911 re-body, from RSR+ to the EVO2.

[ted]

This was the shape of my 1969 911T.

I was at a major decision point on the project.
The front and rear bumpers and the 2 running boards are all one off prototype pieces.
To continue 4 separate molds would need to be made of the 2 bumpers and 2 running boards.
That would be roughly $4,000+ for four molds.
Plus another $1,200+ for the first 4 parts I made with the new molds.
So cost to be able to replicate (forever) in stronger and lighter weight fiberglass about $5k+.

Another consideration was the huge rear flares.
They were fit for a 27 inch tall tire and I wanted to return to a 25.5 tall tire.
To continue the rear flare would need to be reshaped.

I chose to abort the RSR+ bodywork.
Imho it made sense with respect to aero, weight, $$$ spent and $$$ to be spent, resale value and cool factor.
Another long hood bites the dust.

The new body will be similar to the 993 EVO2.
The EVO2 body should have better Aero, less drag and save about 200lbs.

Here are some in progress photos.
The body transformation should be complete in about 2 weeks.
My go to guy on this project is John Simone.
Located in north San Diego he has completed 18 of these transformations out of his garage.
10 street cars and 8 race cars.
This version is a street legal race car.

The EVO2 style nose is actually a 993 part.
Here I am modifying the front tub for the EVO2 nose and side cooler plenums.
Note on the floor in the back ground the EVO2 nose and black oil cooler plenums.
Can in the front center of the tub is the front air jack.

The tub's new shape clears the 993 side mounted coolers and plenums.
These photos show where John has fabricated and welded the replacement panels.

The new tub from the outside.
Here I'm modifying the early firewall to accept a late model dual brake M/C.

[Bill Verburg]

That's going to be nice

[PorscheGuy79]

Ted, you crack me up. Nice work, its gonna be flippin sweet.

[ted]

Thanks guys.
You can tell spring is here as I've cut my off my rear fenders again.
The new fender mounting flanges have been sanded back down to bare metal.
Dzus fastened fiberglass fenders are next.
The cable feed for the tail base latch was removed.

John is a very capable guy.
He makes his own molds and body parts.
Here the rear fenders still in their molds receive final prep.
Note the rock cushion on the inside of the fender.
This consists of a light wieght cushion material that was kept dry (resin free) and light.

The rear fender is fitted to the car.
This mold incorporates the bolt on flare into the fender.
Later bolts could be added to create the effect that the flare was actually bolted to the fender.
This mold also incorporates part of the running board.
Note John has made and already fitted his light weight fiberglass door.

John checks the door gaps on the passenger side.
Door finish is very nice and light weight.
They include the window channel and finished interior too.

Here the inside hood piece is bonded to the out side hood piece.
It is rather a luxury to discuss with John how light to make a part moments before he starts on it.

[DW SD]

Mike-
I'm glad you have released your secret. I saw the car and would have walked right by it had Mike not asked, "what do you think of my car??) It looks very nice! The new cooling system is very trick, as well and won't add to lift at the front, like many of the early cars.

Having seen the old fenders upclose - I know Mike's car is losing some big time weight here!
Street legal, low-weight and improved AERO! What could be better?

GREAT project!

Doug

[Puka Puncha]

WOW!! Awesome work man. Thanks for sharing the pics

[Jack Olsen]

Originally posted by ted
Another long hood bites the dust.

This is like the 'big daddy' version of Chris Streit's recent upgrade/update.

I'm sad to see another long-hood racer disappear, but the bottom line is the bottom line: if you want to go faster, you've got to go to the later technology and design. The early body design was not great from an aero or weight point of view. The later stuff is a huge step forward.

And that car is going to be shooting by so fast that no one will be able to see the body style anyway.

[JeremyD]

You must poop money. Looks very nice!

[ted]

Thanks guys glad you are enjoying the photos.
DW, nice of you and Jim to stop by.
It was a fun lunch, project progress took the afternoon off.

Jack hope we can share a canyon road someday soon.

The front fenders are fitted to the car.
The new fender weighs about 6lbs, the old RSR+ front fenders were closer to 23lbs.
Counting all 4 fenders that could be a 70lb+ reduction.
These will be secured via SS Allen button heads with self locking nut plates riveted to the fiberglass.
Functioning headlights will be installed.


John made these fenders to fit his other nose, an EVO 1 style that he modifies from an AIR part.
Here is a photo of another car John bult with his EVO1 style nose.

The EVO2 nose also an AIR (993) part is approximately 1.5 inches wider on each side.
So we'll modify the fender to blend it into the EVO2 nose.
John's next front fender molds will be matched to the EVO2 nose.
Good to know should I ever need a front fender.
The nose has been fitted to the car, checking the fender fit.

