Venom Cobra Build

[Modena]

holy smokes, that thing is quiet! Can't wait to see it go, and boy will it go.

[renovationinnov]

hey nathan just watched the video !!!! your making me jelious
well done to get to this stage hope to see more
ROB

[sevenohms]

I may have taken my frist real drive! Man these things are awesome!

[boxhead]

I hope you tightened the rear wheel nuts.

Either they are loose in the video or you have a bent wheel flange?

[sevenohms]

Originally Posted by boxhead

I hope you tightened the rear wheel nuts.

Either they are loose in the video or you have a bent wheel flange?

Maybe a bent wheel. They were cheap off ebay for rolling around the shed...

[sevenohms]

Update:

A quick update:

I have a 'notchy-ness' in the steering that is caused by the strange Z joint that the Jag Front end uses, probably caused by the angle being a bit large for that style of joint. Can't do anything about the angle so maybe I have to change the joint.

Found the cause to my ABS module not working. Dodgy soldering on my part, all fixed now.

A quick adjustment to the trans cable and the engine and trans came out of limp home mode! Whoo hoo!

Next I ran it up to speed on blocks, changed from first to third, then it started spluttering. A long stratch of the head, and try again, and look down to see the "traction control" light flashing... AH HA!

Consult the wiring diagram, found the wire to turn traction off. Try again and it ran with a beautiful bark! BAAAAARRRP!

So solve the steering issues, and its time for another 'test' drive. In a private property of course!

[Jaydee]

Nice going. Do most of the cobra kit allow you to build with the body of. The harrisons are permenant? Seems, so much easier. I'm trying to psych myself up to have the patience to build one. Good on you. I use to have a gyrocopter with a turbo without a muffler, I find it acts like a muffler. Do you have twin turbos? It's going to make a nice foot heater that close to the panel.
JD

[sevenohms]

Originally Posted by Jaydee

Nice going. Do most of the cobra kit allow you to build with the body of. The harrisons are permenant? Seems, so much easier. I'm trying to psych myself up to have the patience to build one. Good on you. I use to have a gyrocopter with a turbo without a muffler, I find it acts like a muffler. Do you have twin turbos? It's going to make a nice foot heater that close to the panel.
JD

No idea bout the other kits, but I thought most of them were body off.

I thought I was a bit mental with a turbo V8, but a turbo gyro takes the cake! hahaha

I'm probably taking the turbos off. I can't make them work vertically (they smoke excessively) and horizontally I can't make enough space to put them in a location that drains the oil back into the sump correctly.

[rpatton3]

As an unmechanical Yank, you guys are doing "rocket science."

I have enjoyed your discussions.

Russell

[Merv and Sharon]

That sounds like a pretty decent 'small block" you have Russell. Any pics?

[sevenohms]

Hi,

I wrote a big long reply and it disappeared! ARGH!

Basically, the turbos are mounted in a vertical direction for packaging reasons. This meant the oil doesn't drain into the outlet, but into the turbine housing. They were also running a pressure reduction plate, i believe it was 2psi plate. No filter, was going to do this later.

Vertical also has an issue with the turbo compressor outlet and the booster being in the same place. I'm concerned with heat soak into the MC, not impossible but not great.

To mount the turbo horizontally, it would need to be at sump level with the scavenging pump below the lowest point of the sump, and the car. So not great.

Thinking of two M90's or a single M112 superchargers to get me to 400kw.

Nathan

[rpatton3]

Slide Show for album :: Backdraft #874

Here is link to my noisy red car. All I did was write a check;I am jealous of you guys downunder!

[rpatton3]

Slide Show for album :: Backdraft #874

Here is a link to my noisy red car. All I did was write a check; you guys are doing R & D where nobody wrote you a recipe. I am jealous!

[Merv and Sharon]

Beautiful Backdraft and superb motor Russell. What capacity is it?

[1uzer]

I watched the short video of your car running with the turbos mounted like that. Nice layout by the way, and now i can see your predicament.

