Fun on the road

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13 years 4 months ago #14203 by emmanuelli
Replied by emmanuelli on topic Fun on the road
oh man. thats scary. during this drive i got some water lift on the driver side on some of the straights it scared the isht out of me! there was quite a bit of traffic and people were zooming pass me. im wondering if there's something wrong with me! lol but i made fine! on a sunny day, that is a nice drive. on the way back i was thinking of taking RT 9 south since its really picturesque along the hudson, next time!

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13 years 4 months ago #14223 by wallyp
Replied by wallyp on topic Fun on the road
High-performance tires are usually "summer-only" tires, with very poor traction under 45 deg F. The first time that you discover this for yourself can be interesting.

Wally Plumley
928 Specialists
www.928gt.com

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13 years 4 months ago #14226 by emmanuelli
Replied by emmanuelli on topic Fun on the road

wallyp;14589 wrote: High-performance tires are usually "summer-only" tires, with very poor traction under 45 deg F. The first time that you discover this for yourself can be interesting.


interesting is a great way to put it! im considering changing my tires but im on the fence about changing my rims i dont have storage space so new rims/new tires means selling or giving up my current rims. hmm.

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13 years 3 months ago #14443 by emmanuelli
Replied by emmanuelli on topic Fun on the road
ok, had a nice run to PA and back saturday. car performed fairly well. i was concerned about gas mileage before the intake was done. the full run, on this first long drive since out of the mechanics was 225mi i rode that with a full tank from fairly empty, the pump read 16gals. i parked the car with with 1/4 to 1/3 of a tank. if i do the numbers at the highest mileage per gal specs 25mi/gal i get that i should have used about 9gals. i suppose im within spec. considering some of the city miles were done i think i got a pretty good average on gas mileage.

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13 years 3 months ago #14460 by mm928
Replied by mm928 on topic Fun on the road
My window sticker (yep I got it,,) has 17 combined on it. I have a 23 gal tank. When I first got it I avg 12-14 mpg before we did anything to it. Last year when I went to SITM I got slightly over 20 in the mountains racing around and highway driving.... I am very pleased with that. If I avg the window sticker I am ok with it, but looks like I might be a little bit better, considering it is an auto......most of my driving is 60+, not too much city here. That helps a lot.

1983 928S - 16v 4.7L L-Jetronic
Slate Blue Metallic w/ Blue Leather
85/86 exhaust manifolds
Y-Pipe
SS Hi-perf Cat
S4 springs
Bilstein shocks
Air pump delete
VIN: WP0JB0926DS861180
- - Isn't Life great? - -

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13 years 3 months ago #14471 by wallyp
Replied by wallyp on topic Fun on the road
You can improve your mileage on the LH-equipped cars by the way you drive.

With engine speed above about 1438 RPM, and fully closed throttle (idle switch made), the LH ECU totally cuts off the fuel flow. It is really, really difficult to make yourself do it, but if you can totally lift off the throttle at every opportunity - and that means very small downhill runs, well before every slowdown or stop, etc., etc., you can increase the mileage on a trip by 10 - 15%. It seems really counterintuitive, but on and off the throttle gives much better mileage than careful, steady throttle.

Many years ago, that was one of the secrets of the Mobile Economy Runs - "squirt and coast" was the key to high mileage, and it is even truer today, with fuel injection.

Wally Plumley
928 Specialists
www.928gt.com

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