Turbo lag

chriskay · Post by **chriskay** » Sat Nov 29, 2003 6:24 pm

I've heard it said that a turbo with auto. box doesn't suffer from turbo lag. I can't notice any lag on mine, when flooring the throttle so the turbo gauge goes to the end of the orange. Can anyone explain?
Chris

MatBat · Post by **MatBat** » Sat Nov 29, 2003 6:43 pm

My auto Turbo (Subaru, not Volvo) was auto, and Lag free.
My theory is that Auto's change gear quicker, and at higher revs, so the turbo doesn't have time to slow down.

volvofox · Post by **volvofox** » Sat Nov 29, 2003 9:57 pm

I hate turbo cars WHITOUT turbo lag. Their just like bigger engine's. you don't know its there. I like the blow in the back, a modern turbo car lacks.

JPF

MatBat · Post by **MatBat** » Sat Nov 29, 2003 10:03 pm

Well, um the modern turbo's have that 'blow in the back' too, they just don't leave you powerless if you let the revs drop below 3000rpm. Driving a turbo is very different to driving a N/A, with a turbo, you need to be far more rpm conscious.
The only turbo's that don't give you a shove are things like the LPT (Low pressure Turbo's) such as in some Saabs etc.

I do understand what you mean though, I loved having 280BHP on tap with 4wd to boot!

but I actually swapped my Subaru for my N/A 480

volvofox · Post by **volvofox** » Sat Nov 29, 2003 10:08 pm

this is not the same. I hate modern turbo's.
any way I drive "the italian way. Ever heard of dropping some gears back to have whatever rev you like(and so what ever turbokick) in whatever speed ?

Any way, I steer like a ag. machine op. I steer with one hand only and keep the gearshiftlever loose in the hand at all times, so i shift a lot...

Luck
JPF

MatBat · Post by **MatBat** » Sat Nov 29, 2003 10:09 pm

Okay then.

martinholmesuk · Post by **martinholmesuk** » Sun Nov 30, 2003 12:45 pm

Turbo what...?

When I put my food down the car starts turbo and only stops when i take my foot off.

dragon · Post by **dragon** » Sun Nov 30, 2003 10:29 pm

Yer lucky then!

My car nearly stalls if you try to race off the lights, the turbo doesn't kick in for a good couple of seconds... Only way to avoid the near stall, is to blip the accelerator just before you try to floor it, or keep the revs above 2500 beforehand, which of course gives the game away, especially in my car

Hopefully this will be fixed on my car soon though by having new acellerator pedal switches etc etc - oh and that MegaSquirt doobry

chriskay · Post by **chriskay** » Mon Dec 01, 2003 11:06 am

Quote:Hopefully this will be fixed on my car soon though by having new acellerator pedal switches etc etc - oh and that MegaSquirt doobry

Dragon, please explain; what switches & doobry? Mine's like Martin's; turbo kicks in immediately. 0-60 is just under 9 seconds. Is this typical?
Chris

chriskay · Post by **chriskay** » Mon Dec 01, 2003 11:06 am

Quote:Hopefully this will be fixed on my car soon though by having new acellerator pedal switches etc etc - oh and that MegaSquirt doobry

Dragon, please explain; what switches & doobry? Mine's like Martin's; turbo kicks in immediately. 0-60 is just under 9 seconds. Is this typical?
Chris

dragon · Post by **dragon** » Mon Dec 01, 2003 1:14 pm

Sorry, I was being slightly funny/ironic about calling megasquirt a doobry as if I wasn't sure what it was - I've been waiting a long time for it to arrive you see, but a little bird says we may be very close to MS day

As for the switch - I refer to the throttle switch, which may be faulty or dirty on my car, but this is getting replaced soon anyway, so fingers x'd this all adds up to no more lag

MatBat · Post by **MatBat** » Mon Dec 01, 2003 3:12 pm

Your car shouldn't be on the verge of stalling form the lights. Whilst it whon accelerate at its full rate until the turbo cuts in, in should still perform much the same as a N/A 480. Perhaps you need more fuel pressure.

martinholmesuk · Post by **martinholmesuk** » Mon Dec 01, 2003 4:44 pm

Mat,

It's because of all his mods and stuff. Gaz is waiting for MS so then he will be OK to kill everyone at the lights

When we went to Alton Towers he was fighting hard to keep up with me. Soon he will be a dragon again

MatBat · Post by **MatBat** » Mon Dec 01, 2003 4:47 pm

I see, well young dragon, GET YOUR MEGASQUIRT!!!!
What mods have you done? Sound Xtreme!

martinholmesuk · Post by **martinholmesuk** » Mon Dec 01, 2003 4:54 pm

His had to wait because it's from America. This is his list.

DBS front strut brace added
DBS manual boost controller added
Bailey DV series dump valve fitted
K&N Panel Air Filter fitted
Powerflow stainless system added, later removed.
ASCAR stainless system added - new downpipes - 2.5" tapering to 3", 3" all the way back
Fox Evo 2 17" alloys added
New head, with DBS high lift cam and bigger valves etc
Head ported
Higher rate injectors from SAAB 2.0l turbo added
PI 40mm drop lowering springs fitted
Koni Yellow front shocks fitted

Look at his site, It's really good