Next week we should have the car on the ground with the rear bumper, tail base/wing, running boards and front fenders finished.

[Cory M]

That is going to look great, I have seen a few of John's cars and they are all beautiful, and fast! Now you've got me thinking about another project....

Have you figured out how you're going to paint it yet?

I've had this picture saved on my computer for a while:

[Tinker]

I am very curious to see how much a decrease in lap time the more efficient body pieces results in.

What is an estimated guess for a relatively fast track like Willow?

Tinker

[ted]

Cory great car, man I had been thinking a dark blue.
But having watched the Tribute Saturday I found it difficult to see the darker colors.
Then you post that and white is looking real good.
Besides it was the color of the car before.

Tinker as for aero advantage I don't know how to accurately say?
Some have said over the length of a long straight like Cal Speedway it could be one or two car lengths.

The car ran 1:27s with the old body at Big Willow.
If should run quicker now from the aero gain and the 200lb reduction.
There is a boatload of variables, perhaps many I'm not even aware of.
Back to grass roots, so if you could say how much faster this car would be if it was 200lbs lighter, say that were a tenth or two then maybe any gains above that are aero?

Maybe someone can offer a little more scientific answer?
What is the drag coefficient of an EVO2 compared to an old RSR or to an old 935?
Safe to say mine had a higher drag coefficient than the old RSR cars.

[BReyes]

Wow dude. Like the long hood is but a memory now. Good to see your evolution!

Be safe.

Regards,

[rattlsnak]

Ted, i had the perfect setup for you!

http://forums.pelicanparts.com/showthread.php?threadid=283739

[ted]

Quickie update.
Front tin work finished/painted.

Front bumper with John's 993 brake ducts installed.
Front turn signal (not yet installed in photo) was modified to fit beside the brake duct.
The lower center ducts direct air over plenum mounted oil coolers.
The air then exits through the triangle shaped side ducts.

Close up of the blended brake duct.

Inside the front bumper.
John makes these large black plenum's that hold the oil coolers.
The opening at the top is where the cooler slides in.
A cap then covers the opening forcing the air over the cooler.
Back of brake duct visible.

Here's the tail base and Dzus fastened rear bumper.

[YTNUKLR]

Slicker than snot!

[ted]

Thanks Scott.

Here is where it is after 4 weekends.
Street legal and licenced track car.
Transformation should be complete next weekend.
Just a little track prep and then a local DE mid July.

[herman maire]

That looks beautiful..... I always loved the 993 GT2 body style.

When you had the RSR body, how was the power from the stock
3.6? With tires like that it looks like your going to need 4-500 HP to even think about breaking the rear end loose or were you able to spin the tires in 2nd with the old RSR?

Cant wait to see your lap time's

[cstreit]

Wowee Zowie....

Makes my conversion to the 965 look like a walk in the park. Very nice job!

[ted]

Originally posted by herman maire
That looks beautiful..... I always loved the 993 GT2 body style.

When you had the RSR body, how was the power from the stock
3.6? With tires like that it looks like your going to need 4-500 HP to even think about breaking the rear end loose or were you able to spin the tires in 2nd with the old RSR?

Cant wait to see your lap time's

Hi Herman,
Yes it is prime now for a 550 hp 996 twin turbo drive train.
That's not in my budget and not sure going that fast is my goal.
The 3.6 made 306hp at the rear wheels.
Engine specs and Dyno sheets here.
Here are some tire to hp ratio comments from Cary owner of ERP.
But to answer your question in the middle of Big Willow T2 (fast right sweeper) in 4th gear at 80+ mph power oversteer is still very attainable.
It is a momentum car but that style of driving suits me.
It ran a 1:27 on its second weekend out.
With the changes and as I get acclimated to it the times should improve.
Anyone know of a big turbo motor cheap?
thanks,
Mike


Cary's comments on the tire to hp ratio...

Originally posted by CLE
I got involved in the testing a bit late but, quickly found the car has a ton of potential. As far as the amount of tire, I think with the weight of this car and the torque of the 3.6 you can run about as big of a tire as you want as long as you're not getting much over 140 mph often. The most important part now that the car has been shaken down some, is to put some brand new rubber on it now. I also have to add that not only does the car look cool but it REALLY sounds cool with that 2 in to 1 tip Jae built. There is a LOT going on with this car and it's going to take a little more effort to get it dialed but, I'm sure you'll see sub 28's soon and then Mike will have a better handle on what it will do from there. About 5 years ago I worked with a 1969 912 that had a stock 3.6 with headers 10.5" and 13" wheels with as big of rubber that would fit on them and we did a low 1:23 with that car. Mikes car is going to go fast....really fast ... soon.