Turbo Build Article Part 2
Project Boost Part II
In the previous issue we went through the removal and disassembly oft he engine and mentioned a bit about how much wear the engine had. Considering that it was an 11:1 compression daily driven/weekend track car, the wear was fairly minimal.
The FSR spec CP pistons arrived, delivered by Tom at Camp1320. FSR has tested many different piston combinations and companies and found these to be the best quality. For this application we will be running an 8.8:1 compression ration along with matching CP rings.
We are re-using the Crower rods from the previous build as they are in excellent condition. FSR will re-polish the crank and replace all the bearings to essentially renew the entire motor. The stock crank is very strong and has been known to withstand everything but sustained high RPM running. The Darton sleeved block has allowed FSR to run a big bore without worry.
For the top end, FSR will be running a stock head that’s lightly ported, and a completely stock valvetrain along with custom FSR Turbo cams. This early head has pretty good ports and a valvetrain that withstands (not without noise) upwards of 8000 rpm. The cams, adjustable cam sprockets and tuning will allow us to make power up high, and the design of the turbo equipment will make the power tractable.
As far as fabrication goes, FSR is currently working on the custom intake manifold using a FSR short runner big plenum design. Each piece is hand constructed out of 6061 Aircraft grade aluminum and hand TIG’d together. They have tested over 30 different designs and use that knowledge to custom build each manifold to compliment each specific engines specs.
The Electromotive TEC3r stand alone computer has also arrived and will give us the ability to fine tune the engine. The stock Saturn computer tends to fight every performance enhancing modification you add to the car so for the best results, a full stand alone computer is essential. Luckily FSR has had plenty of experience installing and tuning the TEC3r.
In the next installment we will go further into the engine building process as well as show more fabrication pictures of the finished intake and the start of the exhaust manifold. As usual, the growing gallery of this build can be found at www.SpeedSyndicate.net on my profile page.
This article was written by Q. President of Speed Syndicate Racing.
This article was used with the friendly permission of Q.
Article released by Dimi on 03.08.2008 23:10:29
