Just Dyno Tuned my Alloytec 170

[pk2k78]

Hi All,

A while ago I had Liquid LPG system installed. Car was stock aside from the MCAI mod with shroud and K&N. In power terms the results were quite good. Power went from 171hp to 186hp with the addition of the gas system and no tune.

Since then I had pacemakers fitted as well as high flow cats and a 2nd hand Gen3 stocky catback (twin 2 1/14). I didn't get a before tune figure when the tune was done but I assumed that the exhaust would have picked up about 10hp, potentially bringing my power to 195hp.

Got the dyno tune done and ended up with 198hp. I was expecting at least 220hp considering the claimed tuning benefits of LPG being 106+ octane. On paper torque improved a little and the car does feel better from standstill, even gets wheelspin. I will report on economy later.

APS have done all the work (Gas system and Tune) and they suggested that the gen 3 exhaust could be holding it back and may have a collapsed baffle. They are going to quote me on a Di Filipo. Any thoughts?

Thanks Mat

[redcv6]

not bad power mate.

[andyman]

hmm interesting indeed,

so as you said spinning wheels off the lights, is that just a single pegger 3.08 diff on gas with foot flat to the floor going straight, thats pretty good for one of those if it does it consistantly

[pk2k78]

hmm interesting indeed,

so as you said spinning wheels off the lights, is that just a single pegger 3.08 diff on gas with foot flat to the floor going straight, thats pretty good for one of those if it does it consistantly

Yeah totally stock. I agree I was pretty impressed. On petrol before the tune I would be lucky to get a chirp from the wheels. Now the wheels light up from standstill in a straight line consistently. However this seems to be the only sweet spot. Up top doesn't feel a heap better and wasn't on paper.

I just want to make sure I'm getting the most out of it. Will spending more money on an exhaust get this for me? (They offered to tweak the tune for free if I upgraded).

[pk2k78]

Can anyone provide any info on an exhaust they have fitted that has PROVEN to create more power ie dyno proven?

[Fishman88]

Castle Hill exhaust have proven dynod exhaust from wat i heard. I dun have it on myself but they have good rep. Some of the guys here got their cars tuned there too.

[pk2k78]

Yeah I've heard a lot about CHE. Do they stock their own brand?

[monaro327]

che do a twin 2 1/4 that merges into 2.5inch that they have found gives the best gains without an torque loss dale is on here pm him.