Euro 535i LS Turbo Build Thread - 7/10/19 Dyno update

fukoa · Post by **fukoa** » May 17, 2012 11:46 PM

today I had to work on some Vette ZR something with 325 wide tires in the back , the car had only 10k miles .
took it for a test drive and I was surprised to find out that it can easily brake the tires loose in second - no boost under the hood . after the test drive I thought about this build and I asked my self these simple questions
- how much more power does a man need ?
- how can you make an e28 with boosted LScrap hook up to the ground ?
and last - what kind of use you can find for it outside the race track ?
but hey that is just me
more power to you guys
good luck

AlpinaE24 · Post by **AlpinaE24** » May 17, 2012 11:56 PM

Great progress!

T_C_D · Post by **T_C_D** » May 18, 2012 8:45 AM

fukoa wrote:today I had to work on some Vette ZR something with 325 wide tires in the back , the car had only 10k miles .
took it for a test drive and I was surprised to find out that it can easily brake the tires loose in second - no boost under the hood . after the test drive I thought about this build and I asked my self these simple questions
- how much more power does a man need ?
- how can you make an e28 with boosted LScrap hook up to the ground ?
and last - what kind of use you can find for it outside the race track ?
but hey that is just me
more power to you guys
good luck

I think what is lost on some people is that I don't drive my car WOT every second. The v8 is going to provide outstanding drivability and very good HWY MPG. I have a set of slicks for the track and am making mods to the rear trailing arms to fit 275 drag radials. Granted the car will be traction limited with the 245 tires but it just takes some skill with the right foot and hands to have huge fun.

T_C_D · Post by **T_C_D** » May 21, 2012 1:04 PM

Took the trip up this weekend. Did some more cutting on the car to make room for the intake air filter and charge piping. Also did some trimming to make room for the 2" radiator! Very happy about that.

Before/after pics of sheet metal removed (although opposite sides)

Sweeney had to start over on the downpipe (need access to #7 spark plug). WG piping is nearly complete. Remainder of the exhaust is nearly finished as well.

alpinewhite · Post by **alpinewhite** » May 23, 2012 1:41 AM

That thing just looks out right CRAZY!

T_C_D · Post by **T_C_D** » Jun 10, 2012 9:54 AM

Sweeney and worked all day on the car yesterday. I think we are finally done cutting out sheet metal. This is the partial pile.

The downpipe is ready to be dropped at the coaters. Waiting on the driveshaft before completing the rest of the exhaust.

The radiator is hanging on it's own although an second set of brackets will be added. The plumbing for the intercooler is sorted out so it is being sent back to Bell to have the tanks completed.

We are started to weld in some struts to support sheet metal that has been removed.

Needed to tie the valance to the body since it's missing the center section that used to connect it.

I may be a while now before there is an update. Need to wait for the intercooler, downpipe and driveshaft to proceed.[/img]

Duke · Post by **Duke** » Jun 10, 2012 10:08 AM

Griffin radiators are the bomb.

T_C_D · Post by **T_C_D** » Jun 10, 2012 10:12 AM

Duke wrote:Griffin radiators are the bomb.

It's 2" thick and was a challenge to fit with the intercooler and fan!

itsbrokeagain · Post by **itsbrokeagain** » Jun 17, 2012 8:53 PM

I need to start on mine. Work is finally clearing up and getting organized, going to start the tear down hopefully this week.

T_C_D · Post by **T_C_D** » Jun 21, 2012 3:19 PM

clongo · Post by **clongo** » Jun 21, 2012 3:28 PM

Nice! The whole build looks like its moving along nicely.

wkohler · Post by **wkohler** » Jun 21, 2012 3:44 PM

Is that a one-piece driveshaft? Are you sure that's a good idea?

Pretty though.

T_C_D · Post by **T_C_D** » Jun 21, 2012 3:46 PM

wkohler wrote:Is that a one-piece driveshaft? Are you sure that's a good idea?

Pretty though.

Yes. Why wouldn't it be a good idea?

wkohler · Post by **wkohler** » Jun 21, 2012 3:50 PM

Bill in MN's experience comes to mind. I thought at the time that happened it was determined that the angle being slightly off puts an excessive load on certain areas, which is what allowed his shaft to get twisted and split. Perhaps my reading comprehension and retention is poor.

T_C_D · Post by **T_C_D** » Jun 21, 2012 4:07 PM

wkohler wrote:Bill in MN's experience comes to mind. I thought at the time that happened it was determined that the angle being slightly off puts an excessive load on certain areas, which is what allowed his shaft to get twisted and split. Perhaps my reading comprehension and retention is poor.

