29 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHMy 2003 C4S LS3 Build, Cold air intake.
Leading reported evidence
Install by a fellow c4s brother
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
on another tack, check out the twin turbo kit installed by a fellow C4S brother on the forum.
Leading evidence: 'Install by a fellow c4s brother' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install by a fellow c4s brother' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
A few on this forum have installed the side scoops...i believe 1 person has done it to supply "cold air" to his supercharger
Replace by fabspeed's carbon fiber competition intake system
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
Lastly, the restrictive factory airbox is replaced by Fabspeed's Carbon Fiber Competition Intake System which increases the cold air flow into the engine for better power and sound.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
if you clear using reader and bad sensor in 3 cycles it returns...then cheap fix to replace ....common
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Not sure about cutting hole in the glass, but you might want to consider replacing the glass with Lexan.
Replace by fabspeed's carbon fiber competition intake system
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
Lastly, the restrictive factory airbox is replaced by Fabspeed's Carbon Fiber Competition Intake System which increases the cold air flow into the engine for better power and sound.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
And that might be a better idea to replace the whole window but I was maybe wanting to keep the visability by only using the aft 8" or so for the scoop.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
And that might be a better idea to replace the whole window but I was maybe wanting to keep the visability by only using the aft 8" or so for the scoop.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
29 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
6SpeedOnline: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T035758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Thought I'd Let ya'll know about a project I'm in progress on. I'm installing an LS3 480hp GM motor in the rear of my 996. I've also cut an access panel in the rear of the passenger conpartment for engine access. Now here's where I'd like some imput. I've also decided to build a cold air intake that would use the rear windows with a 2 1/2 hole cut in the aft part of window with a scoop on the outside. Has ANYONE done this in the past.
My Build on LS1Tech;
http://ls1tech.com/forums/conversion...onversion.html
Pictures of my idea mock up
Question is CAN a hole be cut without removing window?
Fabspeed's 991 Carrera Performance Package
replaces the restrictive OEM side mufflers and center muffler for a deeper, throatier exhaust note and improved power and throttle response. The included Sport Headers replace the restrictive factory headers and cats with high-flowing performance headers and 200-cell HJS Sportcats. Lastly, the restrictive factory airbox is replaced by Fabspeed's Carbon Fiber Competition Intake System which increases the cold air flow into the engine for better power and sound.
Features:
*Saves 11.45 lbs. / 5.2 kg
*Dramatic improvement in sports car sound and power throughout the RPM range
*Constructed from high-quality 14-16 gauge C.N.C. mandrel bent T304L stainless steel for optimum flow and maximum durability
*Maxflo exhaust components are direct replacements for the OEM mufflers that bolt to the OEM resonator or Fabspeed's X-Pipe resonator bypass setup
*Performance package replaces the restrictive OEM side mufflers and center muffler with valves for a deeper, throatier exhaust note
*Sport Headers feature C.N.C. mandrel bent equal length primary pipes utilizing a 3-into-1 high velocity investment cast pyramidal merge collector
*This package is emission compliant as Fabspeed only uses German imported, HJS systems 200 cell per square inch tri-metallic sport catalytic converters
*No C.E.L. and safe for emissions
*Carbon fiber Competition Intake is a direct replacement for the OEM airbox and improves cold air induction to the engine for improved throttle response and overall power
*Package includes deluxe quad-outlet T304L stainless steel tips
*Maxflo performance products are backed by the Fabspeed Lifetime Limited Warranty
View all 991 Carrera Products Here
Ordering
Phone:
You can reach me directly by calling [phone removed] ext 246 to
place your order over the phone.
Payment Methods:
We accept payment via Credit/Debit Cards (Visa, Mastercard,
Discover, American Express), Paypal, Bank Wire Transfer, and
Bill Me Later. We welcome all forms of payment for United
States and Canada. For international clients, we require
payment via Paypal or bank wire transfer.
Shipping:
We ship all over the world, and offer very competitive rates
in doing so. The majority of our shipments are shipped fully
insured via FedEx, however we do utilize UPS, DHL, and
various freight companies as well. The most effecient
shipping method is always chosen. Expedited shipping is
available per request.
Hours of Operations:
Here in Arizona, we do not have Daylight Savings time. As
such, our hours of operations are as follows:
March-October: Monday through Friday 9am-6pm PST
November-February: Monday through Friday 8am-5pm PST
We are closed for business Saturday and Sunday.
Contact Info:
Phone: [phone removed] x246
Email:
[email removed]
Website:
www.vividracing.com
Feel free to contact me via PM, email, or phone if you have
any questions.
Not sure about cutting hole in the glass, but you might want to consider replacing the glass with Lexan. Then you could include a NACA duct to funnel the air efficiently.
I'm sure there are issues, maybe you could get air from under the car instead?
Good luck with the project.
