can you tell how much boost a car is running by looking on the boost guage and reving the car up?

 

no. really need to hold in 4th gear.

 

Doesn't need to be 4th gear...anything other than neutral will tell you.

 

so if i hold it at the revs the turbo cums in i should see the boost held on my gauge? but gota be moving

 

yep

 

foot to the floor in 3rd is normally easy way



while driving mate

 

the best way is to drive at 60 mph in 4th gear then floor the throttle

 

"Official" method.

- Accelerate up to 4th gear
- Pedal to the floor at 1500 rpm
- hit the brake at 3500 rpm, keep the throttle fully depressed though (not longer than 5 secs)
- read your gauge now
- let your brakes cool down

On my car (std actuator at the moment) it makes a huge difference, whether I'm in first, second, third or fourth gear. Don't know what it's like with an uprated actuator, though

 

Whats all this holding in 4th gear and putting on the brakes business??

As far as I'm aware thats a technique a tuner will use when road mapping to avoid flying down the road at 120mph whilst mapping?

Surely everyone hits full boost in all gears? What difference does it make what gear you're in .

Just drive along....put you foot down and see what the gauge goes round to

 

No way. 1st and 2nd gear go so fast that the turbo has no time to really spool up. 1st will not even spin the wheels properly because of larger turbo. 3rd gear is still spinning wheels, so the full boost will not really develop. 4th will show steady full boost no problem.

 

Must be different in a higher power car....I get full boost in 1st and 2nd and so on....deffo no wheel spin in 3rd!

 

It's the technique which has been used by Ford mechanics for the last 20 years.

 

spot on that is you wont make full boost in 1st and 2nd gear,4th is the best way to check

 

You're just not trying hard enough

 

Well mine boosts so hard i had to fit a DV so ner ner ner

 

i was also told that as you usually hold 4th gear longer it lets you see if the boost creeps up slightly higher in 4th. This is why peeps with standard ecus often hit the boost cut in 4th but not in any other gear

 

nice post safechav they got a bit carried away there mate didnt they lol

 

i had a biscuit boost the other day!

twas quite yummy,

 

And before u go, siggy police please