I am using a t56 which use a slip yoke not a fixed flange like a getrag. The yoke can move up to one inch fore/aft. Remember we made the trannyount. We should be able to an acceptable angle.

Post by **Nebraska_e28** » Jun 21, 2012 4:17 PM

T_C_D wrote:
wkohler wrote:Bill in MN's experience comes to mind. I thought at the time that happened it was determined that the angle being slightly off puts an excessive load on certain areas, which is what allowed his shaft to get twisted and split. Perhaps my reading comprehension and retention is poor.
I am using a t56 which use a slip yoke not a fixed flange like a getrag. The yoke can move up to one inch fore/aft. Remember we made the trannyount. We should be able to an acceptable angle.

Also with the extra length of your motor/tranny combo I'd imagine this shortens things quite a bit. I'm no math expert, but I vaguely recall a formula to calculate the length vs. DS thickness when compared against resonant frequencies given an rpm range.

T_C_D · Post by **T_C_D** » Jun 21, 2012 4:26 PM

The length from tranny output shaft seal to diff flange is 51.75".

Jelmer538i · Post by **Jelmer538i** » Jun 22, 2012 1:24 AM

Did you cut out the front cross member? Doesn't this affect the strengt on the body/frame rails?

T_C_D · Post by **T_C_D** » Jun 22, 2012 6:03 AM

Jelmer538i wrote:Did you cut out the front cross member? Doesn't this affect the strengt on the body/frame rails?

Yes. We are replacing it.

T_C_D · Post by **T_C_D** » Jul 08, 2012 11:16 AM

Duke · Post by **Duke** » Jul 08, 2012 11:19 AM

^^^ Sexy!

Mark 88/M5 Houston · Post by **Mark 88/M5 Houston** » Jul 08, 2012 12:50 PM

Pretty work, as always when you two get together on a project.

scarey013 · Post by **scarey013** » Jul 08, 2012 10:29 PM

Yeah, this is a really nice build. A lot of attention to detail as always. Good work, guys.

Scott

wkohler · Post by **wkohler** » Jul 09, 2012 12:14 AM

Pretty interesting 'n' stuff.

T_C_D · Post by **T_C_D** » Jul 23, 2012 10:12 AM

Finally got to work on the car after 4 weeks. We removed the tranny,attached the slave lines, made some fitment mods and reinstalled it. Installed the driveshaft and mocked up the exhaust. Sweeney is working on the tip this week.

A really important part of an engine swap is checking the driveline angles. Since we are using a single piece driveshaft with u joints the pitch of the engine/tranny and differential should be as close as possible. 3 degrees difference is the max acceptable.

We went to great lengths positioning the drivetrain in a position that is as flat as possible. As it turns out we were rewarded with near perfect angles.

The engine/tranny sits at 5 degrees and the diff is at 4.5 degrees.

itsbrokeagain · Post by **itsbrokeagain** » Jul 23, 2012 8:20 PM

Looking very good . Just curious, but is there any room to move the IC forward a hair? Say to fit an AC condenser?

T_C_D · Post by **T_C_D** » Jul 24, 2012 4:25 PM

itsbrokeagain wrote:Looking very good . Just curious, but is there any room to move the IC forward a hair? Say to fit an AC condenser?

There isn't room for a a/c compressor much less a condenser. If you want boost and a/c than a supercharger is probably a better idea.

T_C_D · Post by **T_C_D** » Jul 24, 2012 4:28 PM

Single 3" to Dual 3" exhaust tip by Sweeney.

fries_man · Post by **fries_man** » Jul 28, 2012 2:24 AM

Unfreakin believable build here. Can't wait for another update! Great fab work!

T_C_D · Post by **T_C_D** » Jul 30, 2012 11:33 AM

Had an abbreviated work day at Sweeney's on Sunday but still got some things accomplished. Buttoned up the driveshaft and halfshafts. Filled the tranny, adjusted the stops on the shifter and installed it. I also installed a 7.25psi WG spring and did the final tightening of the WG, turbo and downpipe. It's so good to tighten a nut down with hopes that it is the last time before driving the car.

Meanwhile Sweeney made the brackets for the intercooler and we decided on a strategy for the intake, intercooler and radiator piping.

Still so much to do but each weekend we get a little closer. I have to say that siting in the car and shifting through the gears was exciting.

MyE28.com

MyE28.com

Euro 535i LS Turbo Build Thread - 7/10/19 Dyno update