junk c5

I guess its time to put up a build thread with all the recent front mount turbo builds. Its a 1999 C5 vert that has had a stout h/c/i combo and a rear mount 70mm setup.

Motor is a 9:1 iron AES 390 fitted with coated diamond pistons, callies crankshaft, callies rods, and a full array of ARP bolts. The heads are ported 317's which were setup by AES for the baby cam which was spec'ed by Patrick G. Its 222/222 .602/.602 117 LS.

Trans is the factory 4L60E which was completely gone thru by a local trans guy who has plenty of experience building race transmissions. It also has 2 trans coolers and a DEEP pan which holds 3 1/2 extra quarts of tranny fluid. The trans is mated with a custom spec'ed converter from Lane at PTC. 3.42 (3) rib z06 diff

Fuel system has the factory intank pump with a bosch 044 external pump. Fuel rails are aftermarket with a nice magna fuel boost referenced regulator affixed to it. 80lb siemens injectors and a return style fuel system upgrade which keeps the pressure in check.

Wheels are CCW'S with a meaty m/t drag radial. I believe they're 295-50-16.

Its got a few misc upgrades throughout the car like a MSD 2 step launch control box.


Future upgrades are rear brakes, a leash electronic boost controller and an upgraded fuel system for E85 so I can make some real power. The current setup made 550 rwhp at 10lbs of boost and 12 degrees of timing. Pretty conservative on 93 octane, NO METH.......

Turbo is a billet T4 frame B/W S480 with a .96 exhaust housing and a race cover. Its paired with a 50mm tial w/g and bov. Plus a huge treadstone 1300 hp a/a.
Pics after dinner.... lol.

junk c5

junk c5

junk c5

The car has a trunk mount dual nozzel devils own meth kit with a progressive controller but its not in use and about to come off.

TastyBacon

Looks nice--lots of room up front! Details on the radiator/fan setup?

maznfox

also interested following thanks

ajrothm

Excellent job! I'd love to see more pics of the turbo kit! It looks very well done.. S480 is a killer unit. You can go 8s for sure on your setup.

junk c5

I went 8.80's in my blow thru 86 mustang on PUMPGAS & meth with a t6 unit.. This unit is a t4 frame...

junk c5

It's a Big End chevy aluminum radiator with duel 1600cc Spal fans. I could get the radiator measurements but it's the biggest unit that would fit. I cut out the factory radiator support and fabbed up a new unit 1 inch lower

Anti_Venom99

Sweet setup man! My turbo is almost done as well. I opted to keep a/c tho... just couldn't get rid of it 😵

junk c5

Thx... I debated the a/c for a good long while. It didn't work very well and it's not my DD. It's more like a treat for me just to drive it. I only log about 2k miles a year so it spends most of its time in the garage. Our builds share some similarities. I love how your exhaust came out, but I am afraid it would be too loud for me. The exhaust on my race car is like that and I couldn't imagine driving it around town. LOL

junk c5

junk c5

I will grab a pic of how the crossover tube joins into the passenger side header when I take the exhaust off again

junk c5

I was able to squeeze a trans cooler in front of the fan under the hood and another on the passenger side under the headlight.

Anti_Venom99

Understandable. Mine isn't my dd either but I will be driving it a lot and I live in the desert lol. Looks good man, can't wait to see how she turns out!

junk c5

This should help keep the under hood/ coolant temps friendly ..

Anti_Venom99

Lol nice! I am planning on getting the full set from them! How was the install?

junk c5

Pretty straight forward. The louvers are well made and metal. The kit comes with a template and rivets. All you need is a 1/8th in drill bit, 3/8 in drill bit, painters tape and a 4 1/2 in grinder. Plus a tape measure , straight eyes and a 12 PK of beer. Get a can of flat black spray paint too. You'll know why after you test fit the louvers. You can see the white of the underside of the hood thru the louvers if you look at the right angle.

Anti_Venom99

Nice! I've got all of that lol.

junk c5

Well the results for the hood louver are kind of in. It's a cool 65° night and it seems like the engine temperature has dropped about 10°. My initial test drive was an 80° day. I didn't really get an opportunity to roll into the throttle hard because the wife was in the car with me and she doesn't appreciate boost as much as I do. LOL

The car generally ran around 220 with some temps as high as 230 after I rolled into it really hard. I'm debating ordering the side louvers to alleviate more of the heat from under the hood. This combination definitely generates some heat. The louvers are metal and they are pretty warm to the touch so I know some of the heat is going through them. I might also see if my tuner can command my fans to stay on instead of turning off at the standard 35 mph.

I know 220 and 230 isn't the end of the world, but I am accustomed to this car running closer to 190 or 200 on hot days.