Late model SV6 Tuning

[kuzman89]

they would be tri y, can't see pacemaker altering the previous design too much + I'd assume they'd bolt up to the existing cats (they are pretty far up) so tri-y's, make better business sense for pacemaker to tri-ys too. The ones I have are tri-y

 

[kuzman89]

Not too much in it too fit yourself, save yourself $100+. Biggest pain was getting the existing manifolds out and the alternator got in the way. Cost $650 coated.

 

[soop]

They look like tuned length 3 -1 from that angle.

And yeah, extractors are very easy to fit yourself, one bonus with pacemaker is if you get the whole system it all bolts together and fits perfectly. (did for my ss anyway, can't see the SV6 being a great deal different)

 

[Jarp]

mmm they make much difference to sound Kuzman?

 

[kuzman89]

Yeah, much better exhaust tone, doesn't sound as thrashy in the engine bay, purrs abit more. I cut out the hotdogs/crimp in my exhaust at the same time so not sure if that contributed to it or not. I'm happy with it. If you ever plan on supercharger or NOS etc, sort of a requirment to IMO to get headers and cats done.

 

[soop]

The extractors improve the flow out of the heads by a country mile. I don't care what motor your talking about, Factory manifolds are ****!

 

[kuzman89]

agreed dude

 

[monaro327]

i don't see how you could make a tri-y for a v6? straight 6 yeah but not a v6 and get balance?

 

[monaro327]

Jarp as for the power output for your SIDI i'll guess about 165-175rwkws on Dale's dyno once all work complete. i know this isn't the figure you want but just go to any melbourne or qld workshop if you want to see good numbers. i've seen LS1 make similar numbers stock on Dales dyno, just they usually make around 220-230 once they've had the fruit added.

as for a V6 vs V8 debate i went from a VE SV6 to my current cars. servicing is about the same maybe a little bit cheaper actually for the V8 as i find spark plugs are alot cheaper for a V8 to the alloytec. i do all the servicing myself even on my SV6 never had a problem with warranty i just filled the log book out myself even when i traded it the guy was happy to accept it as having full service history. rego at least in NSW is exactly the same, insurance is about the same for the VY V8 as it was for the sv6 for the senator is huge but thats cause it's a different league of car. only one insurance company would insure under 25 with a hsv and it was justcar.

also with servicing i'll say this, from a bloke that does it all himself working on the LSX series motors is a hell of alot easier. not fun doing plugs or coolant on the alloytec. to drain the coolant the thermostat housing in around the back of the motor under the intake manifold. worse design ever might be ok in american east west cars but not in a commodore.

tyre wear and fuel is more how you drive it. generally the V6 was better on fuel but that said if you carry some load the V8 is better as it just doesn't notice the extra weight as much. tyre wear i haven't really seen a difference we drive like ########s whether it's a v6 or v8. but it's easier to have bad tyre wear in a v8 thats for sure.

Flame suit on.

 

[kuzman89]

ahh oops so they are 3-1's