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Search: Posts Made By: jpurban
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Forum: 996 Forum
12-15-2018, 12:02 AM
Replies: 77
Views: 10,260
Posted By jpurban

Portless designs relieve pressure through a check...

Portless designs relieve pressure through a check valve in the plunger rather than directly to the reservoir. This is a more complex design, which explains why the OEM MC is more expensive than the...
Forum: 996 Forum
11-30-2018, 03:53 AM
Replies: 77
Views: 10,260
Posted By jpurban

https://cimg2.ibsrv.net/gimg/rennlist.com-vbulleti...

https://cimg2.ibsrv.net/gimg/rennlist.com-vbulletin/824x660/portlessdesign_f9a40bd47f6c978eea11810df8be88e9b8494432.jpg
Did some further research... I think I've found something that supports the...
11-20-2018, 01:44 AM
Replies: 0
Views: 361
Posted By jpurban

996TT Suspension: Motion Ratios?

Calling on the suspension gurus here at Rennlist... Would really appreciate an expert weighing in on the 996TT motion ratios.

I think the wheel-to-spring motion ratio is about 1.0 for both front...
Forum: 996 Forum
11-19-2018, 09:45 PM
Replies: 77
Views: 10,260
Posted By jpurban

@GVA-SFO, Yup -- You get exactly the same...

@GVA-SFO,

Yup -- You get exactly the same error I do, under the same conditions.

If we found some really capable firmware coder, we could eliminate the test, BUT the test is there for a...
Forum: 996 Forum
11-18-2018, 06:57 PM
Replies: 77
Views: 10,260
Posted By jpurban

@GVA-SFO, The 4460 error is related to the...

@GVA-SFO,

The 4460 error is related to the analog voltage of the brake sensor on the back of the ABS unit (not the PSM boost pump). The sensor has a value of about 0.6V at 0 psi. The non-zero...
Forum: 996 Forum
11-14-2018, 01:30 AM
Replies: 77
Views: 10,260
Posted By jpurban

I just sent an e-mail to TRW, but I'm not...

I just sent an e-mail to TRW, but I'm not expecting much... I guess I'm cynical -- Corporate customer service usually disappoints, right? We really need to talk to a TRW engineer with access to...
Forum: 996 Forum
11-13-2018, 07:21 PM
Replies: 77
Views: 10,260
Posted By jpurban

I spent years on this issue and never found a...

I spent years on this issue and never found a work around. The OEM master cylinder has a special bypass circuit in it that is required for the PSM system to function. I think it is a bypass that...
11-07-2018, 11:45 PM
Replies: 12
Views: 732
Posted By jpurban

Same disk, different part number, $100 less

I asked Kevin the same question yesterday after I realized I bought the 7.2TT disk instead of the 4.0 RS disk. I probably did it by mistake when I bought it several years ago in anticipation of an...
11-05-2018, 10:29 PM
Replies: 15
Views: 928
Posted By jpurban

Thanks for all the replies. Matt (GTGears) and...

Thanks for all the replies. Matt (GTGears) and Roger (CMS) have been very helpful, here and via e-mail.

I know a lot of folks install a differential as part of the process of converting to RWD,...
11-02-2018, 03:12 AM
Replies: 15
Views: 928
Posted By jpurban

Wavetrac Install Question

I've been sitting on a wavetrac for quite some time, waiting for my OEM clutch to give out to "justify" the upgrade. I think I'm getting close. So, I'm starting to think about the install...

Is...
11-01-2018, 10:31 PM
Replies: 7
Views: 710
Posted By jpurban

Thanks for the confirmation... I'll order a new...

Thanks for the confirmation... I'll order a new venturi.

Anyone ever researched a higher quality check valve for #16? That thing feels quite cheap -- almost no weight to it. Shouldn't really be...
11-01-2018, 01:07 AM
Replies: 7
Views: 710
Posted By jpurban

Venturi Reliability

Quick question... Is the Venturi tube (#9 in diagram) that is part of the intake manifold vacuum piping reliable?

