SSI's on 87 and want my heat + ?'s

[ken_xman]

As I am transforming the 87. I am thinking about SSI's and what I need to do to keep my heat.

What are the +'s , and -'s?

Anything to watch out for?

[Rot 911]

Plenty of info on this subject. Get the SSI's, lose the engine compartment blower, keep the footwell blowers.

[89911]

There are 2 ways to go, backdate or fab out a connection from your existing blower to you ssi's. Some just hook up the drivers side. I found backdating had more advantages. Check out the archives also.

[BReyes]

Heat works fine with SSI. Good Luck.

Regards,

[ken_xman]

What do I need to accomplish a 2 inlet system for the muffler?
Is this the backdating referred to?
Is a normal SSI setup for my year 87 single inlet still?

[mb911]

No ssi back date is 2 equal length stainless heat excahngers/headers and a dual inlet muffler with either single out or dual out even R if you like You will also need 2 back date oil line 150 bucks or so and you should be good to go

[ken_xman]

Ben
See what you started.
Ken

[mb911]

I knew it would be a hot issue Let me know call me when you have an idea of which way

[wholberg]

Just be advised that SSI's work better on a 3.0 than a 3.2.

A 3.2 will push out about 7% more air than a 3.0L at any rpm, based upon displacement difference.

The header pipes on a 3.0 are 35mm while a 3.2 has 38mm, which have an 18% cross-sectional area increase over 35mm.

SSI's have tubing ID of 1 3/8", and would need a minimum of 1.5inch ID to acheive the same flow velocity.

You can achieve better performance with other manifolds. See the thread below.

Am I choking my 3.2?

What I want to know is why SSI does not make early style header/heat exchangers with 1 5/16" diameter header pipes? They would fit everything up to and including 3.6L, and I would put them on my 3.2 in a heartbeat!!

[Jeff Alton]

They do work on 3.2's. Do your research and make your choice. There is more to making exhuast flow then pipe diameter. Wholberg, don't you mean 1 5/8 not 1 5/16? Yes, they will make a bigger difference on a 3.0, but hey still make a difference on a 3.2....

Jeff

[mb911]

here we go! There is nothing IMO for better qauilty and fittment then SSIS. even if they flow

[wholberg]

Originally posted by catca
Wholberg, don't you mean 1 5/8 not 1 5/16?

Yes, they will make a bigger difference on a 3.0, but hey still make a difference on a 3.2....

Jeff

Thanks for the correction...Yes, I meant 1 5/8.

I know that SSI's will work on 3.2's, I justed wanted ken_xman to know that he would get less of a performance increase on a 3.2 than a 3.0, from heat exchangers alone. Other aftermarket headers out there, made specifically for 3.2 engines, will flow better, and possibly yield greater HP.

I also concede that exchangers are only part of the performance equation, and SSI's are sexy as hel.

[ken_xman]

Now I want the SSI's and dual inlet/ dual outlet muffler.
What are the SSI's I need to order?
are they older year version, rather than the correct year listed on pelican for 1987?

What is the step by step guide to making all of the necessary changes to the exhaust, oil lines, and heat .... to have everything working.

[Rot 911]

Originally posted by ken_xman
Now I want the SSI's and dual inlet/ dual outlet muffler.
What are the SSI's I need to order?
are they older year version, rather than the correct year listed on pelican for 1987?

What is the step by step guide to making all of the necessary changes to the exhaust, oil lines, and heat .... to have everything working.

Go to the Pelican Parts side of the house and look under exhaust for the 3.2. Order the SSI exhaust for the 3.2 It also tells you what oil lines you need to order. You will need to order two of the heat exchanger to fan housing hoses and clamps if you are doing a complete backdate. You will also need the early right and left engine tin. No need to buy new, just place a WTB on the classifieds for used parts. Makes sure you order a 2 in, 2 out muffler for a Carrera as the early muffler has the wrong exhaust tip.

Here is what the backdate looks like, minus the muffler:

[mb911]

Oil Line Update: It is important to note that all cars with cross-over exhaust systems (all 1978-89 911SC and Carrera) require the replacement of two oil lines with two older-style ones when installing the SSI heat exchangers (or any 1974 and earlier exhaust). These lines are part numbers C-107-728-00 (NO front-mounted cooler) OR C-107-729-10 (WITH front-mounted cooler) AND C-107-739-10 and are available for purchase below.

plusPEL-SSI-RT3.2 , PEL-SSI-LT3.2 here are the exchangers looks like 1000 dollar job give or take and the muffler which ever you decide

[ken_xman]

Can I change the engine tin while the engine is still in the car?

[Bobboloo]

I have 74' style early exhaust and stock 2 in 1 out muffler on my 87' 3.2 and it's great street combo. Love the sound and is "strong like bull". Also backdated heater attachments.

Backdating is easy. You just buy the two pieces that go on either side of the fan shroud and hook up the hoses that go to the SSIs.

In reading up on dyno runs, and advice from people here on the board who've tried different combos, SSIs are great for the street on a 3.2. You may give up a little top end HP but are rewarded with strong low and midrange torque. SSIs are a proven quantity on dynos.

[mb911]

you can also get away from the backdate parts and make a t for your heat. Infact you tell me what you need and I will make it for you out of stainless

[ken_xman]

The heater hose looks tight with my A/C compressor. Is there room for both?

[Bobboloo]

I have A/C and the hose goes under the bracket for the compressor.