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Porsche Crest Upgrade to 16 valve question????

HELP!!! I want to remove the 8valve engine out of my 88na in order to upgrade to a 16valve...Anyone ever do this? How difficult? I imagine I will need new headers, intake, some suspension work (almost completed) and DME plus wiring...Any feedback is appreciated...

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88 944na = Azure Blue
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Old 08-02-2004, 10:47 AM
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probably easier and cheaper to buy an S
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Old 08-02-2004, 11:07 AM
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Why? A 16v isn't that much faster than an 8v model. If you really want performance get a turbo, or go the same route some others have and turbo what you've got. There is another way to better performance, loose weight. A lighter car for a given hp is faster, all other factors held equal. My son's 8v Scirocco can do 0-60 in 6.5sec, but it weighs only 1750lbs. A way to the turbo if you don't want to buy a 951 would be to purchase a totalled 951 with an intact drivetrain and swap it into your car. There are ways to get faster, some much more effective than others.
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Old 08-02-2004, 11:12 AM
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i'm curious. has anybody successfully converted a 944na to a 951 ? are they on the forums?
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Old 08-02-2004, 11:32 AM
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Yup, it has been done. There's a guy over on Rennlist that did it. I've seen the car and he did a great job, so it can be done with enough perseverance.
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86 951- again on the road, but needing some more TLC
82 931- again among the rolling
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Old 08-02-2004, 11:49 AM
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hi jm951. interesting post. i guess it can be done, as there is also a guy on here, who has fitted the s2 engine into an early car. i would be interested to find out later, how you got on, and what, if any, your troubles were.
good luck.
bob.
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Old 08-02-2004, 12:07 PM
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you gonna need the head machined to match water ports and you gonna need different pistons, and possibly rods
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Old 08-02-2004, 12:08 PM
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Andy's flat black beast is the only 944na that I know of to have a complete 951 engine in it. It is an amazing peice of work and one him the most modified category at 944 fest this year. Search over on rennlist you'll find it.
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Old 08-02-2004, 12:12 PM
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so all he did was swap out the 944na engine with a 951 engine?

i was referring to turbocharging a 944na engine, not doing a simple engine swap.
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Old 08-02-2004, 12:23 PM
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Dropping a 951 engine in isn't a "simple swap". Just take a look at both side by side and you'll see what I mean. Andy pulled off a great car, I saw it at 944Fest.
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Old 08-02-2004, 12:27 PM
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Any work like that, if you are paying a shop to do it, is not financially viable. 951s that need work are $5k and up, to convert, properly, a 944NA would be as much if not more.

I would not call instaling a 16V S engine into an 8V NA an upgrade.
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Old 08-02-2004, 12:39 PM
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Somebody mention my name? I do indeed have an S2 in an '83. Also, massively upgraded suspension, to the point where it's a PITA to drive on the street. Speedo doesn't work, there are electrical issues, but yeah, it's really fast, especially since the early models were lighter than the later models. The swap was done professionally by Intersport in Tyson's Corner, Virginia, in the early 90's. I don't know of any particular issues they had, but I think it's a waste of time. If you're really interested PM or email me and I'll give you the information so you can call up Intersport and see what they remember about doing it. Regardless, you end up with a car that's not altogether right in the head, and it's a lot of money for not much performance. Sell your NA and buy a turbo.
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Old 08-02-2004, 12:58 PM
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Gents...Thanks for pointing me in the right direction..I am up in the air as to what I want to do...I did see a nice 93 968 coupe in my area for sale....although I prefer the look of the 944...I hear there are a ton of modfied 8valves out there...perhaps that the way to go..
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88 944na = Azure Blue
New Rebuilt Race Engine (@190 HP)
Lindsey Racing Fuel System
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Millie Cup Wheels and Kuma's
Old 08-02-2004, 01:43 PM
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You could just build up a supercharged engine and transplant it in when the time is right. . .

The 16v engines are really cool, but if you want speed, you need power, and if you need power, you have to get some sort of forced induction. Go take a ride in a supercharged 944 or a 931 or a 951. The difference is like night and day. The n/a cars are fun, the forced induction options are just "holy $hit" fast.
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Old 08-02-2004, 04:26 PM
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i have had my car for about 3.5 years now, and although i still enjoy it, i'm thinking about a change. i will still hold onto the 944na, its a keeper!, but i was leaning towards a turbo, or an s2, but checking out prices, i see that you can get a 928 for the same money. yes, i know, big maintenance issues etc, but after driving my friends 928, i think i'm hooked. i did think about modifying the 944, but i have to agree with the majority, and certainly the experts here, that its often better left standard, for reliability reasons, notwithstanding the excellent chip from FRW.
i just hope that when i get a 928, i continue to get the best advice, like i have done on this forum.
bob.
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1984 944 na.
FR. WILK power prom/dual chip.
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Old 08-03-2004, 07:39 AM
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Be happy I'm not a mod, I would ban you very soon. STOP ASKING STUPID QUESTIONS AND LEARN TO USE THE SEARCH BUTTON!
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Old 08-03-2004, 06:39 PM
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Pardon???
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88 944na = Azure Blue
New Rebuilt Race Engine (@190 HP)
Lindsey Racing Fuel System
MSD Ingnition System
Zimmerman XDrilled Frt/Rear
BB Headers & Cat Back Exhaust
Mass Flow Air w/ Ingen Technology
Nology Pro Fire Wires & Coil
Millie Cup Wheels and Kuma's
Old 08-03-2004, 06:44 PM
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Aww fer cryin' out loud; if everyone just "used the search feature" then there wouldn't be a need for a message board, would there be? If you don't want to answer the guy's question, DON'T FREAKIN' ANSWER IT!!!

The purpose of this forum is to disseminate knowledge and foster goodwill in the community of Porsche owners and some people just happen to like getting that from other human beings, not from a database. They CERTAINLY don't need some dip***** telling them they're "stupid" for using the forum the way it was intended to be used!
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Old 08-03-2004, 06:44 PM
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Hey Porsche-O-Phile...I appreciate your post, I am new to this forum but not new to Porsche or asking general questions in an "Open" forum....I hate when kids have computers...
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88 944na = Azure Blue
New Rebuilt Race Engine (@190 HP)
Lindsey Racing Fuel System
MSD Ingnition System
Zimmerman XDrilled Frt/Rear
BB Headers & Cat Back Exhaust
Mass Flow Air w/ Ingen Technology
Nology Pro Fire Wires & Coil
Millie Cup Wheels and Kuma's
Old 08-03-2004, 06:46 PM
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It's ok to ask questions, and I'm not saying don't, but part of the reason some folks get their panties in a wad is that there always seems to be kids popping in and asking really inane questions, like- can I naws my 944, can I turbo my na, what size subs for my ride.. and so on. The search feature is ok but in my experience, the main problem with it is the lack of proper spelling in many posts can lead to missed information. So, ask, but also look into the search button. That way, you should get the info you're looking for. Don't let the anti noobs bother you and stay on the board, learn about your car and become a contributor and help others with problems. That's what this is all about.
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86 951- again on the road, but needing some more TLC
82 931- again among the rolling
"If yer paint aint chipped, you aint passin nobody."
Old 08-04-2004, 05:54 AM
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