Thread: Eliminate turbo lag

I was thinking the same thing awhile back.I was looking at an air to water intercooler aswell so I could run a ford rad and fans to get better performance.Just running electric fans makes a big difference as the engine winds up alot faster,I ran my defender without the fan once and the power was quite impressive. Pat

I like the idea of a small supercharger but the problem is where to mount the little bugger, it would fit nicely where the ac comp is if you lived way down south and could live without ac - or NZ.

In my opinion, you would be better off getting a really nice hybrid turbo, and exhasut manifold made. This would cost less, be far more simple and be, iwould say, just as effective.

There are so many difficulties in trying to do both. Also a supercharger takes quite a lot of power to run as well as the complications of 2 different pressured inlet tracts, and having to merge them.

Lancia did it on the Delta S4 in the 1980's running a supercharger and a turbo on the 1.7litre 4cys to great effect, and I believe Nissan have also (succesfully) tried it recently.

I have played around with forced induction and fancy turbo's a lot and also with Charge cooling. If you are going to run a charge cooler you need a completely seperate water system. I have had radiators made and used electic water pumps to do this, but charge coolers are expensive. We had Lotus Sport 350 ones modified. You cannot plumb them into the normal water system.

Cheers
Pete.

Just inject LPG into the exhaust manifold instead.

I think the VGT turbo upgrade is the go. Turning up the fuel to get higher EGT's will wake the turbo up sooner, but the downsides are quite real.

the new golf gt is s/c and turbo 1.4l perol engine.

I would have thought one of Jase's variable vane turbos would be the go. They act like a small turbo at low revs and a bigger turbo at high revs.
a boiler pipe free flow manifold will bring in boost earlier also,as will having a large dump pipe out of the turbo with smallest backpressure possible.

I think you are dreaming if you think that a supercharger/turbo installation would be easy. Lots of switching as the turbo would be oversped if it had boost shoved down its throat.
Regards Philip A

One advantage of the water cooler is that you can mount a small rad and fan,you can get them from truck wreckers,anywere as the fan forces air through not forward motion.I was looking at mounting it in the hollow inbetween the inner and outer front guard with the inlet were the blanked hole is for the LHD air vent inlet is.It would be a good thing as the air even at idle would be cooled. Pat

Originally Posted by PhilipA

I would have thought one of Jase's variable vane turbos would be the go. They act like a small turbo at low revs and a bigger turbo at high revs.
a boiler pipe free flow manifold will bring in boost earlier also,as will having a large dump pipe out of the turbo with smallest backpressure possible.

I think you are dreaming if you think that a supercharger/turbo installation would be easy. Lots of switching as the turbo would be oversped if it had boost shoved down its throat.
Regards Philip A

It would take some creative plumbing but can/could be done, if would have to be some kind of bypass system so as the revs rise you are not over boosting with essentially 2 compressors. Turbo forcing into SC would be the way to do it with boost bypassing the sc at a certain range -when the sc runs out of puff.