[dreksnot]

I think I'm down with a target of 750-850rwhp at my mile high altitude (SAE dyno correction 1.2) for a daily driver/weekend warrior ZLE. Would be nice to be able to do this with 91 octane but I have E85 nearby.

I don't want to open the motor or do heads. Prefer not to do LTH, if can get away with it.

Will a setup consisting of:

2650 Maggie
JMS BAP
LPE BB or Goliath
+30% injectors

hit close to that target?

Is a transmission tune necessary at that power level?

I know Kong X-porting the LT4 can provide nice HP gains at the expense of more heat (I don't want meth). Might kill my road course race days.

Was looking at the Whipple 3.0L but having to shim the subframe and cut the hood insert aren't preferable for the ZLE.

Perhaps later, when that HP level isn't working anymore, I can always cam, LTH and put a higher volume LPFP in, or add the upcoming DSX PI setup.

[Joshinator99]

Originally Posted by dreksnot

I think I'm down with a target of 750-850rwhp at my mile high altitude (SAE dyno correction 1.2) for a daily driver/weekend warrior ZLE. Would be nice to be able to do this with 91 octane but I have E85 nearby.

I don't want to open the motor or do heads. Prefer not to do LTH, if can get away with it.

Will a setup consisting of:

2650 Maggie
JMS BAP
LPE BB or Goliath
+30% injectors

hit close to that target?

Is a transmission tune necessary at that power level?

I know Kong X-porting the LT4 can provide nice HP gains at the expense of more heat (I don't want meth). Might kill my road course race days.

Was looking at the Whipple 3.0L but having to shim the subframe and cut the hood insert aren't preferable for the ZLE.

Perhaps later, when that HP level isn't working anymore, I can always cam, LTH and put a higher volume LPFP in, or add the upcoming DSX PI setup.

Yes that will get you in that range and I’d certainly recommend you run some E. You don’t need full E85 to get most of the benefits… I run E50 to run my numbers.

TCM tune is not necessary, but the car is slower without the tune.

[Megahurtz]

You'll need E30-E40 to keep any kind of timing in it with stock exhaust manifolds. 2650+ fuel parts and a larger throttle body would get you in your target range. Keep the stock airbox, use a drop in green filter, and a ported 95mm TB.

[radz28]

Originally Posted by Megahurtz

You'll need E30-E40 to keep any kind of timing in it with stock exhaust manifolds. 2650+ fuel parts and a larger throttle body would get you in your target range. Keep the stock airbox, use a drop in green filter, and a ported 95mm TB.

You don't think you'd need a 103 and a BG?

[dreksnot]

Originally Posted by Joshinator99

Yes that will get you in that range and I’d certainly recommend you run some E. You don’t need full E85 to get most of the benefits… I run E50 to run my numbers.

TCM tune is not necessary, but the car is slower without the tune.

Originally Posted by Megahurtz

You'll need E30-E40 to keep any kind of timing in it with stock exhaust manifolds. 2650+ fuel parts and a larger throttle body would get you in your target range. Keep the stock airbox, use a drop in green filter, and a ported 95mm TB.

As silly as this sounds, I'd like to keep this power build as power-productive and as simple as possible. I come off a +1,350whp LSX, which was simple to fuel and make power. This LT world is delicate, at least how I'm seeing them.

Would the system I spec'd in Thread #1 be too tight to try and fuel full E85 for that power level? Like I said, "relatively" simple (I am so tired of having to wrench, or tweak the tune, on the car before taking it out of the garage and have fun). It's much easier to just swing by the gas station pump and put either 91 or E in the tank and not have to see my blend (although I'd want the car tuned to run any blend). Maybe throw a SmoothBoost in to cap boost when running 91 or on the street. Would I need to upgrade to the Katech Twin Fuel or DSX drop in LPFP over the JMS BAP to open that bottleneck? Would I need to step up to the +65% fuel injectors? The upcoming DSX PI system sounds marvelous, but it would complicate things (maybe?)