That's the kind of help I was looking for, I couldn't think of what they called the NACA Scoops, Thanks much. And that might be a better idea to replace the whole window but I was maybe wanting to keep the visability by only using the aft 8" or so for the scoop. Still Brainstorming
Thanks Much
Quote:
This is a wide body C4S and I can't for the life of me figure out HOW they route the air on the Turbos. This is my first Porsche experience and I've never seen a Turbo in person. And I'm not sure about cutting rear fenders.
Quote:
There is a "kit" available for nonturbo 996's
A few on this forum have installed the side scoops...i believe 1 person has done it to supply "cold air" to his supercharger
Quote:
I did some searching and can't find any info. I looked at the stock TT fender and that hole and mount might be more then I can handle. I would like to install both, have the window scoop for cold air intake and use the fender scoop for engine compartment cooling. Still thinking!
Hi...mine is an 09 coupe...same problem every once in awhile...generally if due to hard driving in 3 cycles light goes out...if you read with obd ii reader a lazy sensor. With number showing which one is acting up...
if you clear using reader and bad sensor in 3 cycles it returns...then cheap fix to replace ....common
If lucky just your gas cap loose and light goes out after 3 drive cycles too...
Good luck...
i have seen Porsche 993 911's on YouTube that had v8's in them and I am sure at least one had the venting through the side windows as you describe.
I just did a search on YouTube but couldn't find it, but there are lots of porsches with v8s. Lots of LS1 motors.
Talked to the glass experts and they say no way to cut a hole in tempered glass. Thinking about replacing with the Polycarbonate and adding my own scoop/vent. Thanks for the GT Racing link, that helped alot. Now do I try and remove the rear windows myself? Never messed with windows before, will have to do some research. I'm also wondering about the noise factor and think I'll give it a try and even if it doesn't work I can use the scoops to bring some cooler air to the engine bay.
cant quite make out that aircraft you have there, but she looks a little bit like a warthog with a 15se front end. nice. lotta horsepower in there I bet.
on another tack, check out the twin turbo kit installed by a fellow C4S brother on the forum. nifty. I also recall a fellow in Santa Rosa, Northern California, who was putting a big chevy corvette v8 in his 996. pics were really interesting. Not sure if that was on this forum or over on Renntech. But for certain worth looking for. Good luck on the project.
here's the link on the twin turbo set up. Boo had lots of fun with this one on his C4S. some pretty scary videos are out there of this set up at play.
https://www.6speedonline.com/forums/...uding-gt3.html
Quote:
previous note was right. you dont have the turbo side scoops on a C$S because you dont need them. Why dont you get a turbo and just take out the engine? or, I'm pretty sure you can get Porsche turbo body parts, rear side panels, with the scoops already cut out. aspiration for the v8 will be a problem. I liked the suggestion of putting in a bottom scoop like the Mustang P51 fighters. But them, same as the Mustangs, your pretty vulnerable from underneath. I do think your best bet is to simply get the turbo side panels and convert the turbo intercooler scoops to your air intake. Course then the car would look like a turbo, not a C$S. I'd actually stay away from the window scoops, might spoil the lines of the car. But its a cool project, and I'll bet you get it all worked out ok. The car will surely be a screamer. What are you doing to beef up the rear suspension, by the way? Good luck with this.
Quote:
No need for suspension build up. The LS motors weigh the same as the 96 and are 80lbs less then the Turbos. Buy a turbo and remove the engine, Why? This build is possiable because of a IMS failure.
I'm surprized by the weight, never would have thought that. Sure understand the IMS. Sorry that happened. I was so worried about it that I did the LNE fix as a prophy. Sleep better at night. Your skills re this project are awesome. Keep us advised of your progress. I'd love to see the car someday. May be in New Orleans later this year. Cheers, jl
ps: what's the aircraft?
yep, good old A10. Best warplane ever made, imho. hard to tell from the angle of the photo, but that portside engine up there gave her away. Thanks for sharing...I was pretty sure I had it right on first impression. Cheers,
Please keep this thread updated with LOTS of pictures!
I find the LS motor swap into a 996 fascinating! I really want to find a salvage title or IMS failure 996 & do a LS3 swap into it. Heads would roll!
Are you installing a brand new LS3 motor or taking it from a Corvette or Camaro?
Are you doing the install yourself...if so I'm assuming you're more than a shade tree mechanic?
I've been following this blog closely...not sure if you're familiar with it
http://996ls1.blogspot.com
Kchoiej, Thanks, I'm still thinking about the motor source while I'm getting the rest of the car in shape. I'll probably go with the LS3/480hp from Summit or Jegs, mostly cause it's plug/play and I won't have to worry about computer issues.
For a more complete info go to
http://ls1tech.com/forums/conversion...onversion.html
Got the engine rear access panel complete and the remote power steering pump installed, need to wire it. have not purchased the LS3 yet, spent too much of our savings on the house last couple months.
This is a source reference. Confirm exact model applicability in the original material.
