Ariel Atom with Hahn super20G turbo conversion
05-17-2008, 12:19 AM
#1
Member
Thread Starter
Join Date: 02-28-07
Location: Portland, OR
Posts: 334
Likes: 0
Received 0 Likes
on
0 Posts
Ariel Atom with Hahn super20G turbo conversion
Bill suggested I make a separate post about this so here it is. I'm about a week away from finishing my super20G conversion for the LSJ in an Ariel Atom. A bunch of former Brammo Ariel Atom engineers at Unique Fabricating in Oregon are finishing my build. They race cobalts too so I'd recommend them to you guys.
Originally it was a 300hp supercharged LSJ but unfortunately due to poor supercharger cooling it would heat soak pretty quickly on the track and loose a ton of power. So being half crazy already I decided to turbocharge it. Then decided to go a little crazy and turbocharge with with high compression, race gas and methanol injection. Then somewhere down the line I lost all concept of reality and did quite a bit more upgrades than planned but oh well
Thanks to Bill Hahn for helping me out and putting together a custom kit pretty quickly for me. He's a good guy!
Here are the list of most of the upgrades (I think):
Engine:
* Crower rods
* Arias custom pistons 10:1
* upgraded valves and ferrea valve springs
* cometic gasket
* ARP head studs
* balance shaft elimination kit
Turbo
* Hahn intake manifold.
* Hahn Racecraft turbo kit super 20G with custom exhaust manifold
* TTS intercooler build just for the Atom
* heat dispersant coating added to intercooler
Methanol injection
* Perrin Performance wi kit. plan to run 49%51% meth/ water
* custom stainless 2 gallon tank
Clutch
* Exedy hyper single kit.
ECU
* I have a stock cobalt ECU working with HP tuners.
Fuel System
* Walbro GSS342 high pressure fuel pump
* return flow system with aeromotive fuel regulator and filter
* 71 lbs injectors
Paddle shifter
* www.mastershift.com (works with the cobalt transmission)
Exhaust
* 3" custom with edelbrock repackable muffler
Here are some random pics:
Originally it was a 300hp supercharged LSJ but unfortunately due to poor supercharger cooling it would heat soak pretty quickly on the track and loose a ton of power. So being half crazy already I decided to turbocharge it. Then decided to go a little crazy and turbocharge with with high compression, race gas and methanol injection. Then somewhere down the line I lost all concept of reality and did quite a bit more upgrades than planned but oh well
Thanks to Bill Hahn for helping me out and putting together a custom kit pretty quickly for me. He's a good guy!
Here are the list of most of the upgrades (I think):
Engine:
* Crower rods
* Arias custom pistons 10:1
* upgraded valves and ferrea valve springs
* cometic gasket
* ARP head studs
* balance shaft elimination kit
Turbo
* Hahn intake manifold.
* Hahn Racecraft turbo kit super 20G with custom exhaust manifold
* TTS intercooler build just for the Atom
* heat dispersant coating added to intercooler
Methanol injection
* Perrin Performance wi kit. plan to run 49%51% meth/ water
* custom stainless 2 gallon tank
Clutch
* Exedy hyper single kit.
ECU
* I have a stock cobalt ECU working with HP tuners.
Fuel System
* Walbro GSS342 high pressure fuel pump
* return flow system with aeromotive fuel regulator and filter
* 71 lbs injectors
Paddle shifter
* www.mastershift.com (works with the cobalt transmission)
Exhaust
* 3" custom with edelbrock repackable muffler
Here are some random pics:
Last edited by bolus; 05-17-2008 at 01:30 AM.
05-17-2008, 01:15 AM
#10
Senior Member
Join Date: 04-03-06
Location: Mesa, AZ
Posts: 7,571
Likes: 0
Received 0 Likes
on
0 Posts
Hey! Those rods look familiar! 
Dude, if you built the motor, why didn't you go with the GT35R kit? That would be stupidly insane. 600 whp @ 1300 lbs!?!? OMFG IT DEFYS PHYSICS!!!!
Are you using the stock cams?
Dude, if you built the motor, why didn't you go with the GT35R kit? That would be stupidly insane. 600 whp @ 1300 lbs!?!? OMFG IT DEFYS PHYSICS!!!!
Are you using the stock cams?
05-17-2008, 01:26 AM
#13
Member
Thread Starter
Join Date: 02-28-07
Location: Portland, OR
Posts: 334
Likes: 0
Received 0 Likes
on
0 Posts
Wanted to minimize turbo tag on such a light car. It is hard enough to handle as it is. Plus I should get pretty close to 800hp/ton. that should be enough
Stock cams
05-17-2008, 01:42 AM
#17
Member
Thread Starter
Join Date: 02-28-07
Location: Portland, OR
Posts: 334
Likes: 0
Received 0 Likes
on
0 Posts
05-17-2008, 10:09 AM
#23
Senior Member
Join Date: 04-11-04
Location: patterson, ca
Posts: 2,175
Likes: 0
Received 0 Likes
on
0 Posts
