2002+ Q45/2003-2004 M45 Brake rotor comparison

[marksport]

I don't think anyone expected these cars to depreciate as fast as they did. Chances are that the owners wanted something newer/faster. I know lots of people who spent $30K plus in parts just to start off on a new project when the old one is done. I just bought a Porsche 944 motor , the owner spent about nearly 3x the sale price to build it and realized after a week that at 450hp, it's too weak for his taste. He ended up with a 700hp LS1 installed. That LS1 cost even more than the first motor. And he's selling it to start something new.

[maxnix]

I don't think anyone expected these cars to depreciate as fast as they did. Chances are that the owners wanted something newer/faster.

I know there are a lot of people, especially in SoCal with more dollars than sense, but it is not a model I would wish to emulate.

Remember, a lot of aftermarket vendor's products, especially when it comes to engine "bolt-ons" are not based on good engineering and research. Keuylian could have made a good business on their superchargers alone if it worked well and could be adapted to the VK56DE. But they are out of business. Never could understand why so many went to Seattle to die. Something is rotten in Denmark.

My leading suspect, if the engine did produce all that power, would be the lightweight 5 speed auto designed for the V35 and adapted to the F50.

[marksport]

I know there are a lot of people, especially in SoCal with more dollars than sense, but it is not a model I would wish to emulate.

Remember, a lot of aftermarket vendor's products, especially when it comes to engine "bolt-ons" are not based on good engineering and research. Keuylian could have made a good business on their superchargers alone if the worked well and could be adapted to the VK56DE. But they are out of business. Never could understand why so many went to Seattle to die. Something is rotten in Denmark.

I don't have that much money either, just good knowledge and determination. The engineering on this kit is hard to judge. I can tell you that the manifold it second to none it is a custom cast aluminum unit. I talked to a few companies and mechanical engineers on the cost to make one or replicate this one and, the cost is more than 1/2 of the SC kit price. It had Laminova heat exchangers built into the manifold, air to water intercooling. The rest of the kit seems to be well built. The SC is an Opcon Autorotor, one of the best if not the best and most efficient SC on the market. The only question that I have is whether the motor can take the boost.

I have Level 10 modify and recalibrate the valve body for the extra power. If the transmission dies, I'm going to have to get a PTS Bullet Proof Transmission.

[maxnix]

The only question that I have is whether the motor can take the boost.

I think that is a valid concern. Seems like rebuilding it with forged lower static CR pistons, increased flow oil pump, and squirters to the bottom of the piston would be imperative for any type of longevity. Then one would have to address the increased thermal load. Don't know about the crank bearing area either. Tons of difference between any NA and Boosted version of the same engine like the VG30DE and VG30DETT.

There was a rumour that the kit was engineered down under, but I have never seen a trace of it mentioned on boards from there.

[marksport]

I think that is a valid concern. Seems like rebuilding it with forged lower static CR pistons, increased flow oil pump, and squirters to the bottom of the piston would be imperative for any type of longevity. Then one would have to address the increased thermal load. Don't know about the crank bearing area either. Tons of difference between any NA and Boosted version fo the same engine like the VG30DE and VG30DETT.

There was a rumour that the kit was engineered down under, but I have never seen a trace of it mentioned on baords from there.

I'm building this based on the VQ engines with bolt on SC such as Stillen and HKS.

As for this being engineered in Australia, I've heard the rumors as well. Opcon is based in Denmark and Kenne Bell was their big distributor here in the US. I can verify that this kit uses the Kenne Bell Billet Bypass Valve.

[maxnix]

Too bad they try and secure information, when all you have to do is read the info and make another writeup using yours as a source!!

About ten times the posts here compared to the same thread on that Far Away board.

[maxnix]

I'm building this based on the VQ engines with bolt on SC such as Stillen and HKS.

Well, there were a lot of boosted build ups of VG30DE, but they never seemed to last as long as the properly engineered VG30DETT.

One thread that is worth reading on FA is the G35 series of the guy who built up his VQ35DE into a twin turbo set-up. Costly, but done right.

[marksport]

Hehe, tho it drifted away from the brakes to my car buildup.

Falk, I was going to try and contact you when I was down there in August but I didn't have time. I'm not going to go into the attrocities that this car inflicted before I bought it.

[AZhitman]

I'm a firm believer that a quality, hub-centric, bolt-on spacer such as you have (and I used to) will provide no ill effects at all.

Again, no one has mentioned spacers. I ran a set of bolt-on 25mm's on all 4 corners of my G35C for about 5 months (proper bore and high-quality) with no issues.

Mark, I'm interested to see how the rest of this project pans out. I have not heard good or bad about the K SC kit, but I *would* love to see Stillen adapt their kit (using tried-and-true hardware) to the Nissan 8.

[Falkdesigns]

No one mentioned the spacers? Well, I did bring it up because they always get a bad rap, and I couldn't believe that Brian, of all people didn't have a coronary over their use.

Oh, and Mark did mention them:

...... The spacers are a must because there is not enough wheel spoke clearance with the factory 18" and 20" wheels. I chose hubcentric spacers because it would reduce if not eliminate wheel viabrations and also because I don't trust the studs to take the load of the car if the hub rings are gone. I remember a bus a few years ago had a broken stud. The increased load on the remaining 9 studs caused them all to shear off. The wheel came off, rolled down the street and struck a pedestrian, killing her......

[AZhitman]

No one mentioned the spacers? Well, I did bring it up because they always get a bad rap, and I couldn't believe that Brian, of all people didn't have a coronary over their use.

Oh, and Mark did mention them:

Mark's post was AFTER you brought it up.

No need to stir the pot, Kevin. No one rattled your cage.

[elwesso]

I really hope this car turns out how you want it....

(still I like the VH as a boosted platform much better, same engineering as the VG30DETT except with no turbos)...

That screw SC is about as good as it gets as far as roots type SCs go, still not quite as efficient as turbos or Centrifugal SCs, but it makes for a nice package, since youd be hardpressed to put a centrifugal in there (but you could)... Not to mention its already produced!!!

What engine management does it run?

For the brakes, as long as you realize that you probably could have achieve the same with a racey pad... Im not really sure how youd be braking enough to get that much fade, especially since I havent seen any suspension mods to indicate you might be road racing or something of the sorts..... maybe thats in the future... REGARDLESS, i really hope you plan switch to some very high end tires to take advantage of those new brakes!!! Might consider going to a Z32 rear brake (same brake torque and rotor) but would give you a nice floating caliper so itd look better than the sliding caliper...

Id probably go with a IPT trans, L10 isnt bad, but ive heard better things from IPT... I would also be SURE to go with a billet torque converter, that is the weakest point of the trans, even if its rebuilt....

I really hope this car turns out how you wanted,because you are surely too far in to back out now!

[maxnix]

(still I like the VH as a boosted platform much better, same engineering as the VG30DETT except with no turbos)...

And a cast iron block.

Those crazy Australians like the VH series boosted better than the RB (again cast iron block) series.