Volvo 960 Tuning

"It is big and it is clever."

The 960 is the big daddy of the Volvo range. It offered unparalleled practical space and performance and has quite an avid following among our forum members.

We get asked quite a bit about making these more economical but this is a performance tuning article so we'll leave that discussion for our forum.

Get the handling sorted first. As they get old the bushings go soggy and suspension parts start to wear out.

Fit a strut brace to tighten this up and a rear anti roll bar. Coilovers are also good upgrades but don't drop the car too far as this can have an adverse effect on car performance and handling.

Turning our attention to the 960s engine we need to get a bit more power out of the top end.

Following our tips for tuning your 960 you will end up with a practical scorching hatch that will embarrass bigger cars.

Smaller engines do not provide much of a return in terms of power so start with a bigger engine. Engine swaps are a good option if you have a small engine size.

Volvo 960 Tuning modifications.

Tuning modifications.

These are the uprated upgrades are usually installed by our members, decide how far you want to go before you start.

Getting the correct grade of uprated mods for your planned usage of the car is essential. Stage 3 motor sport parts just don't work well on the road and will make the car undrivable.

Typical stage 1 mods often include: Remap, Suspension upgrade (drop 24mm - 43 mm.), Panel air filter, Alloy wheels, Lighter flywheel, Sports exhaust.

Typical stage 2 mods often include: Ported and polished head, Power/Sport clutch, high flow fuel injector, fuel pump upgrades, Fast road cam.

Typical stage 3 mods often include: Engine balancing, Competition cam, Internal engine upgrades (pistons/head/valves), Sports gearbox, Adding or upgrading forced induction (turbo/supercharger).

Peak power is all well and good but for a daily driven car you need a long torque band and perhaps extending the rev range.

In this article we shall give a brief overview to the best mods for your car, but we'd encourage you to spend some time on the site looking into the details of each type of performance mod.Fast road cams offer one of the biggest performance gains for your money as far as a solitary modifications goes on a NASP engine.

The exhaust & intake valve durations play a huge role in your cars power band, but be careful here, getting this wrong can upset the idle and make the car challenging to drive in traffic. You'd need to follow a camshaft upgrade with other mods and finish with a performance chip to fully realise your gains.

You will need to ensure that the engine is not starved of fuel so will need to look at the fuelling.

Frequently power losses, flat spots and erratic idling after modified upgrades are done can usually be traced to timing or fuel delivery issues. Uprating the injectors is another beneficial modification and will deliver sufficient fuel.

A fuel pump will only deliver a finite amount of fuel, so you may need to uprate this if your injectors are demanding more fuel.

Volvo 960 Intake and Exhaust.

Breathing mods are usually next up. Induction kits work well on turbo engines and larger engines but will not on there own make much of a difference power wise.

For the smaller 960 engines you should go with a sports panel air filter made from cotton. A sports catalyst will free up the exhausts breathing and allow you to explore the top end of the rev range. Do not go with the biggest exhaust you can find - the best for power gains are usually between 2 to 2.5 inches.

Your clutch can seriously let you down if it starts to slip and the standard clutches are only ever good for power gains of upto 50%.

Fit an uprated clutch to avoid power losses through the transmission. Remaps offer significant power gains on all turbo charged cars so if you have a T5 powered 960 this means you, just expect to spend a lot more on tyres over the year.

On NASP engines the benefits of a remap are doubtful, but will help unleash the potential if you have done a lot of other mods to your engine.

The largest power gains for NASP engines usually involve the addition of forced induction. Turbos are harder to add than supercharger and we have a big supported of supercharged Volvos in our forum who regularly puts in some pretty good quarter mile runs!

It is harder to map a NASP engine to run with an aftermarket turbo kit as the boost comes on exponentially with engine speed.

You'll also have a problem with detontation so see our adding a turbo article for more on this. Superchargers however will give a boost which is proportional to engine speed so is easier to map. Decreasing the engines compression ratio will allow you to add forced induction, water injection may also help prevent detonation.

Volvo 960 Wheel modifications.

Alloy wheel upgrades.

The benefits of alloy wheels include lowering your unsprung weight and better brake cooling. We can't go into too much detail here about tires but they are how the car puts the power down on the road so are a critical choice. directional tread pattern tires work well on 960, and make a big difference over budget tires. Large 960 alloy wheels can decrease performance. If you get big alloy wheels you will be changing your final drive ratio.

Due to this fact endeavour to keep the overall rolling diameter of the wheel your OEM settings. In all cases avoid going larger than 16 inches.

For more information on Tuning your car please join us in our friendly forum where you can discuss 960 options in more detail with our 960 owners. It would also be worth reading our unbiased Volvo tuning articles to get a full grasp of the benefits and drawbacks of each modification.

Please help us improve these tips by sending us your feedback in the comments box below.

We love to hear what our visitors have got up to and which mods work best for them on each model of car. Comments are used to improve the accuracy of these articles which are continually updated.

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Your Constructive comments on this article



2 Responses to “Tuning the 960”

  1. Steven says:

    Very good advice I got from the article on the 960 performance improvement.
    Just an advisory question I would like to ask. Which engine management system will work best on the 960 standard engine automatic. I am putting this in my 1967 B122s.
    Thanks

  2. ron fancher says:

    I am interested in the ideas here, i have seen some video’s on the performance of the 960 and i am very impressed and eager to do some upgrades. thanks ron



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