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roger280zx

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Posts posted by roger280zx

  1. The C4 rear end has been done several times and is pretty well documented. Not sure what you mean by this: "cut up a Corvette rearend to match the front to equalize track width to gain handling.". Most of the best handling Z's have more attention paid to the FRONT suspension. I'm not telling you not to do it, hell I think its a great idea. I just hope that you're doing it for the right reasons. Most of the C4 IRS Z's I've seen where built that way for drag racing... gears, lsd's, weight... while retaining the handling characteristics of an IRS car. I would never have considered this swap to be one engineered to enhance handling.

  2. The L28 block bored will be more reliable than a 24 at the same bore. That with a p90 head and e85 will be a monster. And a more reliable monster than it would with the 24 block. Yes 87.5 may be acheivable in a 24 block, but you might have to try 3 or 4 before you found one to work. What is the objection to the L28 block? They are a dime a dozen.

  3. What I would like to know is... will more mufflers muffle more, or is there a diminishing returns type deal going on?

     

    What I'd like to do is stick as many glasspacks as I can anywhere they will fit--but only if it would actually make things quieter. Or, what's a good chambered design that muffles well... while not restricting flow?

     

    I worked on a Rolls that had either six or eight mufflers and a pretty big V8. It was quiet as a mouse while driving, not sure if it was the mufflers or the dense deep carpet on the floor. The best way to muffle I have found is to put a hair dryer on the manifold, but that is off topic.

  4. What johnc said. It would be easier to cut open and port a stock mani. The clifford is a pretty good flowing piece, but for what you'll spend on a 4 barrel tb and complicating the pluming your better of with a tradition setup. A mustang tb is $25 at my local yard, that's what I'm adapting to stock (ported) runners and a sheet metal plenum. But I'm a cheap a$$.

  5. What we need is some one making valves with modern stem diameters. There is a lot of flow to be had dropping from 8mm to 6mm. When I talked to Ferrea a couple of years ago they said 6mm is pushing the durability of a valve with a 44mm head, but the exhaust size of 38mm or less would handle it just fine. Dropping to 7mm on the intake is feasable and you gain +/- 5% flow per mm of stem removed with basically no loss in velocity. The weight savings is worth mentioning as well, since weight off the valve only means the spring doesn't work as hard. I have a set of stainless valves for my turbo build, but it would be interesting to see what a smaller stem valve would do for these old heads.

  6. First of all a limp clutch pedal does not a rebuild make :huh: Put a slave cyl or master cyl in there and keep driving her. If you still have the desire to spend your 10k buy my car. Haha, now seriously. All of the above are good answers, and I'll have to agree with BlueDestiny. Unless your only concern is drag/street racing 300hp in a properly suspended and lightend car is better than a stock flimsy 280zx with 400hp. My sugestion; suspension, wheels/tires, clutch/flywheel, lsd, bolt-ons,stand alone,$$$TUNE$$$, spend the remainder on track days and tires. I'd do the engine when something breaks, but that is just me.

  7.  

     

     

    count your blessings and be happy your car is just getting THAT much more rare.

     

    I guess, but I never sought the s130 to be a particularly rare car. There are some rarities like late slicktops with few options, but that has never been what I appreciate about these cars. The affordability, strong chassis, better rustproofing than the s30's, decent aero, light weight, large engine bay, adaptability, etc... are some of my favorite things about these cars. Unfortunately the very first one, affordability, along with rwd has volunteered the car to the drifters, even though its performance of the fuction leaves much to be desired. But then again "performance" and "function" are words that do not properly translate to the language of the drifter. I digress

  8. The most fun I have ever had in an automobile was in a modded GSR Integra. +or- 230 whp b18 (read high comp. BIG cams) probably 2700lbs with two slim dudes in it. Running through the mountains of Tennessee, quickly through second gear 5000-9000 rpm, over and over and over again. A balls out shot down the interstate would yeald a hellish 160mph, though it took much longer to get there than in a modern muscle car. I've not been in a GTR or TT911 or a ZR1 (yet) but the 750hp super snake was; though incredibly fast, it was equally boring. This is basically the argument made by Porsche guys for the last 40+ years. With every generation the technology allows more and more power, newer models benefit further as tire and suspension technologies advance. Yet all the leather, sound depression, and cup holders in the world could not replace the sensation of being near the limit in a 930. Knowing that the slightest mistake could mean swapping ends and leaving our world in a firey mess of twisted metal and fiberglass, hoping only that you reach the big road course in the sky. Its an age old topic. What is interesting is in the new Subaru/Toyota they have plumed part of the intake into the cabin. Resulting in more engine noise in the passenger compartment. Leading back to the point that a quick revving tossable car that makes cool sounds is better to drive than one that can melt away your license before you hit 3rd gear.

  9. At last! I've been working on a lot of those mustangs and have been wondering about those vents my self. It looks really good BTW. Did you just pick them up at the parts counter? How much $$? Any mods to the vents? What year model are they (as they look a little different than the '12s or '13s I've worked on)?

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