New to me, 2007 CTS-V owner here...time to mod!
09-26-2017, 03:48 PM
#44
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I think the only definitive way to tell which is what it by checking the crank position sensor above the starter. If it's black it's 24x and if it's grey it's 58x.
01-02-2018, 09:27 PM
#49
No cats over hi flow cats, maybe 5rwhp. Most aftermarket cats and the OEM have a merge/X, so no huge gain there. You should be at 370-380 wheel (on a DJ) with just the headers, CAI, and tune. Add that FAST and it should get interesting! Port the TB and the FAST and you'd be at 400 for sure. Make sure to change your fuel filter and those injectors while you're at it, if you haven't lately. As is, I'd be surprised if you don't hit 390 if your engine is healthy.
01-03-2018, 05:27 AM
#52
No cats over hi flow cats, maybe 5rwhp. Most aftermarket cats and the OEM have a merge/X, so no huge gain there. You should be at 370-380 wheel (on a DJ) with just the headers, CAI, and tune. Add that FAST and it should get interesting! Port the TB and the FAST and you'd be at 400 for sure. Make sure to change your fuel filter and those injectors while you're at it, if you haven't lately. As is, I'd be surprised if you don't hit 390 if your engine is healthy.
I ll check for sure soon. For some reason, i thought most ls2 s were 58t 4x, and my Novas' ls2(06' gto) was actually the oddball 24x 1x. Now im curious too. I just gotta remember to see what color the crank sensor is and that should tell the whole story. Black or grey
01-03-2018, 09:01 AM
#54
Also, I THINK all the 06 and 07 cars are 58x, 04 and 05 24x. There may be some exceptions, but this is what is out there that I have seen.
https://ls1tech.com/forums/cadillac-...into-06-v.html
https://ls1tech.com/forums/cadillac-...into-06-v.html
01-03-2018, 04:02 PM
#55
the sad part is its something to do with our drive line outside the t56, the gto guys have hit the 400 mark without getting into the motor, we are not so lucky.
the 07s are indeed the 52x crank with the 4x cam on the front. i have had to change my cam sensor and its on the front above the crank. 06 was the change over if i remember right and some are and some are not.
*edit*
excerpt from super chevy, platform dependent.
"While bolting a cam into an LS engine is a simple routine, there are a couple of essential details that require attention. The original Gen III car and truck LS engines placed the cam sensor at the back of the block reading the 1x trigger located on the camshaft that was compatible with the stock 24x crank reluctor. With the evolution of the Gen IV LS2 in 2005, one change relocated the cam sensor to the timing chain cover. The cam gear also doubled as the cam sensor trigger wheel remaining a 1x for 2005. That evolved in 2006 when GM switched to a 58x crank reluctor, which demanded a 4x trigger for more resolution. Not all passenger car engines followed Corvette’s lead, however. For example, the 2006 GTO LS2 engines retained the original 24x crank reluctor and its 1x cam sensor partner."
http://www.superchevy.com/how-to/eng...s2-cam-sensor/
the 07s are indeed the 52x crank with the 4x cam on the front. i have had to change my cam sensor and its on the front above the crank. 06 was the change over if i remember right and some are and some are not.
*edit*
excerpt from super chevy, platform dependent.
"While bolting a cam into an LS engine is a simple routine, there are a couple of essential details that require attention. The original Gen III car and truck LS engines placed the cam sensor at the back of the block reading the 1x trigger located on the camshaft that was compatible with the stock 24x crank reluctor. With the evolution of the Gen IV LS2 in 2005, one change relocated the cam sensor to the timing chain cover. The cam gear also doubled as the cam sensor trigger wheel remaining a 1x for 2005. That evolved in 2006 when GM switched to a 58x crank reluctor, which demanded a 4x trigger for more resolution. Not all passenger car engines followed Corvette’s lead, however. For example, the 2006 GTO LS2 engines retained the original 24x crank reluctor and its 1x cam sensor partner."
http://www.superchevy.com/how-to/eng...s2-cam-sensor/
Last edited by vroom_vroom; 01-03-2018 at 04:09 PM.
01-03-2018, 08:30 PM
#57
It's a small difference, maybe 5%, but the difference in weight is less than that. GTOs and V1s are both pigs with similar curb weights IIRC. I'd attribute it to different driveshaft design and rear diff efficiency. I'd bet the biggest culprit is the damn dual mass flywheel. There is also just so much rubber in the V1 chassis and suspension, it creates energy (HP) leaks. Small differences pile up, not hard to get to 5-6% delta.
01-04-2018, 01:22 AM
#60
oooooo they are niccccceeeeeeee. buddy of mine has worked his way through several of them (currently has the pedders beast) and man every time you get it that car its made me hate the seats in every car i have had. they win hands down. i like them better than the v2 recaros.