HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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Introduction/CA-SMOG '86 turbo

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Introduction/CA-SMOG '86 turbo Empty Introduction/CA-SMOG '86 turbo

Post  JackPack on Tue Mar 19, 2019 4:22 pm

I have been a lurker for a while and I am finally ready to convert my '86 944 turbo. I just wanted to introduce myself and see who all is active in the forums these days. I have been doing a lot of research and putting together an intricate spreadsheet to organize my build. Although I may get smited down California's cruel engine change laws, I want to go into this build assuming this will be a CA-legal engine change. I have been studying pormgb's build carefully and observing all of the headaches associated with the emissions requirements. Although it may change later down the road, I want to go into this build assuming I will be getting this car BAR approved. With that in mind, I wanted to pose a question to the community: Which donor car/engine setup would be least-painful for integrating into my car to make it CA-legal. Since I haven't started yet and am not particularly picky, I figured I would go with the least-painful platform to start. I was thinking about a 2005 corvette. Is it possible to build an engine up from the small block? Or with the engine change laws, is it easier to buy a complete turn-key so all the parts match the donor car?

Who knows, in the end it may be easier to move to a new state. But for the time being, I would like to try making this a CA-legal swap.

JackPack

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Post  Rich L. on Tue Mar 19, 2019 7:40 pm

I thought a '99 Camaro was the easiest. Getting a pull-out nets you all the accessories, bracketry and the computer. Looks like the hardest part of CA smog is using the factory manifolds and cats given the 944 steering shaft location.
Rich L.
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Post  docwyte on Wed Mar 20, 2019 7:52 am

F body is a much better fit vw Corvette, as Rich says.

docwyte

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Post  sparkydog on Wed Mar 20, 2019 9:23 am

I too am trying to ultimately survive the BAR/CARB regs. I am not ready yet but I have chatted with a local shop which has done several LS motor swaps into later model 4WD vehicles and been approved by a BAR referee. Don't forget the more subtle details like:

Donor vehicle must be a VIN that is CA smog legal (simple version - get stuff off a car that was originally sold in California.) I took lots of photos of the donor vehicle's VIN tags etc.

ECU VIN needs to match donor car & motor.

"Smog equipment" that must be swapped includes the EVAP hardware - I even took it to an extreme and am using the donor car's gas cap because of the venting compatibility with the EVAP relief valves.

My guy says you have to try really, really hard to make the air intake hardware as highly identical to the donor vehicle as possible - obvious stuff like aftermarket air filters/CAI gear is a red flag that invites deeper scrutiny by the referee.

Ditto exhaust hardware back to the CAT. If you have to mod the OEM system, it better be so clean looking as to not appear any different.

My $.02. Good luck!
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Post  JackPack on Wed Mar 20, 2019 11:25 am

Rich L. wrote:I thought a '99 Camaro was the easiest. Getting a pull-out nets you all the accessories, bracketry and the computer. Looks like the hardest part of CA smog is using the factory manifolds and cats given the 944 steering shaft location.

Thanks for the feedback guys. Rich, do you have any threads that discuss why a '99 Camaro works better than say a '00-'02?

Does TPC have any experience with CA-SMOG?

JackPack

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Post  sharkey on Wed Mar 20, 2019 11:43 am

what about using CARB certified aftermarket parts for said donor vehicle? just thinking that there may be some carb approved headers for a camaro that may work, or you may be able to modify very cleanly to fit and might get you by.

sharkey

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Post  JackPack on Wed Mar 20, 2019 12:07 pm

sharkey wrote:what about using CARB certified aftermarket parts for said donor vehicle? just thinking that there may be some carb approved headers for a camaro that may work, or you may be able to modify very cleanly to fit and might get you by.

pormgb looked into aftermarket headers for his '02 camaro build:
[You must be registered and logged in to see this link.]
He still had a difficult time with the steering shaft.

Would love for him to chime in on this thread. Does anyone know the post limit required to PM a member?

JackPack

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Post  pormgb on Sat Mar 23, 2019 12:59 pm

JackPack wrote:
sharkey wrote:what about using CARB certified aftermarket parts for said donor vehicle? just thinking that there may be some carb approved headers for a camaro that may work, or you may be able to modify very cleanly to fit and might get you by.

pormgb looked into aftermarket headers for his '02 camaro build:
[You must be registered and logged in to see this link.]
He still had a difficult time with the steering shaft.

Would love for him to chime in on this thread. Does anyone know the post limit required to PM a member?

Thanks, JackPack!!

The smog inspection has one very scary variable, inspector knowledge. So adding aftermarket parts can cause a lot of confusion for the inspector (keep it stock). In theory, CARB certified headers that match the donor car could work (2002 Camaro), but you will have a hell of a time getting the steering shaft to work.

I tried a set of Camaro JBA SMOG certified headers, but there was no way to get the steering shaft past the flange. In my mind, the 10 degrees milled left-hand Camaro exhaust manifold with steering shaft mod is the safest way to go.

I selected a 2002 Camaro because I could get Camaro cats within the allowed 3" maximum distance from stock. You grab Camaro manifolds and cats, add a 3" extension and make sure the cats will fit under the car. You can't use 1998-1999 Camaro manifolds because the RH side dumps into the firewall. Camaro manifolds dump basically in the center, and that allows the extension tubes to keep the cats within the 3" rule.
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Post  Ordie792002 on Sat Nov 09, 2019 7:52 pm

I have a 1983 944 LT1 converted car that is smog legal and am looking to put an LS1 into it. What do you mean by 10 degree milling of the exhaust manifold? Do you have a diagram you can share about this? Also, where can I source a modded steering shaft from?

Ordie792002

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Post  pormgb on Sat Nov 09, 2019 8:29 pm

Ordie792002 wrote:I have a 1983 944 LT1 converted car that is smog legal and am looking to put an LS1 into it. What do you mean by 10 degree milling of the exhaust manifold? Do you have a diagram you can share about this? Also, where can I source a modded steering shaft from?

You are putting a 10-degree slant form the top of the manifold to the bottom of the head surface, this tilts the exhaust manifold towards the block so the pipe will clear the steering shaft as it leaves the rack.

[You must be registered and logged in to see this link.]

I made the steering shaft from D rod and Borgeson Universal Steering U-Joints. You can buy the parts online, and they use set screws, so no welding is needed. The bracket needs to be fabbed up, but any welder can make that.

[You must be registered and logged in to see this link.]

Steering shaft clearance.

[You must be registered and logged in to see this link.]
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