I know it has an internal check valve. So, I thought I'd ask to see if it...
07-29-2018, 02:36 AM
Replies: 9
Views: 657
Posted By jpurban

Thanks, powdrhound. You're confirming my...

Thanks, powdrhound. You're confirming my suspicion. I've had issues since replacing my stock MC with a 997 version that has 12mm/12mm connection. The code I get is something like 4600 Pressure...
07-28-2018, 03:01 AM
Replies: 9
Views: 657
Posted By jpurban

997GT3 MC in 996TT - ABS/PSM Issues?

Looking for some confirmation...

Will the 997GT3 master cylinder (99735591030) work with the stock 996TT ABS/PSM?

Would love to hear from some folks successfully running both... Thanks in...
12-17-2017, 01:00 AM
Replies: 2
Views: 345
Posted By jpurban

Part Identification?

Howdy,

Anyone know how I can get a replacement "flanged rubber bushing" shown in the picture (pre-turbo air intake manifold)?

I can't even find a part number - It isn't in the PET.

Thanks...
10-08-2017, 01:54 PM
Replies: 9
Views: 1,149
Posted By jpurban

Dimensions?

I know you've sold these, but would you mind sharing the dimensions? Bolt length from under the washer face to the tip? Height and width (diameter) of the spacer?
04-08-2016, 02:31 AM
Replies: 2
Views: 519
Posted By jpurban

Front ARB Droplinks

I'll take 'em. I'll send you a pm with my paypal address.
02-12-2015, 04:47 PM
Replies: 1
Views: 1,051
Posted By jpurban

Question for Those Running KW V3 with Alternate Spring Rates

Looking for opinions from folks running KW V3 on their 996TT with spring rates different from off-the-shelf...

I have a set of KW V3 on my 996TT and I'm finding the off-the-shelf springs to be too...
Forum: 996 Forum
07-07-2014, 06:01 PM
Replies: 4
Views: 679
Posted By jpurban

Thanks

ECS, appreciate the feedback.

So, the Carrera bore is about 15/16 and the turbo is 1"... The units look the same and should be physically interchangeable, as you suggest. Both have one M10 and...
Forum: 996 Forum
07-05-2014, 05:07 PM
Replies: 4
Views: 679
Posted By jpurban

Brake Master Cylinder Differences?

Anyone know the physical difference between the 996 brake master cylinder parts 99635591040 and 99635591050?

I know the 1040 is for normally aspirated 996's with PSM (M476) and 1050 is for 996TT...
05-29-2014, 01:06 AM
Replies: 4
Views: 2,662
Posted By jpurban

Ingenious. Thanks for sharing. Managed to...

Ingenious. Thanks for sharing.

Managed to press the caster/thrust bushing out using my press, but I as stumped with regard to the inner bushing halves.
10-03-2013, 01:34 AM
Replies: 8
Views: 1,222
Posted By jpurban

Couple of questions for you... The thrust...

Couple of questions for you...

The thrust arm bushings are for hydraulic arms, right? 2006+ 997's...

What shim sizes do you have?
09-27-2013, 01:34 AM
Replies: 71
Views: 6,445
Posted By jpurban

I'm in. I'll PayPal you shortly.

I'm in. I'll PayPal you shortly.
09-12-2013, 12:02 AM
Replies: 7
Views: 512
Posted By jpurban

If you don't work something out with Zookie, the...

If you don't work something out with Zookie, the stock suspension from my 2001 996TT will be available later this year. Car has 25k miles currently, never been tracked and spent all but the last few...
08-20-2013, 01:07 AM
Replies: 4
Views: 1,162
Posted By jpurban

Thanks for the confirmation. My OEM wheels...

Thanks for the confirmation.

My OEM wheels weigh about 115 lbs -- 120 lbs or so including four 15mm spacers.

Forgestars would be about 80 to 85 lbs. Spacers not required since offsets are...
Showing results 1 to 25 of 28
 


 
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