The Evolution of F-Prepared, Re-build Log.
Feb 19, 2018, 11:03 AM
#76
Evolving Member
Thread Starter
like I said I would love to test back to back, but everything we were doing was pointing us another route.
Zack
Last edited by wanabgts; Feb 19, 2018 at 12:08 PM.
Feb 27, 2018, 01:15 PM
#77
Evolving Member
Thread Starter
Well we have put about 30 man hours into the car since I last posted. Lots of progress in various areas. Firstly we got the intercooler ducting cut and installed, this was a huge engineering challenge but I am happy with how it turned out.
With the mechanicals basically sorted we finally got onto wiring, we had to come up with a plan of integration for the PDM and abs. We then got our system diagram sorted out, and got to wiring.
The engine is almost completely wired up in this picture, a PDM really does clean things up!
Lastly we rounded up about 2/3 of the ballast that we project we will need by the end of this season/build cycle. Here is about 350lb worth we are working on an underbody rack to hold. Most will go in place of where the other half of the fuel tank was.
T-minus 3 weeks till testing......
Zack
With the mechanicals basically sorted we finally got onto wiring, we had to come up with a plan of integration for the PDM and abs. We then got our system diagram sorted out, and got to wiring.
The engine is almost completely wired up in this picture, a PDM really does clean things up!
Lastly we rounded up about 2/3 of the ballast that we project we will need by the end of this season/build cycle. Here is about 350lb worth we are working on an underbody rack to hold. Most will go in place of where the other half of the fuel tank was.
T-minus 3 weeks till testing......
Zack
Feb 28, 2018, 07:30 AM
#79
Evolving Member
Thread Starter
This is not really a concern for a number of reasons.
1- This is normally a low pressure area anyway on a car that has front end rake, even if it now goes positive pressure it is likely to be a VERY small amount.
2- We only do around 85mph
3- MOST of the air on a evo or any other passenger car already comes out the bottom of the engine bay, the vent on the evo has no way of flowing the amount air being let into the engine bay.
4- We are not allowed to duct out the hood in prepared class, instead we chose to lower the cg of the intercooler from 12.5" down to 4.5" while also moving it inside the wheelbase of the car.
This has been brought up before when engineering this system, and my question is always this. Where do you think the air is going now? Even with the factory undertay it exits mostly by the firewall, which contributes to lift as well.
Good question!
Zack
1- This is normally a low pressure area anyway on a car that has front end rake, even if it now goes positive pressure it is likely to be a VERY small amount.
2- We only do around 85mph
3- MOST of the air on a evo or any other passenger car already comes out the bottom of the engine bay, the vent on the evo has no way of flowing the amount air being let into the engine bay.
4- We are not allowed to duct out the hood in prepared class, instead we chose to lower the cg of the intercooler from 12.5" down to 4.5" while also moving it inside the wheelbase of the car.
This has been brought up before when engineering this system, and my question is always this. Where do you think the air is going now? Even with the factory undertay it exits mostly by the firewall, which contributes to lift as well.
Good question!
Zack
Feb 28, 2018, 08:10 AM
#81
Evolving Member
Thread Starter
Half of the grill will be block for the intake, the other half will blow in on the exhaust and "hopefully" out the hood. Oil cooler side ducts will just be blocked as we currently do not run one.
Zack
Zack
Feb 28, 2018, 11:40 AM
#84
Evolving Member
Thread Starter
Mar 1, 2018, 03:49 PM
#85
Evolving Member
Thread Starter
Still chipping away on it this week. Finished fabricating the air box and intake system and got the engine harness pretty much wrapped up. Just have to finish the PDM and ABS harnesses and she will be ready for testing.
Zack
Zack
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wanabgts (Mar 6, 2018)
Mar 1, 2018, 09:01 PM
#88
Evolving Member
Thread Starter
Got the car slapped together today to see how much ballast we need, was happy we have gotten 100lbs total off the front of the car. Somewhere around 130 total this winter. Only things missing on this weight is a 24lb exhaust and fluids. This will really help out when we go toe-to-toe with xp, and we should be able to force the front/rear bias really far back if needed with our approximate 450lbs of weight.....
Its looking like we may actually make it to testing and crows if we can maintain the current pace of completion!
Zack
Its looking like we may actually make it to testing and crows if we can maintain the current pace of completion!
Zack
