Tony D

As I stated earlier, the result of the kit installation is that the 2-Litre 6 cylinder performed similarly to an N/A L28. For my money, I would simply get an L20ET and install it, or better yet, an L28ET which will outperform this kit out of the box. As with any kit from the period, fabrication will be required for installation. They were designed for shops to install, not the guy on the corner bolting-stuff onto his ride.

JG Engine Dynamics in Alhambra CA did some dyno tests on BONE STOCK 280ZXT's in the late 80's. Without exception, the cars stopped making HP after 10psi. You could turn up the boost further, but it didn't make any more HP. So Tysons claim of 10psi being the limit for a STOCK system is reinforced by Javier's testing done on his in-shop Clayton dyno in 89, 90, and 91. Group Z did a dyno day there in 9X (90 something...) and most of the ZXT's were running 10psi, when they turned it up more, no more HP resulted, so "what was the point"... That RRFPR really helps when you start going over 10psi. The ECU just isn't mapped beyond there, since the stock boost limiting relief valve usually pops off around 9-10 psi. If you have a limiting device installed, why map the ECU higher? Tweak this, tweak that, all bets are off! Then again, a Megasquirt...

My N/A L28 EFI motor (76 California System) dynoed at 147hp to the wheels. Given weight and E.T./MPH most web "1/4 dynos" put the number of my engine at 202hp @ the crank. So the truth of the numbers runs somwhere in between! The plate syas X, and actual applications show something else, but close enough for the "correction factors" everybody is fond of using. Now the terrible truth is that it's an 81 engine with 186,000 miles in a 75, with a 76 manifold and EFI bits. So is it supposed to have 145HP, or 170? Given my 147 Dynojet run, it's dead on. Given the 170 number for the 76, then you add that "correction factor" and it should be 180something, which is darned close to the factory rating of 170... All that matters is that it runs, and it bests most stock Hondas, eh! LOL

I have one of the earlier versions of that kit I harvested while in Japan. It usually is for the L20A version Fairlady Z---it was intended to give L28 N/A performance, but with more torque. It works fairlay well, but as it is an 80's kit, reallys is limited by todays standards: fuel enrichment is via resistors on the cold-start circuit tripped by Hobbs Pressure switches. For a "period modification" the appeal is killer. If I didn't have one already for my L20A, I might consider it for my L28 Fairlady with a turbo upgrade. Now come to think of it, my kit has the blowoff valve incorporated into the "SK Turbo" part of the piping, so maybe this is an older version. I will say the cast iron adapter kicked butt on anythign Crown ever offered here in the states. The adapter for the turbo is quite nice. My kit has a Hitachi Turbo, also---not sure by his photos what kind it is in his kit.

...that sounded familiar, Bob!

"Pickup" in American English means "Ute" in Downunder English! Yes, the Titan is going to take on the American Utes full-on. I think Nissan is conservatively rating this to market better against the market segment leader, the Ford F150 (or "Lobo" for our friends in Mexico...) This should be good. I can't wait. A Titan is supposed to be available at our car show next weekend out in Temecula. Unfortunately I will be owrking that day, so I told my wife to take a LOT of photos.

Most people end up raplacing the "BOV" with a 1" pipe plug anyways. You will for sure if you are going for 350hp...

my black car was similar, and found that by cycling my fans on a bit earlier (before thermostat was fuly opened) I could flow more than enough air over the radiator to bring the temp within limits. The problem with thermostats is that the rating you get is only an approximation. They crack around the temp listed, but are not FULLY open using total radiator cooling capacity until at least 10 degrees higher than what is stamped on them. Ergo, a 190 thermostat is actually a 200, and a 160 actually a 170. I have had good results on the early cars with a 160 thermo, and on FI cars with the 160 or 170 depending on if the sensor is tracking where it should be. For a stock EFI system, as long as you get near 177 degrees, all the "cold start enrichments" should be either totally off the ECU's map, or darn near off! Technically 200 is not "hot" but with the propensity of Nissan Aluminum to dance at that temperature, I'm more comfortable with a max temp of 190, and I get that with a 160 or 170 'stat as referenced above (which is actually a 170 and 180 full-open device)

Shane, I was just at tehir website last evening looking for the SU Throttle Bodies they manufacture, and downloaded the price list. Seems to my recollection the total manifold and triple TB setup was $3480. The injectors go in the Throttle Body, though, not the manifold. You can use any manifold like the mikuini or cannon, but the pre-fab fuel rail may not line up. Making a fuel rail is worth it in my mind since I have triple manifolds hanging out my butt, and paying 648 bucks or the like for another shiny new one is out of my scope of sane thought...

I posted above, before seeing this post. Apparently there ARE Megasquirters here... Soon my kits will arrive, and then I can be a contributor.

I wondered if anyone here is getting the Megasquirt EFI Kit here on this board? I have three kits coming this month (hopefully not while I'm away at Bonneville) and will start developing some N/A and Turbo tables for the thing on the L-Motor, I just don't want to tread over someone elses' development --- if someone here has baseline tables for their setup that I can upload, let me know. Thanks.

There is a unit available in the UK through the Demon-Tweeks catalog that is of particular interest, as it has a logic controller, and uses coolant temperature to vary the speed of the pumping unit for use without a thermostat. It goes in the lower radiator hose. Looks interesting, and several sizes were available depending on HP of the application. For the life of me, I can't remember the name now, nor can I locate my latest Demon-Tweeks Catalog. BAH!