If you were going to build a NA motor for a G8 what would you start with?
10-05-2019 | 09:24 PM
#21
Problem with a 2.3 TVS is the kit costs more then the whole engine bay of a 1200hp car. I do agree that 600hp will more then meet his goals and the stock engine will handle substantially more so no reason to build the engine.
Ahh I was thinking 140+mph.. for 125 you may as well get a little cam and slap a used LSA on the stock engine and still trap 130+. Cam alone can still trap 120, so really comes down to how much you want to spend on the chassis and traction.
5.3 bolts up like any other LS, generally turbo kits on these platforms are DIY deals. Theres a ton of room once you sort it out. That said I’d take a DIY turbo setup over any blower setup, just me though. You see guys spend thousands more for 2.3 maggies, f1 prochargers, etc and they all perform about as well as a 76mm turbo. Heck most dont outperform $500 knockoff turbos, just is what it is. Btw my stock 5.3 engine 76mm turbo ran mid 9’s in a G8. Engine was $500, turbo wasn't much more, fuel system was about the most expensive thing on the car.
Ahh I was thinking 140+mph.. for 125 you may as well get a little cam and slap a used LSA on the stock engine and still trap 130+. Cam alone can still trap 120, so really comes down to how much you want to spend on the chassis and traction.
5.3 bolts up like any other LS, generally turbo kits on these platforms are DIY deals. Theres a ton of room once you sort it out. That said I’d take a DIY turbo setup over any blower setup, just me though. You see guys spend thousands more for 2.3 maggies, f1 prochargers, etc and they all perform about as well as a 76mm turbo. Heck most dont outperform $500 knockoff turbos, just is what it is. Btw my stock 5.3 engine 76mm turbo ran mid 9’s in a G8. Engine was $500, turbo wasn't much more, fuel system was about the most expensive thing on the car.
10-07-2019 | 08:41 PM
#23
Originally Posted by Stopsign32v
Yes, I'm a troll that has been here twice as long as you...Dumb ****
Back on topic, the 5.3 seems to be a good option for a cheap motor. Is this the case or is there any benefits a 5.3 would hold over another option? I can't imagine someone wanting to go from 5.7 or 6.0 to a 5.3. Seems a good cam/LSA might be a good choice with a Circle D.
Back on topic, the 5.3 seems to be a good option for a cheap motor. Is this the case or is there any benefits a 5.3 would hold over another option? I can't imagine someone wanting to go from 5.7 or 6.0 to a 5.3. Seems a good cam/LSA might be a good choice with a Circle D.
10-08-2019 | 09:20 AM
#24
If that's all you're looking for, then a rebuilt 6.0 or a 6.2 with LS3 heads (ported or not; but I'd port them) and the BTR 229*/244* cam with 1 7/8 LTs should do it....NA.
No need to worry if the 5.3 you drop is garbage or not; no need to worry about issues related to a SC or turbo.
I'd also drop on a set of gears.....like the 3.27 gears that came in the A6 Chevy SS.
KW
No need to worry if the 5.3 you drop is garbage or not; no need to worry about issues related to a SC or turbo.
I'd also drop on a set of gears.....like the 3.27 gears that came in the A6 Chevy SS.
KW
Last edited by KW Baraka; 10-08-2019 at 09:29 AM.
10-08-2019 | 09:26 AM
#25
My point was, since the G8 was about the same weight as the Chevy SS and the Camaro SS, an engine similarly spec'ed for those cars would work for the G8. NO NEED to step way out of the way to build a 'torquer' engine.
Besides, with some limitations.....build the engine for HP and multiply the torque with the drivetrain....IMO.
KW
Besides, with some limitations.....build the engine for HP and multiply the torque with the drivetrain....IMO.
KW
10-08-2019 | 09:46 AM
#26
If that's all you're looking for, then a rebuilt 6.0 or a 6.2 with LS3 heads (ported or not; but I'd port them) and the BTR 229*/244* cam with 1 7/8 LTs should do it....NA.
No need to worry if the 5.3 you drop is garbage or not; no need to worry about issues related to a SC or turbo.
I'd also drop on a set of gears.....like the 3.27 gears that came in the A6 Chevy SS.
KW
No need to worry if the 5.3 you drop is garbage or not; no need to worry about issues related to a SC or turbo.
I'd also drop on a set of gears.....like the 3.27 gears that came in the A6 Chevy SS.
KW
There are some bolton kits available if you poke around.
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62nalide (10-09-2019)
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10-08-2019 | 01:50 PM
#31
Originally Posted by ddnspider
He's a Ford guy in case you didn't know. This IS new to him.
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62nalide (10-09-2019)
10-08-2019 | 02:12 PM
#33
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Joined: Sep 2014
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I will be making a thread here soon for guys like you. I have a notebook full of naturally aspirated cars that are 6 speeds and on pump gas. Different blocks, heads, intakes, cams, cluthes, raceweight, e.t and mph will be posted. Some on here and some are not and the others ive seen in person at tge LS fest in bowling green. Its just go be a long thread but its coming for guys to study and research to take in....
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10-08-2019 | 02:34 PM
#34
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Stopsign32v (10-08-2019)
10-08-2019 | 03:49 PM
#35
On a more on topic note I might try to keep the G8 NA. Shoot for 10's cam only...Well, the GM "cam only"
The hardest thing for me so far has been wrapping my head around a stall converter. Coming from manuals I don't know **** about autos. Yank, FTI, Circle D, and there was one more. I'm leaning towards the PAS3800 though.
10-08-2019 | 04:36 PM
#37
You guys are ********, I knew I should have made a new username.
On a more on topic note I might try to keep the G8 NA. Shoot for 10's cam only...Well, the GM "cam only"
The hardest thing for me so far has been wrapping my head around a stall converter. Coming from manuals I don't know **** about autos. Yank, FTI, Circle D, and there was one more. I'm leaning towards the PAS3800 though.they just calling a spade, a spade. Lol.
I like yank. If that makes any difference. I had a pas3600 in my gto. It worked good but I tightened it up to a 3200 after the turbo.
10-08-2019 | 04:38 PM
#38
10-08-2019 | 05:59 PM
#39
Originally Posted by lazerlemonta
The LS doesnt have enogh valves for stoppy. This is all a waste of time. I think he should swap a north star into it and that will put him back in a realm he can manage LOL
10-09-2019 | 10:51 AM
#40
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