If I'd need to go LTH, then I still need to conform to our county's emissions standards, so I presume some good hiflow cats feeding my Corsa Extreme cat back exhaust.

Originally Posted by radz28

You don't think you'd need a 103 and a BG?

I'm not convinced the RFGP is more than snake-oil. Maybe a few more HP, maybe not. I already have a drop in filter ready for the stock airbox (I'm not interested in pretty looks or more whine). As for the TB, easy to go 103mm, like the Soler if that's the game, or NW.

Wondering if more cooling would be necessary, like when road coursing. More power generates more heat, but the ZLE has tons of coolers.

[Megahurtz]

Originally Posted by radz28

You don't think you'd need a 103 and a BG?

You could, I just think that going BG and 103 with stock exhaust manifolds wouldn't be very beneficial over a 100mm eff TB with a green filter in the stock airbox. At least not for the price.

Originally Posted by dreksnot

As silly as this sounds, I'd like to keep this power build as power-productive and as simple as possible. I come off a +1,350whp LSX, which was simple to fuel and make power. This LT world is delicate, at least how I'm seeing them.

Would the system I spec'd in Thread #1 be too tight to try and fuel full E85 for that power level? Like I said, "relatively" simple (I am so tired of having to wrench, or tweak the tune, on the car before taking it out of the garage and have fun). It's much easier to just swing by the gas station pump and put either 91 or E in the tank and not have to see my blend (although I'd want the car tuned to run any blend). Maybe throw a SmoothBoost in to cap boost when running 91 or on the street. Would I need to upgrade to the Katech Twin Fuel or DSX drop in LPFP over the JMS BAP to open that bottleneck? Would I need to step up to the +65% fuel injectors? The upcoming DSX PI system sounds marvelous, but it would complicate things (maybe?)

If I'd need to go LTH, then I still need to conform to our county's emissions standards, so I presume some good hiflow cats feeding my Corsa Extreme cat back exhaust.



I'm not convinced the RFGP is more than snake-oil. Maybe a few more HP, maybe not. I already have a drop in filter ready for the stock airbox (I'm not interested in pretty looks or more whine). As for the TB, easy to go 103mm, like the Soler if that's the game, or NW.

Wondering if more cooling would be necessary, like when road coursing. More power generates more heat, but the ZLE has tons of coolers.

With just a low side upgrade, you wont get very much E in the car on the stock high side.

[RobZL1]

It's basically @airtroop01's build:

Part 1 on 91, with 2650, 103, BG, stock exhaust (680rwhp):
https://www.camaro6.com/forums/showthread.php?t=599690

Part 2 on full pump E with THP port injection (800rwhp):
https://www.camaro6.com/forums/showthread.php?t=600573

[dreksnot]

Originally Posted by Megahurtz

With just a low side upgrade, you wont get very much E in the car on the stock high side.

I did also mean that LPFP in addition to the LPE BB or Goliath and bigger injectors. I just hear the low side is the first limiter for fuel and it definitely needs addressing. I don't know the cap of the JMS BAP but they advertise the drop-in LPFPs to be up to 1,200whp.

I'm also seem to over-engineer my setups, ready for the next step in power. But for starters, I'm eyeing 800 plus or minus 50 in order to keep me 100% streetable as a daily, but have the bite when racing with the sound I have (Corsa). I want the car to be able to do it all with one setup (daily, autocross, drag, road course, maybe half or mile). I might keep it there, I might go for broke later.

[Megahurtz]

Originally Posted by dreksnot

I did also mean that LPFP in addition to the LPE BB or Goliath and bigger injectors. I just hear the low side is the first limiter for fuel and it definitely needs addressing. I don't know the cap of the JMS BAP but they advertise the drop-in LPFPs to be up to 1,200whp.

I'm also seem to over-engineer my setups, ready for the next step in power. But for starters, I'm eyeing 800 plus or minus 50 in order to keep me 100% streetable as a daily, but have the bite when racing with the sound I have (Corsa). I want the car to be able to do it all with one setup (daily, autocross, drag, road course, maybe half or mile). I might keep it there, I might go for broke later.

