LS6 F-Body Engine Swaps: Post Mods & Dyno #'s
09-03-2011, 08:04 AM
#41
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It's never been in the car w/o bolt-ons of some sort. I've just kept changing stuff as I found deals or made stuff to get it where it is (9yrs worth on a budget). I think it's a tapped out on the stock longblock. I'm sure a cam change would do something, but why....it runs pretty danm good, idles smooth and gets great mpg. Besides I have a complete ls7 for the car.
As a side note....It butt hurts alot of people being a stock crate engine running like it does....espescially the ford crowd lol
As a side note....It butt hurts alot of people being a stock crate engine running like it does....espescially the ford crowd lol
09-05-2011, 01:10 AM
#43
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I'll be getting my crate ls6 with basic bolt-ons tuned next Monday. It's an auto so I'm hoping for around 380...obviously more would be nice though! Awesome numbers HioSSilver.
09-08-2011, 10:30 AM
#46
Frost can hook you up as posted earlier. However, I am not sure if anyone is willing to give away for free what they had to buy themselfs. If you offer to share the other persons cost for their tune, they may be willing to send you the file. Just my thoughs, no disrespect intended.
09-08-2011, 05:39 PM
#47
awesome numbers! I've never had ANY stock LS6 make those numbers on our dynojet; not in a vette or an F-body. I'd sure be more than satisfied if it were mine.
...actually, I had an 01 M6 F-body with 1 7/8" LTs and a Fast 90 make something like 404-406 rwhp and 385-ish tq. That graph was looking a little goofy until you realize that the scales for tq and hp for some reason are different.
09-09-2011, 07:42 AM
#50
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I have seen a couple other guys on here make 408 and 410. I have a ewp and HS roller rockers also, stock ratio. I mainly wanted the roller tip to help reduce guide wear.....I hammer this thing on backroads some. I think the kooks, 3" ory and my own 3.5" exhaust works pretty well. I had macs on it w/ory @ 407rwhp originally. I think it's just been several little things that add up.
09-09-2011, 10:34 AM
#51
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HioSSilver, I always respected the way you tuned your car. And I'll probably go a similar route (before an A&A kit 
). After seeing your mods, it becomes clear how to make great numbers on a ls6 with a stock cam.
Most bolt-on z06 guys stop at full exhaust, intake, and tune. That's why, they like, me don't see much more than 385rwhp with bolt-ons. That's with cats too and 3" collectors into 2.5" cats at that. I know I'll gain more hp by putting my 3" x-pipe in.
I would also like to break the 400whp mark with my Z by adding a few more bolt-ons. Already have a ported tpis ls6 intake and a ported ls2 throttle body. Thinking about elec water pump and roller rockers. I know, I know RR aren't considered true bolt-ons by many, but with a 1.8 ratio, I'd expect to see 430whp on a sae corrected dynojet dyno after I finish my mods. I'll post numbers eventually, mainly to show gains of my 92mm ls6 intake.
). After seeing your mods, it becomes clear how to make great numbers on a ls6 with a stock cam. Most bolt-on z06 guys stop at full exhaust, intake, and tune. That's why, they like, me don't see much more than 385rwhp with bolt-ons. That's with cats too and 3" collectors into 2.5" cats at that. I know I'll gain more hp by putting my 3" x-pipe in.
I would also like to break the 400whp mark with my Z by adding a few more bolt-ons. Already have a ported tpis ls6 intake and a ported ls2 throttle body. Thinking about elec water pump and roller rockers. I know, I know RR aren't considered true bolt-ons by many, but with a 1.8 ratio, I'd expect to see 430whp on a sae corrected dynojet dyno after I finish my mods. I'll post numbers eventually, mainly to show gains of my 92mm ls6 intake.
09-13-2011, 05:21 PM
#53
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So I got my numbers...not too good haha. Apparently I have having some bad fueling issues around 5500. Mike at New Era managed to get out 321HP and 324TQ on a safe tune. That is with my 3200-3400 stall and 18" wheels.
I plan to get one of the 98 Racetronix kits and will be swapping to a better catback. I have LTs and TSP Y, but the previous owner had some custom catback done, with what looks like a flowmaster crossflow. I know the dual 3" necked down to stock size with a flowmaster isn't helping me at all and I have some exhaust leaks at my band clamps.
