L67

[chargedvp3.8]

What will I need to possibly run a 9 with a L67 I’m very determined to get there somehow

 

[Immortality]

A 2nd L67?

Work out the weight of your car, then go and find an online calculator and work out how much power you will need to run a 9 second pass and then see if there are any L67's out there making that much power.

An L67 could probably do it but probably not in a Commodore when you consider the weight.

 

[_R_J_K_]

A turbo and deep pockets.

 

[chargedvp3.8]

A 2nd L67?

Work out the weight of your car, then go and find an online calculator and work out how much power you will need to run a 9 second pass and then see if there are any L67's out there making that much power.

An L67 could probably do it but probably not in a Commodore when you consider the weight.

What’s the calculation method

 

[MrBags]

This is one online calculator. I put 3200lb as guess on the weight though.

 

[Immortality]

What’s the calculation method

Search google for 1/4 mile calculators.

Moroso do a good manual slide calculator, not sure if they do an online one.

 

[Deuce]

Keep in mind that these calculators assume good suspension set up and good launch characteristics.

Dropping weight is easily your biggest advantage at this power level.

 

[vc commodore]

Strip the car out, using light weight panels and windows....Only have a single seat (probably out of alloy), only the wiring required to run the motor/gearbox combo....No lights at all....

Do research on the lightest wheels and make sure they're un balanced when tyres are fitted (excess wheel weights)...

Then start on the motor/gearbox/diff mods in preparation for those figures

 

[boingk]

Use an early ute or sedan - the VN to VS series are the lighter vehicles by far. The utes use a solid rear axle which is easier to deal with on a budget.

Drop weight by removing trim such as carpet and sound deadening. This will help, even if only a small bit.

Start from scratch and make as much power from the engine as you dare. You certainly can throw in a camshaft and a GT45 ebay turbo which will net you 600hp... if you tune it right!

The secret for most stock-block turbo build is using a tune which stops massive torque production through the midrange - think about it, torque breaks rods yeah? Lots of torque at low to mid RPM (2500 - 3500) means that torque is acting on the rods over a relatively larger period of time than say at 5000+. So pulling timing under 4500rpm is usually part of the equation to try and keep a flat torque curve.

Here's Richard Holdner with a verified 600 horse 3800 at only 1 bar of boost.

[youtube]

[/youtube]

 

[Immortality]

I love those video's, very realistic.