Wow! Very interesting comparison. The back pressure in the exhaust might have too much flow for the revup. I can see why some people might go with resonated xyz test pipes. There needs to be some restriction to produce the right amount of performance. So you're either going for sound or power. The tune can also limited base on what aftermarket parts were installed. This comparison also validates that not all VQ engines operate without some deviation and overall health of its components. Like you mentioned a misfire or seals causing power loss. Fantastic video AJ
Ya I'm interested if we can keep the exhaust sounding smooth if I put a resonator into the XYZ pipe or if it'll get really raspy again but make that power up top. I'm in a experimentation phase and just taking everyone along for the journey 🙂
@@AnthonyJ350 nice. The Spectre is already quite unique. Very good clean build with tons of thought that went into the details. I consider yours to be a show-ready car.
I love these side by side comparisons, but its too bad we couldn't compare the dyno's on cars with the same modifications. The stock cats are probably whats killing his hp/tq numbers though. They're horribly restrictive, and even going to a high flow cat is night and day difference.
That poor DE non-revup with just a couple bolt ons, factory tune, and a history of misfiring vs a FBO revup that's properly dyno tuned xD But still interesting for sure, my non-revup DE with plenum spacer, 75mm TB, intake, headers, high flow cats, and gemini catback was about 263 whp and 240 lb*ft on a dynojet using standard correction at about 200 ft and about 60 degrees out, but is an auto. I know not really comparable since different dynos and stuff, just thought would share lol
It just goes to show you don't know what the cars do until you test them. And you really need to test them on the same dyno to compare them properly. I'm curious to see the power difference in the upper RPM range if I remove the high flow cat.
Always wanted to see what my G35 (non rev) made. 5/16 spacer, ported upper plenum, test pipes, motordyne catback. The plenum porting really helped mid range all the way up top. Just never got it tuned and dyno'd.
@@AnthonyJ350 I'm sure it likely was. It had the misfire issue I couldn't figure out after doing all the sensors (OE hitachi) and still had misfire. Literally the day I went to trade it, ran flawlessly, no misfire. But its all good I probably might not have known the fun of the supercharged v6 S5.
Nice video. Your HP and TQ being the same is interesting. I imagine if the DE non rev was running properly the tq numbers would be way higher. The tq would be close to HP. On my 04 DE on both a Mustang and dynojet, tuned and untuned the difference between the hp compared to the tq was 8. Edit: my car is manual.
I plan to pull the high flow cat out and put in a test pipe to see if the top end of the curve picks up. Will also bring another vehicle to test and compare.
@@AnthonyJ350 your car was tuned for test pipes before right? And it’s on the same tune? You probably will get that top end back. And I bet if you address the issues the non rev was having. The power should go up, if the motor is good.
@@siknin1 Tuned with test pipes. Then retuned with a single high flow cat from Motordyne in the XYZ pipe. So I want to see what it will do with a resonator and a retune. Just good for everyone to see how different parts affect the car.
@@siknin1 It has Tomei equal length shorties on it now. The car's mid range fattened up a bit with the new mods, but the high-flow car seemed to take away from the top end
@AnthonyJ350 oh sweet I was thinking of porting my lower manifold on my de I'm trying to get a shop to install my cams to and headers aiming for 300whp on a dynopack
@@AnthonyJ350 that de doesn't seem healthy if it's putting out those numbers , might have to do a redo . Vhr hr revup comparison would be cool. Getting a draggy on all 3 would be even better
@@Iftrades We ran the DE twice, it will need some work and it can redo again. 240ish horsepower is common to see on a basic DE though. The torque was lower than I thought it would do.
@AnthonyJ350 still seems a bit low, I know there's a lot of variables, but my first Z with a DE had 256whp with intake, spacer, and exhaust, on the factory tune.
That’s crazy because my old de was super slow did not beat anything on the street pushed no power but my new de has Similar to a 3.7 I was neck to neck with a g37 last night I’ll post vid if requested I’m just confused on how my new z has way more power than my old one maybee healthy motor?
Wow! Very interesting comparison. The back pressure in the exhaust might have too much flow for the revup. I can see why some people might go with resonated xyz test pipes. There needs to be some restriction to produce the right amount of performance. So you're either going for sound or power. The tune can also limited base on what aftermarket parts were installed.
This comparison also validates that not all VQ engines operate without some deviation and overall health of its components. Like you mentioned a misfire or seals causing power loss. Fantastic video AJ
Ya I'm interested if we can keep the exhaust sounding smooth if I put a resonator into the XYZ pipe or if it'll get really raspy again but make that power up top. I'm in a experimentation phase and just taking everyone along for the journey 🙂
@@AnthonyJ350 nice. The Spectre is already quite unique. Very good clean build with tons of thought that went into the details. I consider yours to be a show-ready car.
