spg993tt

amazing that such a small error or knock (not your error but of the guy to the very inside) results in a 50$k + bill for repairs. id imagine that tub is $25 to 30k delivered. moving the entire car over ahs to be 20k in labor plus the stuff that got busted, suspension, wheels, bodywork.
so brutal those street courses.

GT3 Techno

Tough on equipement when you come from 100+km/h to 0 in 2 inches...

Tub is 37.5k$ delivered

spg993tt

well, sorry to hear it dude. thats a rough check to write for no fault of your own.
that said, kudos to you for fixing it up perfect. i personally love buying cars like this, all fixed right and nice rather than worrying did the bodyshop fix or not fix the chassis correctly. costly to you, but the next buyer is going to get a mint machine.

GT3 Techno

Got a printscreen from the dash: precisely 21.9 hours, 3,051km and 0 overrev.

karlleonard

very hard if not impossible to over rev a 991 so the over rev question marks like the 997 have gone...in fact the 991s are much under reved compared to a well driven 997

mines got the same kms 3051...your races in Canada must be short as I only did 3 races and a few tests with nick tandy..!

karlleonard

our cars are insured so any issues we just reshell...! id prefur a reshelled car than a car crashed seriously and repaired...Porsche uk same as Canada will normally say ...new shell if it 50/50 to fix...why bother fix when can have new tub

GT3 Techno

We did 5 events (10 races of 45 minutes) + 1 qualificaiton of 30 minutes per event (we usually would drive half of it) + 2 practices of 30 minutes per event + 1 regional event for testing before the start of the season. You do 1,000Km per race ???

karlleonard

I did a good few tests ..at race weekend we got 2hrs practice ..30 min qually ..2x 40 min races

We also did Le Mans Carrera cup race which each lap was 9km ...! 21hrs is nothing on theses

GTgears

At one point I was told Porsche was advising the GTD teams in IMSA to cut the front clip off their cars and reweld it to facilitate future repairs from front end damage. The logic was that as design it was near impossible to repair this chassis with a new front clip. But if you cut and welded it in advance of damage you could undo your work after a crash and then clip it.

Not sure how many, if any, actually did this. The couple team engineers I talked to thought it a silly idea and were ready to just retub if needed. Seems your experience suggests that it the right approach.

GLWS. Great to watch you progress over the last few years.

Polesitter

Very true Karl. I begged the guys at PMNA to raise the rpm max where the downshift would actuate on the 991, but no dice. So we get very little engine braking out of the 991. I'm told the supercup guys had the same gripe. One of the nice things about the 997 is it shifts when you tell it to....right, wrong or otherwise. The benefit of old school and fewer nannyesque electronic gizmos.

GT3 Techno

Thanks.

I was told that 7 cars (991) were retub in the USA including one that was done twice.

karlleonard

3 tubs done in the uk so far ..! That's not many
My team did 7 in one year ..
Wonder how many Porsche USA carry in stock
I remember my friend in 11 had to collect from Germany as Porsche uk had none in stock ..!

racedata

7 Chassis in 1 year ? How many cars do you run ?!?

A bit of an expensive proposition, carbon tubs can be repaired easily, airplanes too, I don't see how aluminium can be so hard to repair...

GT3 Techno

None. Tub had to be shipped from Germany

Sure but a new tub is not very expensive so why bother ?

Polesitter

Karl, do you know how many labor man hours have been typical in a re-tubbing exercise on a 991 ?