Plavan's 818R Build Thread

[C.Plavan]

The octane depends on the track. There is usally 100 and 110 or 112.

No need to go to 400 HP. That would put me in Super Unlimited. Then there is that transmission thing.

[longislandwrx]

bQXUrIJl.jpg

never too late to scrap it all and buy a Corvette!

get ready for the powah!

[C.Plavan]

I will never drive a Corvette since I'm not have/having a mid life crisis, thick gold chain, Hawaiian Shirt, and not bald (yet)........ haha Porsche's and Corvette's don't get along.

I got my custom exhaust back from getting ceramic coated. I went with the dark ceramic like my headers etc. Its good to 1600 degrees (500 more degree's than the silver). Overkill maybe.

I built this off an Invidia Divorced Bellmouth pipe I had. I sent the other exhaust back since it was not a bellmouth. I had to make a slight kink in it to clear the wing mount down bars. It will go straight out the back like the others.

[Brando]

I will need 2 race tunes, one for ST2 (around 270HP) class and one for ST1 (around 360HP) class. They are both HP/weight classes. That way, I can just pick who I want to race with if one class has a bigger field for tire contingencies.

http://thefactoryfiveforum.com/showt...l=1#post165480
Didn't we figure out a few months back ST1 would be 405HP for 2200lb?

HNY bro

[C.Plavan]

http://thefactoryfiveforum.com/showt...l=1#post165480
Didn't we figure out a few months back ST1 would be 405HP for 2200lb?

HNY bro

Yes, but my car is not 2200 pounds with me in it. ST2 will have more cars it looks like. I will have another look at it.

[C.Plavan]

I looked at it again- I figured out why I chose 360HP- I figured that I would need bigger tires than the 245 limit. Once you go to bigger tires (250 to 275) the factor is +.03 not +.07 like the 245 or smaller tires. If I run the same tires I could have 390hp @2200 pounds. So I might as well go 390 for the ST1 tune .

The ST1 calculation on that other link is off. That's not what the NASA excel calc shows when I enter the same numbers. (or Calc is off after using it a few times- Paper is better)

[C.Plavan]

I finished installing the Fire System. Once I finish the Fuel Cell Firewall, I can plug in the last spray nozzle. 6 total nozzles in the 4.0L Spa kit.



Passenger side pulls-


Passenger Fuel rail/Turbo area nozzle. (I have 3 in engine area)


Center


Driver coverage & Driver Pull-
Lower waist/legs on left, torso/waist on right


Now on to making that Firewall.

[C.Plavan]

Firewall sides are done. Now on to the top.

[Scargo]

Looks good. Looking forward to seeing it finished. How is it filled?

[C.Plavan]

Looks good. Looking forward to seeing it finished. How is it filled?

Thanks.

I already have made a 1/2" lip around the top. I also made the aluminum tighter on the sides than in the picture I posted. I will rivet a top on and have a little hatch on a hinge to flip up to fill.
Hose or funnel/jug. With the side rollbar, you get a workout filling with jugs. Most of the time I just drive over to the pump and fill.

Later on, I plan on being able to fill it from the outside passenger fender. I'll deal with that later since I will need a different fill plate and quick fill female port.

[C.Plavan]

Almost done. I'm not liking the shiny hinge for that fueling door. I'm going to order an aluminum one from Mcmaster Carr.

Gear shift is in 5th, so there is plenty of room. I plan on adding some SFI padding on the side and top edge for added safety.

[Scargo]

Thanks for sharing (and paving the way). I'm liking it.
I will be doing similarly. Sloshy buddy sitting next to me.

[C.Plavan]

Thanks- Its turning out better than I hoped.

I got to mock up the rear exhaust mesh with my $4 trim ring. I still need to paint the ring with high temp paint, then rivet (with rivet washers on back). I also need to razor the gobs of silicon off also.

[Frank818]

Ebay?

[C.Plavan]

I spoke with the Yimi Sport Tuning today. The soonest I can get the car there is Feb 16th. I was hoping it was sooner, but work has been getting in the way. I hope there is a cancellation before then that I can work with. I wanted to test a couple more times before the first race.

I have to see if Blouch offers a 10 or 12 psi wastegate to bolt on to the turbo. He says with the stock wastegate on the DOM 1.5 he cannot get under 300hp (I need around 270-275hp for ST2 class tune). I never thought I would be trying to shave HP off

For the ST1 tune he said with my 2.5L, 272 cams, 110 octane sky is the limit . Unfortunately, I only need 390-400hp depending on the weight.

Stay tuned (no pun intended)

[C.Plavan]

I painted my exhaust trim ring ceramic black and mounted it today to the mesh. I also reinstalled the exhaust. Looks Great for $4!

[C.Plavan]

Long time, no update:

I finally had time to finish the Fuel Cell enclosure. It's all riveted up with its door and vent. I ran the level sender wires also. I just need to drill another hole in the dash for the fuel gauge and install that.





I need to get some flat SFI padding and put it on the drivers side. I might cover the top in vinyl to minimize glare.

[Frank818]

Really nice looking finish, well built.
You're not hopping in your gf for a ride though, but it isn't meant for that!! lolll

[C.Plavan]

3rd brake light install (LED)

[Hindsight]

Hey Chad, how do you like the accelerator pedal position now that you've had a chance to race with it? It looks like it's about a half inch or an inch forward of the clutch/brake pedal.... is that about right? Do you find you can heel-toe well with it? If you moved it now, would you move it more forward or more rearward?

Thanks

[C.Plavan]

Hey Chad, how do you like the accelerator pedal position now that you've had a chance to race with it? It looks like it's about a half inch or an inch forward of the clutch/brake pedal.... is that about right? Do you find you can heel-toe well with it? If you moved it now, would you move it more forward or more rearward?

