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928 - looking for early and ultimate build

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Old 01-10-2020 | 10:43 PM
  #46  
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Originally Posted by 77tony
It most certainly is^^. Was black/blue pascha w/cork ever been available ?



1) adds weight up high 2) adds complexity and maintenance 3) roof opening is kinda small 4) you'll lose approx. 1.5" of headroom (not good for taller peeps) 5) takes away from the smooth, flowing lines as do side rub strips, US rear bumpettes, spoilers, etc.,...particularly on OB's YMMV. T
I don’t know man, I like that sun/fresh air coming in and the connection to the outside when I’m driving. I particularly like it in this car because it’s essentially right over my forehead. In Ohio, I only get so many weeks a year to really enjoy my fun cars and when the sun is shining bright, I want to absorb every malignant UV ray. I had a beautiful green jag XK for a while- hardtop coupe- no sunroof. I felt like I was wasting the good weather being locked in under that solid roof
Old 01-10-2020 | 11:15 PM
  #47  
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Originally Posted by GregBBRD

Ohhhh mama
Old 01-10-2020 | 11:34 PM
  #48  
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Originally Posted by Ladybug83
Ohhhh mama
Right?

These are going into a 1981 car that is the light blue color (Hellblau Metallic) offered in that year.

I'm thinking these would look fantastic in a Minerva car.
Old 01-10-2020 | 11:41 PM
  #49  
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Originally Posted by abrescia
Why is the sunroof so reviled? Is it because of weight? I love driving with my sunroof open.
Headroom is the #1 reason for me, clean lines second.
Old 01-10-2020 | 11:47 PM
  #50  
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Originally Posted by abrescia
I don’t know man, I like that sun/fresh air coming in and the connection to the outside when I’m driving. I particularly like it in this car because it’s essentially right over my forehead. In Ohio, I only get so many weeks a year to really enjoy my fun cars and when the sun is shining bright, I want to absorb every malignant UV ray. I had a beautiful green jag XK for a while- hardtop coupe- no sunroof. I felt like I was wasting the good weather being locked in under that solid roof
Yeah I get it with weather your way. I'd still opt for the 997 Cab (in your avatar) on those perfect weather days.
Originally Posted by GregBBRD
Right? These are going into a 1981 car that is the light blue color (Hellblau Metallic) offered in that year.
I'm thinking these would look fantastic in a Minerva car.
Absolutely^^I've only seen black/blue pascha w/black exterior cars and only one w/Horizon Blue. There must have been some ordered with blk/blue pascha w/Minerva Blue but I've never seen one. Heck, previously owned GTS I had painted in Minerva Blue, worked in a few Paul Champagne lasered pascha bits, and deleted the sunroof, rubbies, etc. T





Last edited by 77tony; 01-11-2020 at 12:29 AM.
Old 01-11-2020 | 12:31 AM
  #51  
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The 2 valve engines also make a way different noise compared to the 32 valve ones. They just sound more muscle car like which is something I like personally.

Don't let people tell you the autos are no fun, sure they are slower to 60 but you can actually get parts for them

Doesn't hurt that until 85 the US cars didn't have a rev limiter so you could go 90 mph in first with a 3 speed.

The 3 speeds also have better ratios than the 4 speed autos and never leave the powerband if you rev the engine out. They get a lovely surge of torque ~3000 rpms.

I'm on my journey building what I view as the perfect early 928 hotrod and started off with a 81 auto that didn't have rubstrips originally and has no sunroof.

It also has the simplest electronics and vacuum systems with the least amount to go wrong. Upgrade the brakes if you're serious about driving the car hard.

They are terrible for a car of this weight and speed and struggle to stop the car, they were fine on a NA 944 though. I'm personally going with S4 front suspension and 993 C2 calipers all around.

I would start with a good driver quality 928 as any low mile garage queen will lose its value with any serious miles driven and modifications that deviate it from factory correct.

Best of luck on building your dream 928!
Old 01-11-2020 | 02:56 AM
  #52  
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Originally Posted by The Forgotten On
The 2 valve engines also make a way different noise compared to the 32 valve ones. They just sound more muscle car like which is something I like personally.

Don't let people tell you the autos are no fun, sure they are slower to 60 but you can actually get parts for them

Doesn't hurt that until 85 the US cars didn't have a rev limiter so you could go 90 mph in first with a 3 speed.

The 3 speeds also have better ratios than the 4 speed autos and never leave the powerband if you rev the engine out. They get a lovely surge of torque ~3000 rpms.

I'm on my journey building what I view as the perfect early 928 hotrod and started off with a 81 auto that didn't have rubstrips originally and has no sunroof.

It also has the simplest electronics and vacuum systems with the least amount to go wrong. Upgrade the brakes if you're serious about driving the car hard.

They are terrible for a car of this weight and speed and struggle to stop the car, they were fine on a NA 944 though. I'm personally going with S4 front suspension and 993 C2 calipers all around.

I would start with a good driver quality 928 as any low mile garage queen will lose its value with any serious miles driven and modifications that deviate it from factory correct.

Best of luck on building your dream 928!
^^ #wisdom

except "autos are no fun, sure they are slower to 60"
#no way, lets race

#My current auto 928S shifts hella-faster than I could manually with my previous 928S. And there's a "hold on" button under the pedal on the auto 4-spd, just gotta have the nuts to press it for more than 4 seconds.


Originally Posted by 77tony
Yeah I get it with weather your way. I'd still opt for the 997 Cab (in your avatar) on those perfect weather days.