Can you make a video of a shed skid? i like shed skids, and so do the boys

I've made my own twin turbo kit to suit my cobra, with the turbos in the guards like that too (though flat). To do it I had to use very low profile air filters (hks mushroom filters) with one turbo slightly higher then the guard vent and the other quite low, due to brake booster and mc. i used the same turbos in the genTT kit. Their small exhaust housings REALLY helped make room.

I've got turbo heat bags / beanies over the exhaust housings, earls fireproof sleeve over the brake lines and thick shielding around mc and booster. All exhaust and inlet is wrapped. Oil is scavenged too.
Its tight, and hot, but persistence made it happen

Did you research any other twin kits before deciding on the turbos? genTT kits use visually smaller turbos and make the numbers with very low boost.
there's a set of install instructions on the net and that covers most relevant issues you could face.

also there is a company that has made vertically laid turbos possible, i think it's called aerocharger turbo systems.

I hope it becomes possible. Because they're a rare breed twin turbo cobras

[sevenohms]

Yeah, theres about 280mm between the wheels and the footwell, and the turbo's (T3T4) are about that length face to face. There are lots of turbos around, and the genTT kits use the same turbos i was going to use based on the flow calcs. The ones i bought for test fitment were 150 each. Figured at that price i could throw em away!

I'll see if the video holder/missus will let me do a shed skid! hahaha

Originally Posted by 1uzer

I watched the short video of your car running with the turbos mounted like that. Nice layout by the way, and now i can see your predicament.

Can you make a video of a shed skid? i like shed skids, and so do the boys

I've made my own twin turbo kit to suit my cobra, with the turbos in the guards like that too (though flat). To do it I had to use very low profile air filters (hks mushroom filters) with one turbo slightly higher then the guard vent and the other quite low, due to brake booster and mc. i used the same turbos in the genTT kit. Their small exhaust housings REALLY helped make room.

I've got turbo heat bags / beanies over the exhaust housings, earls fireproof sleeve over the brake lines and thick shielding around mc and booster. All exhaust and inlet is wrapped. Oil is scavenged too.
Its tight, and hot, but persistence made it happen

Did you research any other twin kits before deciding on the turbos? genTT kits use visually smaller turbos and make the numbers with very low boost.
there's a set of install instructions on the net and that covers most relevant issues you could face.

also there is a company that has made vertically laid turbos possible, i think it's called aerocharger turbo systems.

I hope it becomes possible. Because they're a rare breed twin turbo cobras

[sevenohms]

Aerocharger makes a turbo that can mounted vertical!

Originally Posted by 1uzer

I watched the short video of your car running with the turbos mounted like that. Nice layout by the way, and now i can see your predicament.

Can you make a video of a shed skid? i like shed skids, and so do the boys

I've made my own twin turbo kit to suit my cobra, with the turbos in the guards like that too (though flat). To do it I had to use very low profile air filters (hks mushroom filters) with one turbo slightly higher then the guard vent and the other quite low, due to brake booster and mc. i used the same turbos in the genTT kit. Their small exhaust housings REALLY helped make room.

I've got turbo heat bags / beanies over the exhaust housings, earls fireproof sleeve over the brake lines and thick shielding around mc and booster. All exhaust and inlet is wrapped. Oil is scavenged too.
Its tight, and hot, but persistence made it happen

Did you research any other twin kits before deciding on the turbos? genTT kits use visually smaller turbos and make the numbers with very low boost.
there's a set of install instructions on the net and that covers most relevant issues you could face.

also there is a company that has made vertically laid turbos possible, i think it's called aerocharger turbo systems.

I hope it becomes possible. Because they're a rare breed twin turbo cobras

[rpatton3]

When you guys downunder (I hope that is not offensive) please send, post or publish your stories.

There is a 5 liter FFR with twin turbochargers that runs low ten second 1/4 mile on YouTube.

It makes my 7 liter Roush look a lot less powerful.

[AC-460]

Why dont you supercharge it instead..... lot less heat... no room issues....Yella Terra kit looks good

[sevenohms]

Originally Posted by AC-460

Why dont you supercharge it instead..... lot less heat... no room issues....Yella Terra kit looks good

I think the Yella Terra kit makes the engine taller. I've space limited in height under the bonnet!

Plus I just like the sound of turbos!