NS F355 Project (Page 62/73)
fieroguru JAN 03, 10:41 AM
Here is a rough dimension pics. You can print them out larger and use some calipers and the known "scale" to get the other important dimensions as well. :



Not sure if you could use this one:
http://grabcad.com/library/ls1-race-engine

[This message has been edited by fieroguru (edited 01-03-2015).]

Yarmouth Fiero JAN 03, 10:57 AM
Thanks Fieroguru.... printing an engine drawing to scale is exactly what I am going to do. I have a 42" wide plotter in my office. I have the Grabcad images but they are only pdf's. Good for reference though. I think I'll be able to generate a pretty close 3D model from the selection of images and measurements I have. Thank you for the additional drawings you have posted.
seajai JAN 03, 05:24 PM
Yarmouth, I love watching your build, and bloozberry's too. The engineering and fabrication is amazing. I just wanted to interject some measurement info here since I have already been down the longitudinal route myself.

The Chrysler 3.5HO engine / 42LE transaxle I used was 26.5" long from the face of the harmonic balancer to axle centerline. Even clearancing the lower frame and firewall to move the engine as far forward as possible left me with a 2.5" axle offset with the wheel centerline without a stretch. Looking at the LS measurements, the engine alone is 24" long without accessories on the front, add in 8" for the transmission, another 3.5" for accessories brings the total to 35 1/2" long. That being said, you would need at least an 11.5" stretch to have a zero axle offset with the LS/01e setup. The other issue is the slope of the firewall will interfere with the waterpump pulley which would require cutting a hole ine the firewall, moving the engine back even further, or running a remote pump. It would be interesting to know what the Ferrari engine measures from the front of the engine to the axle centerline. Even though your wheelbase will be close to the F355, I'd bet the Ferrari engine is tucked up in the body a little further than would be possible with the Fiero spaceframe.

[This message has been edited by seajai (edited 01-03-2015).]

Yarmouth Fiero JAN 03, 09:37 PM
Thanks for the comments Seajai. I find it very satisfying to put the effort into the design of the project and almost as satisfying as the actual build itself. Your supplied measurements confirm exactly what I am finding in my 3D model..... basically everything behind the LS1 bellhousing has to be accounted for in either chassis stretch, shaft offset angle, offset drive system (a.k.a belt drive) or a combination of these parameters. When you add the thickness of the adapter plate, engine bay insulation etc, the length becomes even greater. As I have pointed out a while back, Blooz and I will be developing our 355 bodies together off the same plug so stretching the 355 any further than 3" is not an option. I am totally onboard with that. However, on a side note, I think the 355 spider would look very interesting stretched out like a lambo. I think the wide rear track of the 355 would accommodate such an extreme stretch and still be aesthetically pleasing. I wish I was an artist.......
kennn JAN 06, 01:50 PM
Yarmouth, go over to 85SEnotchie's link on Fiero Chat. He is an artist skilled in Photoshop and has helped others in your situation. He did a beautiful stretch of an Archie's widebody for someone over there.

Ken

------------------
'88 Formula V6
'88 GT TPI V8

Yarmouth Fiero JAN 06, 02:37 PM
Thanks for the heads up Ken. I'll check it out.

Graham

Edit to add: Just picked up a blown Gen III engine to use for mocking up my engine bay. I'll also use the cold weather as an excuse to sit down and measure and model the engine in 3D since I've had little luck finding a suitable model online.

[This message has been edited by Yarmouth Fiero (edited 01-06-2015).]

Bloozberry JAN 06, 09:19 PM
Uhhh... by "blown", I suspect you mean "junked" rather than "with supercharger" right?
Yarmouth Fiero JAN 07, 07:27 AM
Yes, I mean this........



as opposed to this........

Bloozberry JAN 07, 08:12 AM
Rats.
Yarmouth Fiero JAN 18, 06:51 PM
Taking a little breather from the engine / gearbox work, I decided to put some thought into the rear suspension again. Having a basic arrangement for the new engine cradle, I have begun working on the rear control arms. I am going to build my own control arms to suit the wide track of my project. As well, I want to try and incorporate the bumpsteer correction, similar to what is on the market currently. Having read through archived threads on the topic for reference, I have attemped to get the control arm at the desired position at ride height and keep the bump steer linkage in the same plane as the control arm with the outer end linkage in the same line as the ball joint. Here are a few images of the arrangement. I have yet to confirm the kinematics of the linkages so it's likely going to take some tweeking yet.













Edit to add last image

[This message has been edited by Yarmouth Fiero (edited 01-18-2015).]