how to get more HP out of my 3.2??

[Blk95993]

Any tricks to get more HP out of my 3.2? Any advice to fuel my obsession would be helpful..

[Puka Puncha]

From what I've read, a euro pre-muffler plus a custom chip gets you a little horsepower...not much though.

[Blk95993]

Is there anything else out there. What are the potential of these engines? Or am I better off tryin to shead weight?

[strupgolf]

I put a performance chip in my 3.2 and the difference is very noticable. Do a search on "chip" and you can see them. Very easy, but a good "butt pusher" in all gears.

[ghnat]

Depends on just how much you want to spend. Like Puka Puncha wrote, pre-muffler, chip and add a good muffler to that. From there it is just a matter of how much you want to spend. I am going from 3.2L to 3.4L (bored cylinders), wilder cams, bored throttle body, SSIs, M&K 2in 2out muffler, maybe extruded honed intake, maybe twin plug, etc. I am waiting on funds right now, so I will be waiting a LONG time...

[Blk95993]

Who makes a good chip for these cars? I have a straight pipe on there now/fabspeed muffler "by-pass"...What is a pre-muffler?

[JeremyD]

From just a chip all the way up to 3.7 and motec - maybe forced induction is your bag - basically the 3.2 and 3.3 share a case - so with a big honking turbo - what did Juan get - close to 700 hp?

so from stock of 207 for an early 3.2 to upwards of 700 hp. How much do you want to spend?

[JeremyD]

Originally posted by Blk95993
Who makes a good chip for these cars? I have a straight pipe on there now/fabspeed muffler "by-pass"...What is a pre-muffler?

That's an easy one - Steve Wong

www.911chips.com

[mb911]

I vote turbo. I will post pics of some very shortly. Mine will be running this week and the 3.2 version is a a few weeks away

[Dionikes]

If you want to go the NA route. High compression pistions and add a second spark plug in each cylinder. Then use a MOTEC III system to replace your engine management system. Yeah all total this will put you back $$$$$$ but you should be able to pull an extra 100 bhp out of her.

[ghnat]

Hey Jeremy,
How is the car running? Still pulling strong I'll bet

[bigrubberjeep]

Option 1 More HP = More Speed = Chances of loosing control = More $$$$
Option 2 Less Weight = More Speed = More control in a Porsche = Less $$$$


I personaly would go with #2 before #1.

[MOMO3.2]

BLK95993

Or am I better off tryin to shead weight?

This route certainly has the potential to turn up the "fun factor" of your 3.2 considerably!

First, however, you have some big decisions to make. Is your Carrera 3.2 a pristine, low mile example that would best be preserved in stock form? Are you going to be selling it any time soon? Because, stripping the interior, a/c, fog lights, stereo system, losing your stock power seats, etc... will no doubt make your car worth less $ when/if it comes time to sell. If you are keeping it and it is in average condition with average miles (in other words starting to get worn), you may want to consider stripping it down.

That being said, I stripped 375 lbs from my previously stock 87 G50 Carrera and it has transformed the car. The acceleration seems slightly better. But, the overall dynamic performance of the car is much, much improved (turn in, braking, cornering). My car is more lively, raw, exciting, and rewarding to drive now. And, this is all with the stock 19 year old suspension!

I am currently in the middle of adding new Bilstein Sports and refreshing the front end. I already switched my 7" Fuchs to the front and added 9"s to the rear. I should be getting my car lowered, aligned, and cornner balanced by the end of the week. I can't wait!

If you can strip enough weight off your Carrera 3.2 to get it down to 2,300-2,400 lbs, you will have one heck of an exciting 911. You already have bigger sway bars, stiffer torsion bars, aluminum rear swing arms, realtively big brakes, and a hell of a great motor.

Good luck!

Mike

[Puka Puncha]

Hey Mike...not to hijack the thread but I'm interested in some of your weight saving ideas. Can you go more in detail on that?

Thanks in advance.

[Porschekid962]

The normal lightening consists of a couple popular and widespread changes. Strip the interior of all the stock carpet and floormats, door panels and handles. Then replace with an RS lightweight carpet kit and RS America door panels. That gets you on your way, then ditch your seats for some sparcos, recaro, cobra, whatever just some kinda racing seat and get a 4pt harness or 5 or 6pt at this time as well. Do you want/need ac? If not ditch the whole system, a sizable amount of weight there. Also your rear package tray, some remove and use carpet, our uphulsterer used a piece of balsa wood, covered it with thin foam and then black vinyl with a little heat and sound padding on the back for a slick look and less weight.