Are you going to to put a cam in the car?

[dreksnot]

Originally Posted by Megahurtz

Are you going to to put a cam in the car?

I don't want to open the motor at this point. With the larger bore in the LPE BB/Goliath, was hoping it could provide enough fueling with the upgraded LPFP and larger injectors. (we don't know the actuals as the Goliath hasn't been tested yet with the stock cam). I just have wishful thinking at the moment.

[Megahurtz]

Originally Posted by dreksnot

I don't want to open the motor at this point. With the larger bore in the LPE BB/Goliath, was hoping it could provide enough fueling with the upgraded LPFP and larger injectors. (we don't know the actuals as the Goliath hasn't been tested yet with the stock cam). I just have wishful thinking at the moment.

I'll be testing the Goliath and XDI 30's on the stock LT4 Cam. Depending on the E% mixture you could potentially get close to your goal but not with full E85.

I am guessing about ~725-750 wheel may be the limit here on the stock cam lobe and somewhere between E50-E60. I suppose you could run E40 and push more boost to try and get closer to 800. I think its just out of range of the stock cam fuel lobe unless you add Meth or Port.

Now add a cam and your power ceiling goes way up with the Goliath and XDI 50's/70's.

[Ericdared]

Originally Posted by Megahurtz

I'll be testing the Goliath and XDI 30's on the stock LT4 Cam. Depending on the E% mixture you could potentially get close to your goal but not with full E85.

I am guessing about ~725-750 wheel may be the limit here on the stock cam lobe and somewhere between E50-E60. I suppose you could run E40 and push more boost to try and get closer to 800. I think its just out of range of the stock cam fuel lobe unless you add Meth or Port.

Now add a cam and your power ceiling goes way up with the Goliath and XDI 50's/70's.

Is that with a stock lowside or with the katech drop in/dsx aux pump / jms voltage booster?

[KingLT1]

Originally Posted by Megahurtz

I'll be testing the Goliath and XDI 30's on the stock LT4 Cam. Depending on the E% mixture you could potentially get close to your goal but not with full E85.

I am guessing about ~725-750 wheel may be the limit here on the stock cam lobe and somewhere between E50-E60. I suppose you could run E40 and push more boost to try and get closer to 800. I think its just out of range of the stock cam fuel lobe unless you add Meth or Port.

Now add a cam and your power ceiling goes way up with the Goliath and XDI 50's/70's.

If we consider the dyno correction factor, the results will show a much higher number than actual. So I wouldn't be surprised if he hits 75-800whp on full E because the power number will be inflated 20%. Reality is that setup is only going to make ~650whp uncorrected at that elevation. I do think the 2650 makes sense here since the blower will need to be spun much harder to make power.

[dreksnot]

Originally Posted by KingLT1

If we consider the dyno correction factor, the results will show a much higher number than actual. So I wouldn't be surprised if he hits 75-800whp on full E because the power number will be inflated 20%. Reality is that setup is only going to make ~650whp uncorrected at that elevation. I do think the 2650 makes sense here since the blower will need to be spun much harder to make power.

So, I actually want 800hp to the ground, so it would be a corrected 960whp at sea level (although I wouldn't plan to go down there to see). I hate this altitude correction factor thing because it always seems to confuse the results when in discussions. I've been told 91 octane burns up here like 93 does at sea level. Less air (oxygen) to use for combustion sucks.

What I need is more air. More air equates to more power with fueling. In essence, I have to push a larger volume of air into the motor to make the same power as down low, hence the 1.20 correction factor.

Might just have to bite the bullet: install the 2650 for maybe 50-75hp add for now or just have it in the box on the shelf in the garage. Hurry up and wait for when Steck gets that PI system out (Atlas?), install that with a higher volume LPFP and FF. Then that removes the fueling constraints up to 1,000whp or so, and is actually less costly.