I plan to redo the catback. Thinking the TSP Y into a 3.5" i pipe, necked back down to a 3" over axle custom hidden tip. Also want to change out the wheels for 17s. I do not care for the previous owner's taste haha.
You guys think once I get the new pump, 17s, and a better exhaust the numbers will be more in-line with what everyone else here is seeing?? 320s seem like what stock LS1s are getting. =\
I plan to get one of the 98 Racetronix kits and will be swapping to a better catback. I have LTs and TSP Y, but the previous owner had some custom catback done, with what looks like a flowmaster crossflow. I know the dual 3" necked down to stock size with a flowmaster isn't helping me at all and I have some exhaust leaks at my band clamps.
I plan to redo the catback. Thinking the TSP Y into a 3.5" i pipe, necked back down to a 3" over axle custom hidden tip. Also want to change out the wheels for 17s. I do not care for the previous owner's taste haha.
You guys think once I get the new pump, 17s, and a better exhaust the numbers will be more in-line with what everyone else here is seeing?? 320s seem like what stock LS1s are getting. =\
09-14-2011, 07:43 AM
#54
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Unless your on a mustang dyno your way off. The stock tune should've got you more hp than that. What did your car dyno before the swap?
Realistically, you should get abot 60 hp out of a ls6 swap with nothing else changed. Then you can massage it alog after that to fine tune it.
Realistically, you should get abot 60 hp out of a ls6 swap with nothing else changed. Then you can massage it alog after that to fine tune it.
09-14-2011, 09:03 AM
#55
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Unfortunately I do not know what the car's previous motor was putting down. I bought the car with a blown motor. My father and I dropped in a brand new crate LS6 and did some basic bolt-ons. This was the first dyno tune on it.
I know an underdrive pulley would help a little too but I don't plan to get one unless I end up doing a cam swap. I'm thinking it may be because of the fueling issue that the numbers are so low. I'll try to get a pic of the graph and post it up later, in a new thread.
I know an underdrive pulley would help a little too but I don't plan to get one unless I end up doing a cam swap. I'm thinking it may be because of the fueling issue that the numbers are so low. I'll try to get a pic of the graph and post it up later, in a new thread.
09-14-2011, 10:33 AM
#56
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A ls6 should run fine on the stock pump. Is your ls6 a 01(385hp) or 02(405hp)?
Just as a point of reference. Mine made 399rwhp first pull on the dyno still with ls1 tune but with rev limit bumped up. That with mac headers and ory, udp, ported tb, airlid, granetelli mass air, stock slp catback.
Just as a point of reference. Mine made 399rwhp first pull on the dyno still with ls1 tune but with rev limit bumped up. That with mac headers and ory, udp, ported tb, airlid, granetelli mass air, stock slp catback.
09-14-2011, 10:44 AM
#57
A ls6 should run fine on the stock pump. Is your ls6 a 01(385hp) or 02(405hp)?
Just as a point of reference. Mine made 399rwhp first pull on the dyno still with ls1 tune but with rev limit bumped up. That with mac headers and ory, udp, ported tb, airlid, granetelli mass air, stock slp catback.
Just as a point of reference. Mine made 399rwhp first pull on the dyno still with ls1 tune but with rev limit bumped up. That with mac headers and ory, udp, ported tb, airlid, granetelli mass air, stock slp catback.
09-14-2011, 11:23 AM
#58
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Stu's #'s are way low. Even if it was on mustang dyno. My ls1 did 305rwhp on a mustang dyno. I don't know how much a auto will eat up power but I have seen stock ls1's with a auto go over 300rwhp on a dyno jet. I would think it would'nt be a issue to get a auto ls6 to do at least 380rwhp. 6sp cars should go over 400rwhp easily.
Proper testing and combo's can get ya to 426rwhp like me.
Proper testing and combo's can get ya to 426rwhp like me.
09-14-2011, 12:35 PM
#59
Stu's #'s are way low. Even if it was on mustang dyno. My ls1 did 305rwhp on a mustang dyno. I don't know how much a auto will eat up power but I have seen stock ls1's with a auto go over 300rwhp on a dyno jet. I would think it would'nt be a issue to get a auto ls6 to do at least 380rwhp. 6sp cars should go over 400rwhp easily.
Proper testing and combo's can get ya to 426rwhp like me.
Proper testing and combo's can get ya to 426rwhp like me.