Fiberglass body parts, usually front and rear bumpers and then a ducktail or other rear decklid. Some people change their hood's to fg as well as swapping out rear quarter and rear windows for lighter weight plastic.

FWIW my dads car a 74 911 started life at whatever stock is, then got a 78 3.0. It had FG front and rear bumpers, ducktail, rs carpet kit and rsa door panels. AC was removed completely. There is a stereo in the car. Seats are sparco evo with schroth 4pt harness. There are steel sc flares on the car and 7inch 15's up front and 8 inch 15's in the back. Then went to a lighter weight battery in the smugglers box, ditched the huge window washer reservoir for a much smaller bottle, no rear seats or belts, custom package tray, hmmm added a front strut brace, had ssi's on the motor with a somewhat stock banana muffler. with no spare or tools in the car it came out just 2300 with a half tank of gas and all oil.

Not too bad, because the engine is being totally reworked and a newer trans is going in the weight might stay the same I am guessing. M&K muffler, super light, later style aluminum 915 trans a bit heavier. Bla bla bla.

Some people find weight in interesting places, a little stripping, a different exhaust and a chip will have you smiling I agree and isnt going crazy on price, yet! You can bust out the hand drill and drill holes in the engine lid and trunk hinges, not much savings there but its cool and the lightweight junkies dig it, if they use those heavy overdone hinges lol. The big and easy things to attack are bumpers, decklid if you have a tail, exhaust, interior, AC, battery and in some cases the drivers weight. There is plenty of info here on what weighs what and different routes to take.

Best of luck

[Wavey]

From Steve Weiner, Rennsport Systems:

1) Install a GOOD performance chip; they are not all the same.

2) Regrind your cams to the 964 profile. Your cams can be reprofiled by a few companies; We use Webcam. If you retain the Motronic system, stick with 964 cams.

3) Extrude-hone your intake manifolds. Leave your heads alone as they have plenty of airflow up to 340 HP. (930 heads are nowhere near as good as your Carrera ones)

4) SSI Heat exchangers & Monty Sport muffler. This may affect smog compliance if thats an issue in your area.

5) 3.4 litre (98mm) pistons & cylinders. You'll need twin-ignition for compression ratios over 9.7:1 using pump gasolines.

As you can see, there are lots of options. A properly done twin-plug 3.4 with all these mods can make 270 HP with lots of torque.

From me:

"Good chip" = Steve Wong, 911chips.com.

MK muffler is as good as a Monty at half the price.

[JeremyD]

Originally posted by ghnat
Hey Jeremy,
How is the car running? Still pulling strong I'll bet

running like a scalded cat!

[MOMO3.2]

Aloha Puka Puncha:

What Porschekid962 said is basically it. I stripped out the entire interior. The sound pad on the back shelf alone weighed 35lbs! Other significant reductions were the windshield washer tank (full and heavy as hell), and the power driver's seat. My PO had a full blown sound system installed. The door panels were over 20lbs each. It had an amp etc... I have no spare or jack.

Anyway, I added mid-year factory Sport Seats instead of racing buckets. They are pretty light and I think they are amazing. I also think they are getting fairly scarse. You better grab them while you can. Like Porschekid962 wrote, I will be adding RSA door panels and felt carpeting with no sound insulation.

I am going to keep my stock bumpers due to insurance claim concerns. The only F/G I added was a ducktail. That is really just for cosmetic reasons and more air is directed to the engine bay for better cooling. There is not a lot of weight savings from the steel engine lid.

If you have any more questions, pm me.

Sincerely,

Mike

[DG624]

I have saved around 200lbs without destroying the look of feel on my car...that really helps. I have also read that the intake (intake manifold and throttle body) can be improved with a chip for around 250 HP. These changes are not very expensive and really help the performance.

Has anyone tried the Extrude Hone process for the intake or had the TB enlarged? I would like to hear and objective account.

[Tippy]

With lower compression and 15lbs of boost from a single turbo has gave my car ~515hp.

Turbos can produce probably north of 700hp on these engines.