Humboldtgrin

It's easy because it's an 89T. 88turbo S have the same style two piece crossover. There the best stock style crossover, I like the one piece header collector. My 86 crossover broke a header flange off and put a hairline split down the wastegate runner from warping. A two piece crossover relieves the stress on the wastegate over the 86 crossover. The 87 and 88 crossover are a two piece but still have a two piece header connection and the wastegate tie in is backwards in regards to airflow connection. The 88TS/89T crossover corrected these issues. Looks like Lart has just what you should get. Just don't forget new gaskets. I agree and disagree with LR two piece crossover. I love the idea. But because of the meterial used it will crack in the future. Not maybe, it will. I have an 87 crossover with there early style band clamp setup. It was cracked 1/4 around both welds. It because SS doesn't weld well to incolnel. And more connections means more areas to possibly leak from. I would go with SFR two (three w/wastgate tie in) piece crossover if replacing the stock unit to upgrade to that design. Althou he should use a one piece header flange at least and 1/2" think flanges and possibly a 321ss upgrade option but then that gets real pricey.
http://pages.ebay.com/link/?nav=item...obalID=EBAY-US

lart951

10% off for rennlist members

lart951

this is the dreaded 1pc crossover is actually so rare that is more expensive than the 89 TS 2pc, Iam not the seller

http://www.ebay.com/itm/Porsche-944-...tV-iRZ&vxp=mtr

FRporscheman

Is your car 1986 or 1987+?

Rokket

I have had the Lindsey 3- Piece (Actually Modified 2-Piece) on my car for almost 5-years and have at least 200 Races and could not even calculate how many DE's. The ONLY problem that I had with the Lindsey set was the bolts in the flange, had to drill them out & install 12.9 w/ Stover nuts on the back sides.

I bought my cross over pipe from LART and had it shipped directly to Lindsey for the modification. I own the Engine Lab (www.EngineLabofTampa.com) and have installed a bunch of these without any reported issues.

Removing the intake is a breeze, but the 4- bolt/nut configuration on the Turbo is absolutely dreadful! I took the time and Stage 8'd all of the bolts on the turbo down pipe so that (Hopefully) I never had to remove them again. Another thing that I did was drill out all of the 6-mm bolts and upgrade them to 8mm with Stover nuts.

I did break that little wastegate elbow at the 48-Hours this year, but was able to get it welded locally w/ 304SS.

944hal

My car is of many years :-). The crossover is a single piece from the original '87 motor. To be exact, the body is an '89 S2, with a 951 Turbo motor. Not sure the actual year of the motor, only that's it's not a Turbo S. The torque tube is out of an '89 Turbo S as is the transaxle. Most of the suspension components are from the original "87 T supplemented with different struts and bushings.

Rokket

Since you upgraded your trans to the TS which is an AOR, that is really other than the k26/8 major difference between the 2- models. My car is set up as a Turbo Cup since 1990, and uses the 86 boxes with PMNA factory chips

mytrplseven

Are you saying that I should replace my '86 crossover with one from an '88 or '89? If so, is there anything else that needs to be modded while it's being re-installed?

944hal

Other than the turbo S trans, I running a stock 26/6 with a custom chip. Motor is mostly stock. Crank and rods are balanced and I just added the Michael Mount rod bearing modification. Also have a crank scraper. Car is light, 2,550 lbs without me. Running in PCA SP3. Should not have any problem making weight. Heck, I might be the only turbo left in SP3.

FRporscheman

Then that's why you didn't need to remove the crossover pipe to do your clutch. Only the '86 1-piece crossover pipe interferes with the bellhousing. The 87+ pipes are 2-piece.


OP: I'd recommend putting in an 87+ pipe if you can get one. I just recently learned that the TS version has a stronger header collector flange (1 flange instead of 2), so that would be even better.

944hal

FRPorscheman,
My crossover is a single piece Bolts to the headers, waste gate and turbo.

Tom M'Guinn

I've replaced the clutch on my 86 several times without removing the cross-over. My '86 is actually a fairly early one, yet it still came with the updated cross-over pipe, so those early versions must be fairly rare.

FRporscheman

Just so we're clear

Here is an early one-piece:
http://www.ebay.com/itm/Porsche-944-...tV-iRZ&vxp=mtr

Here is a late two-piece:
http://www.ebay.com/itm/Porsche-944-...item3d115680b5

No affiliation.

I didn't know the change was made mid-86, interesting.

mytrplseven

This is where I'm confused:

Lindsey 2 pc conversion doesn't look anything like what I would consider a 2 pc crossover pipe that makes changing the clutch without pulling the crossover a certainty.

Van

The "two piece" only has to do with the little pipe that goes to the wastegate. The one-piece pipe has a longer little pipe that connects directly to the wastegate, as opposed to the coupling and slip flange...