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At peak power the difference is likely within 5-10hp. At low to mid RPM the mandrel merge system I describe creates much more scavenging and therefore power/torque/response than the crush bent 2.25" system. It is the first section from the cats to the Y that has the biggest impact. This is...

The stock Y as noted is excellent but since it is gone you have to fab something. The SHAPE of the merge is important as are the tubing sizes used. The internal X muffler is interesting but I haven't used one so can't tell you what to expect from performance. You PM'd me that you will...

What is your goal? ITBs look fancy, have quick throttle response and sound interesting BUT... They will not give you ANYWHERE near the power and torque curve of even a low boost FI system. Tuning is complicated, air filtration, hood clearance, linkage syncronization and more make for a...

Actually I believe they are nearly the same with the exception of the flange being larger to mate to the newer catalyst flange size and the absence of an EGR port flange. They are shorter than the GS4xx manifolds which are shorter than the LS400 VVTi manifolds. This is IMO one of the...

Didn't realize how powerful that 1uz is that you built. Great job! Very cool that you got nominated and great luck... that said that 59 Cadillac is just over the top wild. http://smoty.com.au/comps/smoty2011/carpdfs/14_Oct2010_cad.pdf

Wow... you doubled the power. Customer will be pleased! Looks like the catalyst are removed along with the stock air cleaner to throttle body components. The second part is probably the missing 10hp or so from typical 175rwhp dynos so you got it back to normal. I bet with the stock...

John, so you would run the SPAL fan controller powering two fans as though they were one 20a fan? Why not go ahead and get a second relay along with the controller and be able to run the fans independently in staged format? This would alow "tuning" the fans for minimal noise. Start one fan...

Brad, while the low end torque of the supercharger is always nice it would seem that 400hp (engine? wheels?) is relatively mild for a 5.2 liter DOHC engine. Obviously something with more capacity than that M90 is needed. I see why turbos are the new plan. Either that or sell the TRD setup...

Brad, Thank you for your imput. For anyone that is unfamiliar with Brad and is craftsmanship you should visit his site: www.bedellracing.com He has done many projects and for Lextreme'rs interest his beautifully done Lexus IS Sportcross which he has completely rebuilt more than once...

Instead of games the thing is designed to be programmed running ACTUAL Formula 1 data or any other actual racecar and racetrack condition simulation. That said more than a few online car nuts have spent MORE than this thing costs. This allows you to actually DRIVE without consequence! I...

This is too cool... Expensive but imagine the driving possibilities! http://www.youtube.com/watch?v=hNWJ3Pqt-wE&feature=related

Sean, thank you for the offer. I am undecided on my plans for the car so I am holding off for the moment. Interesting thought about removing the heat shields for a low mount or even twins.

Been busy with other things and no progress has been made. Honestly with 183K miles I am wary of the engine and trans taking more abuse than stock. This means a bigger project than time permits for the short term. If I had an early 1uz with the stronger internals and the 4 speed that would...

What pipe size are you running from the manifolds to the Y pipe? For NA relatively stock engines (up to 350hp flywheel) I recommend 2.0" or (hard to find 2.125") tubes from each manifold/header outlet to a single 2.5" center tube with a GOOD (factory is very good) merge. The Tundra...

I run 5w-30 year round in my 1999 LS400 VVTi

People either spend a large amount (much more than originally planned) to have a shop build their car OR they are DIY types that build part by part and LEARN a great deal about the way things work. This learning is a journey that many of us enjoy and find fascinating. Anybody can buy power but...

Superclean and understated. Interior pics? Debadged I bet many don't know what it is or what year. Probably think it is fairly new.

The stock intake is a nice part with dual length runners. Inside there are 8 individual throttle plates to shorten the runners at engine speeds above 4000rpm. If you want the TBs for the look that is one thing but the stock intake will give more low speed torque and likely be close to the...

Wow... nice work! That said "lucky" may not be the right term... more like most unusual! I don't think I could avoid driving any special car given the choice. Most lucky is going to have to go to someone who destroyed the Ferrari they owned and no one was injured. Followed by the Lottery...

Keep in mind that the current HP specs are lower than in 2005. The 2005 3uzfe in the LS430 was rated 290hp while the identical engine in 2006 was rated 278hp for a diff of 4.3%. Not sure how linear this is but 429hp today is closer to 450hp in 2005. Even more perspective is the 1990 1uzfe...