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My single s480 top mount build. Dyno Updates pg. 3
Well it's been a long time coming and we're at the point now where I feel comfortable posting up some of the pics and making a little thread for it. It's been 10 months in the making so far and since it's a side project it often gets the back burner in favor of customer cars and the shop race cars. Long story short I got picked up for some duty in Japan and I didn't have a place to put my car so I dropped it off at the shop of my most trusted friends and basically gave it to them to have their way with it while I'm in Japan. They are very famous in other communities but as they are not a forum sponsor here I will leave that out for the time being. They recently hired the guy who did all of the fab work on DanZ's rear mount c5 and he is helping them to finish up the last little bits that weren't done already. I took some leave to the states last November and that's when we planned out the general setup, the piping routing and talked about hp goals. The car is a 2005 that I have done the 06'+ diff conversion on after we blew out the stock diff.
It started life as a mostly stock LS2 with a LG cam kit, LG super pro longtubes/3" catted x-pipe, FAST 102, Vararam, Powerbond UDP, ls7 maf and modded z06 mufflers which when tuned on HP tuners made 449whp/438wtq.
We decided on the components and went to work. The general idea is that it will be a stock engine car where we work out the bugs until I can come up on some extra funds for a forged bottom end. The idea is that I want to ensure we keep it a streetcar (I've been down the racecar rabbit hole before) so despite the fact that I want a 100% streetcar I ditched the A/C. The A/C compressor was blown already from a bent pulley when my stock balancer failed and caused the belt to get wrapped around my a/c compressor and water pump pulleys. So it never really gets crazy hot in WA state anyway and the roof would be off on nice days so I opted to pull out the A/C in the end. I think that we could have kept it and I might still put it back on later but as of right now I don't really care haha.
Next we started on the custom turbo manifolds and crossover. As mentioned before I decided on using a billet S480. Couple of reasons for this: 1. It was laying around the shop from a past project. 2. Should make good power. 3. This is not the billet Forced Inductions S480 that everyone knows and hears about this was the Borg Warner direct unit that comes with a smaller turbine wheel and a t4 housing. Before people get all up in arms about backpressure and restricting turbine wheel and housing let me remind you this is a street car I want to spool this thing early and draw 11's down the highway, that's it. The turbo was available and it fit my goals so that's what we're using. We will be controlling boost with a Tial 60mm wastegate as close to the turbine inlet as we could fit it.
Next up was the intercooler, we ordered most of all the parts we would need from Vibrant Performance and we used the normal 24x12x4 core and hand rolled the endtanks for it. You can see in the pictures that we welded the endtanks inside and out for double strength in case we decide to crank the boost later.
Because of where we had to put the turbo this required a radiator relocation as well as many other things so we modified the water pump housing and also built a custom radiator to fit that stood up behind the intercooler.
Next was the charge piping, and downpipe. We had use a lot of 4" round to 4" oval transitions from Vibrant and pie cut the bejesus out of it but we got it down and into a Y where it splits under the car into two 3" pipes for ground clearance purposes.
That brings us to where we are now. We just finished up the custom radiator shroud/fan combo, and the turbo intake where we will put a large filter on it and took all the hotside parts back off to send out to get ceramic coated. The ceramic coating will help keep some of the heat down (thankfully as this is a tight package) as well as help with spool on the turbo. Hopefully we get the last little parts in and the stuff back from coating soon as I'm ready to wrap this step up and move on to the other stuff. In the mean time we put in 1000cc grams injectors, Walbro 450 fuel pump, boost a pump and the clutch/clutch hydraulics and stuff. We are getting close and I'm getting excited.
Last edited by narfdanarf; 10-14-2014 at 05:43 PM.
That is some very nice fab work! What is your goal with the build? I don't get the "draw" 11's down the highway? 11 psi? 11's in the 1/4? Sorry, can you explain? Thanks and good luck with the build.
Yes all of the hot parts pictured above are being sent out for coating. I do not like the look of wrap so that's a last resort. I hope the coating works pretty well and we will use some of the large reflective heat shields in strategic places if we need them.
Good job on something quite unique!
Oh, and excellent craftsmanship on the build.
I am curious if you could not have done a smaller intercooler since the flow for the top 1/2 is going to be nill. Or does the extra aluminum soak up some heat and also helps slow down the flow compared to a smaller core that this is actually beneficial without full frontage air flow ???
Enjoy the build and I wish you many new tires needed in the future!
08-17-2014, 02:43 AM
My single s480 top mount build. Dyno Updates pg. 3
