Jadz928

All good questions.
I ran the the belt throught the "forward facing" slot midway along the seat bottom.
I ran the single back-strap to the anchor point just behind the rear seat. FWIW, the thread is a 5/16 THD x 1/2" L

The seat fits snug on its own and the seat back rake angle matched the 928s seat back angle.

The forward lap belt is loose (or more specifically, not under compression) but locks when the seat is pulled forward sharply.

The guy who help me install this seat was very satisfied with the fit and rigging.
He has installed a ton of seats and a ton of cars.

Let me know if you need any specific pics.

TheClairvoyant

Thanks for posting your finding about the Sunshine Radian. Now I know there's a seat I can use that doesn't require rear shoulder belts.

Jadz928

^^^No problem. I may start a new post specifically for it to make it easier to search here.

mickster

Sunshine now also makes a model 80 (80 pound kids) which may also work-they seem to both be very close in size and solves the none-3 point belt problems.

I'll try the current boosters we have-the key is that the seatbelt MUST lay flat across the child's lap (not up on the waist) and the shoulder belt must land right on their shoulder-not cut into the neck or risk rolling down off the shoulder.

Michael

Hold On

Stefan. You have an email. Kevin

Manfred

Thanks for the info. It sounds like a nice setup. Thanks also for the bolt size for the latch. A few pics would be great but not necessary if you're busy.
p
Yeah, it's not always easy to get it across their lap and not their abdomen.

Nicole

That seat looks great!

You might want to put something between the original seat and the child seat to protect the leather. Otherwise you might end up with abrasions or other damage of the leather.

Jadz928

Nicole, Thanks for the tip. I will do that. Happy 4th!

mickster

For $20 at Buy Buy Baby or Babies R Us they have a great pad that protects leather and also reduces slippage of the seat. There are cheaper ones too.

ptuomov

This child seat business is a bit nonsensical.

First, the statistical evidence is that for <2y there's a significant benefit from an infant seat. But for >2y there's no evidence of benefit relative to just wearing seat belts. Yet the crazy mothers and manufacturers have lobbied laws in that require grown men to sit in booster seats. Car manufacturers spend billions to make the back seat safe. Then crazy mothers put Chinese toy manufacturers in charge of redesigning it?!.

The usual deal, disappointing but not terribly surprising.

Here's someone making that point:
http://freakonomics.blogs.nytimes.co...ont-work-well/
http://freakonomics.blogs.nytimes.com/tag/car-seats/
I don't know Dubner personally but I know Levitt and he's a serious researcher.

Because of this, a logical 928 driving father (we're mostly fathers, not mothers) is left with a conundrum of conflicting goals:
- How to satisfy the illogical wife / ex-wife / baby mama when logic, evidence, data can't be used?
- How to protect yourself against those who are paid (with your tax money) to "protect" and ""serve"" you
- How to actually keep your children safe

Personally, I have ended up resolving this problem in the following way.
- For babies, I use the rear-facing infant seats, they work. Can't put one on the back seat of a 997 C2SC, so I have to take the M5 when driving babies around. Life is hard.
- For older kids, find the base-only booster seat that is exactly the right height to put the seat belt over the collarbone the right way. For Porsches, the rear seat belts are already at about the right height for older kids. Therefore, the task is to find the slimmest possible booster base.

The booster seat backrest is by my estimation not beneficial to older kids, unless your objective is to get your kid to hit her head to the seat in front of her just a little bit earlier (and thus harder.) My estimation and about $2 will get you a venti coffee at Starbux.

Goes without saying that don't do anything without thinking it thru with your own brain. Don't believe the crazy mama, the legislator being paid off by the Chinese toy manufacturer, or the drunk guy posting on the internet.

ptuomov

How is that backrest going to make a child safer? What's the theory?

mickster

The backrest doesn't make them safer (other than to keep their head whipping left or right in a side impact). The key is the shoulder belt rests correctly on the child's shoulder. That is the main function. Newer boosters offer a hard shell with padding and side impact protection. To your point above-you can take the back off of this seat and just use the base.

mickster

Just checked the specs-the 65, 80 and XTSL (also goes up to 80 pounds) all are the same size.

I would recommend going for the 80 or XTSL if you plan to have your child in there for a few years. Tell them the 5 point harness is a racing harness! Unless they will be tall enough not to have a booster (but at least it will give them more protection than a lap belt).

http://www.skjp.com/products/97556/Car_Seats

Michael

Landseer

Keeps them contained. Mom can't drive while talking on the cell phone if kids are jumping around the cockpit.

Since they didn't have carseats, if they had had cell phones when I was little, I probably wouldn't be here now.

Thinking back, I was the oldest. So I had dibbs on the best spot in the car, laying up on the deck under the back glass of a 59 chevy.

Nicole

Tuomo: I'm not convinced it is as simple as you make it sound...

The way the belts run, they are often too high over the upper body of a child.

The seat puts the child higher up, correcting some of this. The back rest - if designed properly - moves the child a bit further forward, further correcting the belt's position (if it doesn't have its own belt) and protects the sides of the child's body and head in case of a side impact.

There is a whole science to it, and I don't claim to be an expert. But I don't think there is a reason to dismiss [well designed] child seats entirely.