@@BoOmBaMan Thank you! Hope to get a stock REVUP and HR on the dyno and see how they compare.
I love these side by side comparisons, but its too bad we couldn't compare the dyno's on cars with the same modifications. The stock cats are probably whats killing his hp/tq numbers though. They're horribly restrictive, and even going to a high flow cat is night and day difference.
Ya it's a little but tricky going part for part. It's just about seeing who's combination is most effective to me.
That poor DE non-revup with just a couple bolt ons, factory tune, and a history of misfiring vs a FBO revup that's properly dyno tuned xD But still interesting for sure, my non-revup DE with plenum spacer, 75mm TB, intake, headers, high flow cats, and gemini catback was about 263 whp and 240 lb*ft on a dynojet using standard correction at about 200 ft and about 60 degrees out, but is an auto. I know not really comparable since different dynos and stuff, just thought would share lol
It just goes to show you don't know what the cars do until you test them. And you really need to test them on the same dyno to compare them properly.
I'm curious to see the power difference in the upper RPM range if I remove the high flow cat.
Always wanted to see what my G35 (non rev) made. 5/16 spacer, ported upper plenum, test pipes, motordyne catback. The plenum porting really helped mid range all the way up top. Just never got it tuned and dyno'd.
Definitely need to get it tuned. The car might be running lean at certain RPMs.
@@AnthonyJ350 I'm sure it likely was. It had the misfire issue I couldn't figure out after doing all the sensors (OE hitachi) and still had misfire. Literally the day I went to trade it, ran flawlessly, no misfire. But its all good I probably might not have known the fun of the supercharged v6 S5.
Nice. Big difference between looking fast and being fast eh?
All depends where you're putting the cash.
Nice video. Your HP and TQ being the same is interesting. I imagine if the DE non rev was running properly the tq numbers would be way higher. The tq would be close to HP. On my 04 DE on both a Mustang and dynojet, tuned and untuned the difference between the hp compared to the tq was 8.
Edit: my car is manual.
I plan to pull the high flow cat out and put in a test pipe to see if the top end of the curve picks up.
Will also bring another vehicle to test and compare.
@@AnthonyJ350 your car was tuned for test pipes before right? And it’s on the same tune? You probably will get that top end back. And I bet if you address the issues the non rev was having. The power should go up, if the motor is good.
@@siknin1 Tuned with test pipes. Then retuned with a single high flow cat from Motordyne in the XYZ pipe.
So I want to see what it will do with a resonator and a retune. Just good for everyone to see how different parts affect the car.
@@AnthonyJ350 ok I got you. Yea it’s always good to see what parts do to the hp/tq. Is your car on OEM headers also?
@@siknin1 It has Tomei equal length shorties on it now. The car's mid range fattened up a bit with the new mods, but the high-flow car seemed to take away from the top end
Man I need more power 😂
Thanks for bringing the car out!
i would like to see the difference in porting the manifold makes on both to !
I ported mine. We'll pull the high flow cat and see how the car does next season. And we'll bring in a supercharged DE.
@AnthonyJ350 oh sweet I was thinking of porting my lower manifold on my de I'm trying to get a shop to install my cams to and headers aiming for 300whp on a dynopack
@@AnthonyJ350 do you have a lighter fly wheel to
@@dylan2gI've never checked, but I think this car still has the dual mass in it.
So basically DE the world
Why not?!
Which one is better the DE or Rev Up?
Technically the REVUP. But the DE seems to consume a little less oil. Just change and check the oil regularly.
Wheres the HR comparison
Hopefully next season I can co-ordinate with someone who owns one.
@@AnthonyJ350 that de doesn't seem healthy if it's putting out those numbers , might have to do a redo . Vhr hr revup comparison would be cool. Getting a draggy on all 3 would be even better
@@Iftrades We ran the DE twice, it will need some work and it can redo again. 240ish horsepower is common to see on a basic DE though. The torque was lower than I thought it would do.
@AnthonyJ350 still seems a bit low, I know there's a lot of variables, but my first Z with a DE had 256whp with intake, spacer, and exhaust, on the factory tune.
@@crimsonsw21 On a Mustang dyno? This one is calibrated to show Dynojet numbers.
That’s crazy because my old de was super slow did not beat anything on the street pushed no power but my new de has Similar to a 3.7 I was neck to neck with a g37 last night I’ll post vid if requested I’m just confused on how my new z has way more power than my old one maybee healthy motor?
Is it possible the new one has a different gear ratio in the differential?
WTF? My DE made 280 hp and 262tq... it's an automatic....lol. DE s make good power on a healthy motor.
What kind of dyno did you run it on?
We're you on a dynapak where they take the wheels off?
Dynocom.
No.
@@AnthonyJ350 Dynocom.
So, the fuckin DE have 230 hp? 😒
This one did on this dyno. Keep in mind car's results will vary, depending on the type and brand of dyno.