Ordered a TVS2300 for the GTO
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Nope. I don't want to break the stock long block and I also don't want to dig into the stock long block and build it up to support more psi.
If dropping the cats doesn't unveil the "missing" HP I'll either just enjoy it as it is or demod it back to NA to where it was prior.
If dropping the cats doesn't unveil the "missing" HP I'll either just enjoy it as it is or demod it back to NA to where it was prior.
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Not sure I follow the question. The Maggie kit comes with an intercooler built in as part of the system. Liquid to air cooler. IATs were very reasonable during our dialing in runs.
One of my CTS V buddies added some sort of aftermarket thing I think it was called the interchiller.
One of my other buddy's 5th gen maggie stick car would see a pretty big increase in IATs during a 1/4 mile pass.
But I could see you free up 10+ rwhp from going catless.
How about E85?
One of my other buddy's 5th gen maggie stick car would see a pretty big increase in IATs during a 1/4 mile pass.
But I could see you free up 10+ rwhp from going catless.
How about E85?
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Today I ordered a Lingenfelter CAI system for the car. Unfortunately there are no real options for an OTRCAI with a Maggie on a GTO other than the Maggie-specific DuSpeed which is really expensive as it is and then also requires a change in heat exchangers up front to allow it to fit. That would add up to a REALLY expensive intake system upgrade. But a recent experiment with a stock air box K&N filter proved to me I have had a pretty noticeable intake restriction (had a Wix paper filter in the stock box previously). I actually despise K&N filters but I had one and wanted to know if the intake system was a restriction and just putting it in I noticed improved throttle response and quicker revs. Maybe slightly more power? Not sure, but it was certainly more responsive and quicker to rev.
You also could have logged KPA to see if there was a restriction.
I mean you could always run more timing and see what it pulls on the dyno, but on the street you'd likely try to balance power gains with chances of hurting the engine so you'd have timing scaling down as IATs get up in the mid 100s and higher.
I mean you could always run more timing and see what it pulls on the dyno, but on the street you'd likely try to balance power gains with chances of hurting the engine so you'd have timing scaling down as IATs get up in the mid 100s and higher.
If you were hitting it with 22 timing on 91 I don't think there is much left on the table.
!cats should add back in at least 10rwhp I'm thinking?
If y'all have E85 I'd do that if you can plumb in a flex fuel sensor.
!cats should add back in at least 10rwhp I'm thinking?
If y'all have E85 I'd do that if you can plumb in a flex fuel sensor.
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If the cats are a restriction, I'd think better ones or none at all would net more than 10hp. Will have to experiment to see.
E85 would require yet bigger injectors and likely upgrades to the fuel system (return line, bigger line from the tank), doesn't seem worth it for the expense. Besides, there is more in there with gasoline so there is no need yet to invite new variables at this point. E85 would be nice to have it run cooler though if nothing else.
Yeah could do a dyno pull open headers...
Good chat about KPA: https://forum.hptuners.com/showthrea...aust-too-small
So if changing the cam or running E85 are not options at this point, pretty much changing out the airbox and trying catless are your best options.
I'd be curious if folks have changed from the LS2 intake to a 90 or 105mm FAST and seen increases...
Good chat about KPA: https://forum.hptuners.com/showthrea...aust-too-small
So if changing the cam or running E85 are not options at this point, pretty much changing out the airbox and trying catless are your best options.
I'd be curious if folks have changed from the LS2 intake to a 90 or 105mm FAST and seen increases...
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Either way with that setup you're running I bet it's a blast to drive!!
Power wise this might be where it's at especially on a conservative tune which isn't terrible. Obviously adding a cam that's spec'd for the blower would open up a good jump 40-50 rwhp? Running a cam for the blower I don't feel would change the overall street manners of the car. But a cam and flex fuel tune which would require fueling upgrades would do wonders but if it makes you smile as-is that's all that really matters.
Power wise this might be where it's at especially on a conservative tune which isn't terrible. Obviously adding a cam that's spec'd for the blower would open up a good jump 40-50 rwhp? Running a cam for the blower I don't feel would change the overall street manners of the car. But a cam and flex fuel tune which would require fueling upgrades would do wonders but if it makes you smile as-is that's all that really matters.