Absolutely^^I've only seen black/blue pascha w/black exterior cars and only one w/Horizon Blue. There must have been some ordered with blk/blue pascha w/Minerva Blue but I've never seen one. Heck, previously owned GTS I had painted in Minerva Blue, worked in a few Paul Champagne lasered pascha bits, and deleted the sunroof, rubbies, etc. T



#Pass the lotion

#all-time favorite 928 builds

Originally Posted by GregBBRD
Right?

These are going into a 1981 car that is the light blue color (Hellblau Metallic) offered in that year.
#I may know the one
#hell f-in yeah
#owner is cool AF too
#blue pasha madness
#Im not the owner




Old 01-11-2020 | 02:06 PM
  #53  
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What is the emissions situation/view/constraint for this car?

What sort of power to weight ratio are you looking for?
Old 01-11-2020 | 02:09 PM
  #54  
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Originally Posted by GregBBRD
Tough to explain weight and the effects. Even a few hundred pounds is significant.
For instance, the difference between driving an early 911S and even a '78 911SC is incredible.
In my opinion, the biggest weight issue with 928 is how much of the weight is in the front of the car and how far in front it is. I think that anything one can do to reduce the weight near the front bumper is very beneficial, but reducing weight near the rear axle doesn't do much. Purely on opinion, not like I've tested this much.
Old 01-11-2020 | 03:03 PM
  #55  
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Originally Posted by ptuomov
What is the emissions situation/view/constraint for this car?
My shop is in California, so I automatically assume my engines/cars need to pass California standards or US standards at a minimum.

No stupid "open crankcase" supercharged, "tailpipe emission horror stories", here!

If I was to build this car, I would convert it to '87 to '95 fuel injection, with stock Bosch pieces (anyone that knows 928's can then work on it), knock sensors, and easy tuning (courtesy of John Speake). I'd use stock '87 to '95 air injection and catalytic converter.

Making more "power" is one thing, making "cleaner power" is an art. My work has evolved from just being a mechanic....I'm more of a 928 artist, these days.

My work has always been directed towards increased efficiency ("free" horsepower, laying on the table)....and as the efficiency of an engine goes up, what "bad stuff" comes out the exhaust always goes down. (I bought my first flow bench when I was 18.)

My 928 goals are simple....increase efficiency until my engines will almost have the capability of passing California tailpipe emission requirements, without a catalytic converter. (Many of my "hot rod" engines would actually do this, if we tried to do this.)

The ability to pass a California tailpipe emissions test is not an added option. It comes with all my cars.


.
Old 01-11-2020 | 03:14 PM
  #56  
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Originally Posted by GregBBRD
My shop is in California, so I automatically assume my engines/cars need to pass California standards or US standards at a minimum.

No stupid "open crankcase" supercharged, "tailpipe emission horror stories", here!

If I was to build this car, I would convert it to '87 to '95 fuel injection, with stock Bosch pieces (anyone that knows 928's can then work on it), knock sensors, and easy tuning (courtesy of John Speake). I'd use stock '87 to '95 air injection and catalytic converter.

Making more "power" is one thing, making "cleaner power" is an art. My work has evolved from just being a mechanic....I'm more of a 928 artist, these days.

My work has always been directed towards increased efficiency ("free" horsepower, laying on the table)....and as the efficiency of an engine goes up, what "bad stuff" comes out the exhaust always goes down. (I bought my first flow bench when I was 18.)

My 928 goals are simple....increase efficiency until my engines will almost have the capability of passing California tailpipe emission requirements, without a catalytic converter. (Many of my "hot rod" engines would actually do this, if we tried to do this.)

The ability to pass a California tailpipe emissions test is not an added option. It comes with all my cars..
If considering a full engine swap, I'd consider an early Cayenne Turbo engine with all its emissions gear. This would be a full modernization effort.

Is it legal in California to install '87 fuel injection and emissions gear on an earlier model? If so, then that would make sense, because that would allow keeping the "period correct" look of the 2-valve engine.

Individually Sharktuned cars can have very good emissions especially if the intake port is made smaller or cylinder displacement made larger, but if you give the engine compression that it really wants, how do the nox numbers look?


Old 01-11-2020 | 04:23 PM
  #57  
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My vote is if you're going to evoke the early body style and look, there'd better be a 16 valve motor and that intake under the hood. So the fun is figuring out what to do under those cam towers to get the most reliable power out of 91 octane gas and LH 2.3 that you can, and still meet CA emissions requirements. My 6.5 stroker is 6 for 6 on smog testing, since 2010, always by a country mile.
Old 01-11-2020 | 04:47 PM
  #58  
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Originally Posted by ptuomov
In my opinion, the biggest weight issue with 928 is how much of the weight is in the front of the car and how far in front it is. I think that anything one can do to reduce the weight near the front bumper is very beneficial, but reducing weight near the rear axle doesn't do much. Purely on opinion, not like I've tested this much.
I always felt the 928 engine was pretty far back making it almost a front-mid engine arrangement. Not sure you could practically remove that much weight in front of the front axle. I guess one could reposition the radiator, remove the AC compressor, but what else could be done?


Old 01-11-2020 | 04:49 PM
  #59  
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Originally Posted by GT6ixer
I always felt the 928 engine was pretty far back making it almost a front-mid engine arrangement. Not sure you could practically remove that much weight in front of the front axle. I guess one could reposition the radiator, remove the AC compressor, but what else could be done?


Hacker could comment on Todd Tremel's efforts.
Old 01-11-2020 | 05:24 PM
  #60  
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If you had a different intake that required more height but you want it under the hood, Anderson came up with an alternate motor mount setup (using Toyota truck bits) that drops the motor an inch. Doesn't do much for F/R balance, but CG, some.



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