliable 650hp ISF's running around why get a ZR1. We really have seen only a handful of proven "dyno" ISF's to date which is quite alarming honestly. There has been maybe 1 on here that has had a dyno to back up the acclaimed number. I would rather not be the pioneer on such a project involving my 60+ thousand dollar car. Almost all of these turbo ISF's are hack jobs which screw up the car most of the time.

If this car does make the power we all hope it will it would be useless in the first 3 gears on anything but drag radials. Also when you mod a car to this extent you totally change the character of the car and so far in this case it has been mostly bad. Anyone who is going to make serious power with the ISF will run into a host of issues which no one really has been able to test yet. Transmission? How much boost can the high compression engine take and for how long? Drivetrain? What part of the engine is the weak link since there have been so few pop due to high hp applications. It will take a seriously well thought out supercharged ISF to out run my GTR. I dont think you really understand what it would take to transform a ISF to do this. The ECU, fueling, and I could go on and on. Its much more than just popping the hood and dropping in some go fast parts

If you think a running modified ISF will be able to beat a modified GTR then you have no clue to ability and moddability of either car. I do because I have both sitting in my garage. I am not hating on the ISF but I understand its potential and its limits. For me the way my ISF sits now is just great. I would only add an exhaust and intake to wake up the exhaust sound a bit. I have the GTR to go fast. Again there are a ton of unknowns when it comes to the ISF platform and when you quote the "proven" 650 hp ISF you can only come up with the one and only example which was a prototype car that never ran a decent 1/4 and seems to see more owners and shops every time I run across it here on the forums. It will take a ton more money for a ISF to beat a GTR on the track or down the 1/4

I think the best way to get good power out of the ISF to date is to just juice it up with the bottle. I think but am not sure I heard of someone running a 100 shot easy :-)
What is the fastest a modified ISF has run or trapped in 1/4?

 

I'm going to agree with kickhard on this one, the GTR has been tried and tested repeatedly while the ISF is still in virgin territory. The modded this vs that discussion has been there till the end of time. Could you make a GTR beating ISF? probably. But will it be consistent, reliable, and daily driveable like a GTR would? Probably not. Any time you turbo / sc a car that hasn't been designed to do so you will always run into issues. What happens when it breaks down? have it towed several states away to get fixed again? What if a part breaks, you only have one source for a new one. What if that tuner/company goes out of business? Its a big gamble and splat has some ***** for undertaking this but I'd take a lightly modded GTR vs a heavily modified boosted ISF any day unless you can afford a lot of potential down time or not using it as a daily driver.

Oh as for the GTR v Zr1 debate it would take a very skilled driver to get the most out of a ZR1 while your grandma could drive the GTR and pull record laps. Even the Z06 with less power is a tricky animal. Shoot my brother has 345 rear tires on his bolt on Z06 and I can break em loose easier than stealing candy from a baby. I'd say the ZR1 could be more exhilarating but in anything less than a straight line it would take a good driver to make the ZR1 live to its potential.

Also it heavily depends on the race. 0-60 for the ZR1 is 3.3 and the GTR is 2.8 1/4 mile is 11.1 ZR1 and 11.2 in the GTR/ From a roll the Vette has it easy but like i said the GTR can do it with a grandma while the ZR1 wont without skill. When it comes to skill most people greatly overestimate their abilities. Especially with ZR1 power.

 

That is where i stopped reading. Maybe you paid 61 for your car but I can tell you i paid no where near that! Also I am the one running the numbers and know what I have spent and yes I am being honest when i say what i have invested is still no where near what a used 09 GTR costs.


Also like i said two completely different cars and markets. And i havent lost anything except time with the car while it was gone. I have been fortunate enough to have a car whenever i need from ISSForged, Janoy has let me have a vehicle from day one when the car shipped off a year ago.

 

This is what i hear from GTR owners after the vetts stretch their legs


Like Splat said, two completely different markets.

Though i highly doubt that his car will be anywhere near a bolt-on GTR, I wouldnt count it out. A bolt-on GTR is a great car for track use, but on the street ill pull one without an issue. Also, we should take into consideration that a GTR needs considerably more HP to be door to door with my car. As an all around street warrior, the GTR is phenomenal. But for considerably less money, a properly modified isf will have its way.

On a side not... My ISF turbo build "Should" be done by the end of next week. Exams and work will probably take my attention and prolong the process but well see how the week goes. When its dont ill let you know how much a GTR gets killed from a roll

... Please, dont call me an ISF fan boy because im actually in the market for a GTR ...

 

Just to clarify the video is of a Z06 with the "ultimate performance package" Not a ZR1.

 

I get back from antigua wednesday we need to meet up, id love to go for a ride in your F and talk shop about the cars. Once i get mine back get you behind the wheel you know.

 

Though its not a ZR1 it cost 98k

Sounds good. Just send me a PM.
Has Andy figured out a way to help with the heat soak? I honestly believe that if your able to take care of things in that area the car is going to be beast.

 

I was on top of that from day one. we are running the aquamist HFS-3 system. Plugs into the aem fi/c-8 and has safeties built into it on multiple levels. Just got a call actually literally a few minutes ago he is out and driving it around. It is running like a champ and the boost is going to be turned up a bit. Should be on the dyno by wednesday! Also adding a aem wideband in the glove box to help keep and eye on things.

 

Hey Slay who is building is your turbo? Are you in the market for a new '12 GT-R? Post up the final numbers when your setup is completed.