Search results

A twin mount, is actually quite common. Mount it parallel, just like pressureside on twin turbos, with a well designed system, you get the small superchargers flow and parasitic losses times two. You controll boost with pulley-sizing and use two tb before the sc:s or individual tb:s per runner...

The cores are intended as removable and serviceable! On occasion, just unscrew and slide it out.. some cleaning later and the core is back to 100% efficiency - or safe to re-use if it´s an oil cooler that has been contaminated with debries from a failure.

These are the Laminova cores I´ve been saying good things about in other threads. absolutley choice no 1 for a plenum mounted intercooler but also superb for a top mount.

Yes, it´s possible, you just adapt the pulley-sizes to get the correct gearing for your alternator so it won´t over-rev. As you say, it´s not a daily driver solution for traffic jams... but it works well on a race-car that´s constantly moves forward.

Nice! thanks! =)

You almost always must have a restrictor in the oil line to a turbo, measure your oil pressure and line diameters and call the firm from where you baught the turbos, they should be able to help you. If oil pressure is higher than the turbo can take, its a matter of hours (or worse) before it...

The 4-way alu coupling, is that a pressure relieving bypass valve?

I think there´s some missunderstanding, since you´re talking about oil contaminiation and he´s talking about cracks. After have seen 6-7 failures (of various bearings, 3 turbos and so on) that can be traced directly back to contaminated "bargain" oilcoolers (findings of the same debries inside...

You are correct, the test pressure wasn´t higher than 18 psi so I can´t say anything about the higher pressure range, it´s absolutley possible that autorotor has an edge there. Mercedes C-Class and SLK Roadster uses Eaton superchargers, the AMG V6 and V8 has a Supercharger that my Mercedes...

The article was written for a couple of car-magazines, and is not on the web. The article was an overwiev of different superchargers, and mainly discussed the differences between roots superchargers, helical twin screws and centrifugal superchargers. The angle wasn´t to decide wich was the...

I´ve written a comperative article in this matter, unfortunatley the article is in Swedish, but the conclusion of superchargers efficiency related to: # pounds of air per hp (hp wich the supercharger needs) # psi per hp # psi per degree of heat is that the most efficient supercharger is...

Marketing bullshit?? :feedback: maby you can validate that statement with som info? Single V.S Twin turbo (both in optimum setup): An optimum single setup can pump more peak hp because larger turbos can be built more efficient than small. An optimum twin setup will spool faster and create...

Thank you Lex! Looks like the ports on the 1UZ is straighter than the 2UZ, but the 2UZ port sligthly wider? How are the valve angles on the heads by comparison? Anyone knows about the flow potential on the heads after porting, valve job etc? - wich casting that has the most potential?

Striker << Many N/A engines with <100 bhp/litre have OEM mounted oil squirters to be able to run tighter clearences. Most people in here is aiming at 150-250bhp/litre wich IMHO makes oil squirters a must (for durability).

Why bother? Melting pistons isn´t the biggest problem here, one could already get 1000+ hp without oilsquirters, but if we want to build a engine for a streetdriven car or a daily driver, we definetly need oil squirters to be able to run with steetengine clearences, not preheated raceengine...

A "how to" forum with moderated step-by-step threads with topics like: "retrofiting oil squirters on xxx engine" "xxxx copper head gasket installation on xxx engine" "installing the 2uz crank in a 1uz block" and so on... Add some pics, a note of wich tools that are required...

Lex << could you take some pics down the intake and exhaust ports? and some pics that shows the angle of the ports? And then maby you or someone else could do the same on the 1uz heads for comparison?

does anybode know the rod stroke ratios on the nissan VH, VQ 41 and 45 engines?

If the engine doesn´t have separate throttlebodys, the vaccum inside the plenum/manifold when of throttle, like when braking after a high speed run, can in some cases draw out much water in short periods of time. I don´t know what will happen with boost, probably a lot less! If the low...