Low Compression 1/4 Mile Times FYI

[280z/300zx]

I was wondering what happened to you and then I find out today that you got banned from zcar.com. Anyway I guess your post got pulled before you could answer but I wanted to know what the elevation was at the track you raced. 15.0 is pretty impressive for your set up but not unbelievable IF you are at sea level. I'm not sure you'll hit your goal of mid 14's but I do see high 14's in your future with good tires, tunning, and practice. Personaly I've given up on trying to hit my best times. I know what she can do and I don't need to be going to the track every week to try and accomplish it. Not to mention this high altitude I'm at just discourages me anyway as it slows my times down a lot. One of these days I'll need to hit Fontana to do some lower elevation testing, even that track is still at 1000ft. I think the closest sea level track to me is Ca speedway but that is only a 1/8 mile track which I'm not interested in at all. Anyway if you ever need some help or just want to chat hit me up. I'll be visiting here more often now, as always on zcar.com and z31.com, and I visit hybridz.org sometimes. See you around.

[Tony D]

"From the many posts he has made about it I have gathered that it had: K&N filter, 60mm AFM, 60mm TB, ported exhaust manifold, 2.5in exhaust, and drag radials."

It has a K&N filter in a stock Housing.

It has a 60mm TB, which does not add horsepower, only better tip-in.

The Exhaust manifold is STOCK, I have never said it was ported, EVER.

I do not own Drag Radials. I run on the same Dunlop Sport A2's I have always run. They are a whole $43 a piece, mounted. They are a 40K mile rated tire.

The exhaust is a CRUSH BENT 2.5 (I think, it may be a 2.25") that the P.O. installed. I ADDED another muffler to the system because it was too loud,IMO.

The Engine came from an 81ZX 2+2 with 186,000 miles on it.

You don't "see" the bashing because you wern't around for it. Spud, you are still bashing my performance.

My 1/4 miles times did not change more than 0.1 second with the T/B and the K&N filter.

I guess that makes my car a 15.4 second car, and not a 15.3 second car.

My 260 runs 16's. With Flat Tops.

Sorry

Don't mis-state the facts regarding my vehicles.

Talk about bashing. To do it to one's face is one thing. To do it behind their back... welllll....

I suppose Richard will be happy to see I have arrived here. He's been bugging me to come and post here for a while. Richard from Empire Z, you out there?

[Tony D]

BTW, the track at Cal Speedway is 1/4 mile NHRA Sanctioned.

The track at Irwindale is 1/8 mile.

I do not know what the Banning Drag City facility has for distance...

[spudea]

Yeah I figured after this thread was posted on zcar.com that you'd respond. Point is it wasn't stock. So please refrain from mentioning it as such. What was your MPH in the 1/4?

[spudea]

Oh and track sensors can go bad and be wrong. It happened recently at my 1/4mile track. People were getting about .5 faster than they had ever gotten on the same setup. A bone stock 350z ran a 13.4, 1.6 60ft, with an amature driver, which is impossible. With those mods, a 15.4 isn't unbelieveable because it would open up your top end considerably. But a 15.4 with a stock z that would be lucky to break 84mph in the 1/4 is unbelieveable and impossible. So never claim to have run a 15.4 in a bone stock Z again please.

[Tony D]

yeah, the track equipment was wrong.

For all 26 passes. Even though it was right in line with the G-Tech that I'd done almost a year before. I kept getting told my G-Tech times were wrong, also, until everybody at the Convention witnessed my car do it, and then inspected the car and confirmed it is nothing special. Which was my contention all along.

The guys there in the 280 coupes running 16.45's cursed me, too. One guy swore at me because his 75 280Z Coupe with headers, and Big Throat T/B, and a REAL cold air kit and cone K&N Filter (not a K&N Stock Replacement filter in a stock filter housing running the full silencer snorkel) and some nice shiny silver paint was consistently 1 full second plus slower than me EVERY TIME WE LINED UP. After 8 runs, he gave up, and started swearing at me.

My car isn't pretty, but it's consistent.

Like I said, there is bashing of me that goes on---this is a good example. I know what my car does, and has done.

Because some people can not conceive it in their mind is their problem, not mine.

[spudea]

yeah, the track equipment was wrong.

For all 26 passes.

of course it was. Its not like they could order and recieve and install new sensors that day. They wouldn't stop the races. Oh and I'm not bashing you. A 15.4 is believeable with those mods.

[Tony D]

oh, and be correct in your quoting of my contention:

I said my car was "basically stock"

There is NOTHING on the car that is a "Real" performance item. It is all basic maintenance replacment items.

15 second 1/4 mile times are not fast, they are nothing to be bragging about, and I never did.

Everybody else seems fixated that my times are "something special" and I still to this day con not figure out why.

The donor vehicle was a whole $125...

And I have since measured the camshaft. It is BONE STOCK, identical to the other N42 blocks I have... So much for the swearing guy in Texas' contention that I "had to have a cam in it"....

People who loose get aggravated for some reason, especially when they poured buttloads of money into making it shiny and putting all the "go fast" stuff on there.

Only to get spanked by a guy towing a trailer behind his 2/2 with a home made Class-3 Style Receiver Hitch on it...

[Tony D]

Why a 15.4 and not a 15.3, which was my best time.

Remember 15.4 was WITH ALL THE OTHER STUFF TAKEN OFF THE CAR AS A BASELINE.

The T/B, and filter only gave me .1 second maybe.

So it's your contention that adding a two-muffler 2.5" crush bent exhaust that is 1/4 collapsed from bottoming under the rear end is worth a full second.

Maybe I should sell it on E-Bay as a one-second modification.

[Tony D]

on yeah, and the AFM is STOCK from a 1976 280Z, a straight take-off from a vehicle you may have seen someplace else. Like Bonneville.

The AFM is NOT a turbo unit. It is a STOCK 76 AFM...

I just read the "60mm AFM" comment, and figure I should also clarify that while at it...

[spudea]

oh, and be correct in your quoting of my contention:

I said my car was "basically stock"

Everybody else seems fixated that my times are "something special" and I still to this day con not figure out why.

When bubbleguinea posted his times you posted your Z as being BONE STOCK. When obviously it isn't. So your non-stock z ran a 15.4. Thats perfectly believable. People fixate and call your times special when you claim it as a stock z. You can avoid this by simply calling it what it is, a non-stock z. What was your mph in the 1/4? If it is over 84mph you cannot claim it as stock.

[Tony D]

And again, 15.4 was BEFORE adding ANYTHING to it. That was withthe Nissan 50mm T/B and a stock pleated air filter.

So your contention is that I took 1.6 seconds off by using a 2.25 or 2.5" exhaust that follows stock routing...

Recalling all along that the stock system in a 75 2/2 is at least 2", and may be 2.25".

So increasing the exhaust system pipe diameter (maybe) by .250" is worth somewhere between 1 and 1.6 seconds.

I don't see it. With the damage on the last bend by the diffy, I doubt it flows any better than stock.