Thanks

It seems pretty good. If you watched the video of the shakedown test at the race track, you can see me rolling and jabbing my foot to rev match. I did not feel a need to change it after the test.

https://www.youtube.com/watch?v=DZwXqS2ljwI

[wallace18]

Beautiful job! You should be proud.

[C.Plavan]

Thanks!

Winching it up for the Dyno/Tuner tomorrow. 3 hour drive one way.......

[GUNS]

I want your trailer....

[C.Plavan]

I want your trailer....

I hear ya. I had a POS trailer for 10 years. I had this custom built 3 years ago (22ft box with v nose)..... Why did I put up with the POS trailer for sooo long! A/C, Insulated (Sleep at track), Cot, Microwave, coffee maker, outdoor BBQ, Generator, TV, DVD, cabinets, wireless remote winch, in floor spare tire storage. I still want to add an awning.

[C.Plavan]

They are starting to do their Magic.
http://imgur.com/d4s6pKN

[Pearldrummer7]

Oh man. This is so awesome. You must be beyond excited!

[Scargo]

Yes. Dyno time! Sticker tires, too. I'm so far behind.
I see my buddy with a rig like yours. Has a remote control and doesn't need my help (for that).
Me: I ask for guidance, if anyone's around to help get me onto the trailer straight. Sometimes they're not worth the asking (if you know what I mean).
But I get to show off my car coming and going...

[Frank818]

Are we viewing a live 818 dyno

[Hindsight]

Can't.... quite..... read..... numbers.....

[Kurk818]

Curious to see the final numbers...

[C.Plavan]

Nothing too exciting to report since I'm not going for all out power. I'm trying to fit within HP/weight rules of certain race classes. We ended up just doing one tune, since I would be racing ST2 this year- This turbo is really for ST1 (Easy 400hp limit I needed). Regardless, I should of bought a smaller turbo! lol Have you ever heard anyone say that? At first it was making way too much HP for me to be legal in ST2. I really need a 18G for an ideal setup for ST2 class. That will come later.

I bought a 12psi wastegate actuator as it was suggested to lower the HP of the DOM 1.5- Even with that lower actuator, the minimal number he could get was 317hp with pulling timing etc (pump 91). I needed to be at 280 to 285hp with the current 818R weight to be class legal.

This is where they came up with an ingenious solution which they had never done before. Not ideal, but it will get me through the race in two weeks, or until I buy a smaller turbo. I was around 280hp at 6k rpm, then from 6K to 7k rpm it would climb to 317HP with all the detuning. Luckily, I have an electronic throttle. After some brainstorming, we tried lowering the throttle pedal map to cut throttle position after 6k RPM. After about 6 dyno runs it was perfect. So basically, I will have the throttle floored and once it gets to 6k RPM, the ecu slowly backs the throttle reading down to 53% throttle position. So from 6k to 7k hp is flat ~280. I'll be shifting normally at 6500. Its pretty seamless, not ideal- but there are some pro's and con's. Torq is pretty flat from 3.5K through 6k (257 TQ)

So that is it in a nutshell. Its very interesting trying to cut power instead of adding it. I will eventually get a smaller 18G, but my wife has been giving me the Stink Eye for how much I have been spending recently. I have noticed alot of "Revenge" spending on Lululemon stuff......

Side note- Even with Wayne's coolant mod, I had air bubbles in the system that I thought I got all out. They showed me the correct way to burp the system (with this http://www.amazon.com/Lisle-24680-Sp...coolant+filler) I know someone posted it before, but I would not burp the system without one. Now my temps are around 15-20 degrees cooler.

Detuned graph.

[xxguitarist]

On the up side, you probably have one of the best area-under-the-curve plots allowed by the class, that can be quite helpful for skipping a short down & right back up shift.

[D Clary]

That is the funnel I use. I tried vacuum but it did not fill totally. I just filled from the degass tank until it came out the radiator fill, capped the radiator and kept filling. I was very patient but I am sure it is full, took almost 4 gallons I think with awic

[metalmaker12]

That is the funnel I use. I tried vacuum but it did not fill totally. I just filled from the degass tank until it came out the radiator fill, capped the radiator and kept filling. I was very patient but I am sure it is full, took almost 4 gallons I think with awic

Same here, the funnel is the only way to get it right.

[Wayne Presley]

Chad, did you think of running more boost down low to make the 280 from 3500-6500 rpm? It would stay at the ST2 power at every shift.

[Bob_n_Cincy]

I did a comparison torque chart of my dyno run compared to Chad's.
My 04 stock 2.5L FXT engine w/TDO4 turbo / stock tmic / cated exhaust /stock tune.
As we are running similar Boost levels. Why is Chad's torque higher?

EDIT: EODTech87 in the next post corrected me. The line I charted for Chad's boost, was really his Air/Fuel Ratio.


chads comparison.jpg

[EODTech87]

It looks to me like you used the chart he posted for boost. When in fact that lower line is his Air/Fuel Ratio.

[Wayne Presley]

Bob, your turbo runs out of airflow on top and Chad's does not. The torque fall off on top is a combo of cams and CFM of your TD04

Chad, you can just put a smaller turbine housing on the turbo you have and get it to spool up faster. Then use the boost control solenoid to run more boost down low and taper it off to the WG spring up high. You could end up with 280 HP from 3500-6500 and still be within the rules

[C.Plavan]

Bob, your turbo runs out of airflow on top and Chad's does not. The torque fall off on top is a combo of cams and CFM of your TD04

Chad, you can just put a smaller turbine housing on the turbo you have and get it to spool up faster. Then use the boost control solenoid to run more boost down low and taper it off to the WG spring up high. You could end up with 280 HP from 3500-6500 and still be within the rules

That sounds like an awesome plan.