vq30dek rebuild!!! more hp!!!
10-20-2010, 03:18 PM
#1
vq30dek rebuild!!! more hp!!!
After weighing my options and doing research on whether I should go with a VQ35DE (255hp) or VQ30DEK (222hp) for a new engine, I chose to go with the better engine, the VQ30DEK! Why? Because it weighs less, faster acceleration (my opinion), you can add more hp to exceed a VQ35DE, less hassle to install, cost efficient, and an overall better motor! My question is,greenboun what is the best performance rebuild kit for the VQ30DEK that will give me a definite increase in hp? I wanna rebuild the VQ30DEK motor from the ground up by changing all the internals. So if I can find a COMPLETE rebuild kit that can do all this then that will be great! Let me know. THX.
10-20-2010, 06:39 PM
#6
VQ35DE weighs less than a VQ30DEK does. VQ35DE also has more HP potential. "Has more acceleration" is just a ludicrous statement since that's a direct result of how much HP and TQ you make, with a vast advantage going to the VQ35. There are no "performance rebuild kits" available for the DEK. Your reasoning is pretty flawed. Good luck.
10-20-2010, 07:48 PM
#10
Look if you have the time and knowledge to do a 3.5 swap do it. If your on a budget do the dek. Personally im happy with my de I can shred the tires thru second and catch third I can't even dream of a 3.5 I mean what's possible 4th gear burnouts ?? Lol
10-20-2010, 11:40 PM
#12
thx everyone. @ 2000 max king. How is the vq35de weigh less than a vq30dek? Isn't the vq35de a 3.5 and the vq30dek a 3.0? And u and others say that the VQ35DE has more acceleration than a VQ30DEk, I beg to differ. A PERFECT example of a fully built vq3odek is "ceasars chariot", I bet u his car can probably whoop ne vq35de out there! And his is all motor! So I know u can build a VQ30DEK motor from the ground up and still beat a fixed up VQ35DE or even a VQ37VHR!!!! I just need to know what is a good company that makes performance internals or bigger pistons and rods for the vq30dek? Thank you very much. http://www.youtube.com/watch?v=BUTQv...eature=related
10-21-2010, 12:13 AM
#13
Nealoc187 actually ran a 12.92 ET with his 3.5 swapped 4th gen, and it was a very basic setup. The Chariot ran a few 13.5s, if I remember correctly. VQ35 weighs less because the valvetrain and other parts are lighter than that of the DEK.
If you're looking to do a performance "rebuild", get some cams (any VQ30 or VQ35 spec cams will work, as long as you get the adapters for them. This is a subject requiring a lot of research on its own in order to make the right choices), and get new seals and tensioners and all the other basic important stuff. Get a VQ35 RevUp oil pump as well for high revs. And VQ35HR valve springs, or JWT valve springs for high RPM.
Some mild porting on the heads, upper and lower intake manifolds will help, research the technique on it or have your parts sent out to a shop.
If you wanna go farther than that, go here. http://www.importperformanceparts.net/
They can make custom pistons to whatever compression ratio you'd like.
Research everything in depth. And then research some more. You'll also need equipment for tuning as well, which is a whole other story.
As for VQ37VHRs, they normally dyno between 258-279whp stock, and can hit 300whp with just a pair of intakes and test pipes. The most powerful all motor DEK made 272whp. The most powerful all motor VQ35 in a Maxima that is documented on this site hit 291whp. All on Dynojet dynos, using SAE correction.
If you're looking to do a performance "rebuild", get some cams (any VQ30 or VQ35 spec cams will work, as long as you get the adapters for them. This is a subject requiring a lot of research on its own in order to make the right choices), and get new seals and tensioners and all the other basic important stuff. Get a VQ35 RevUp oil pump as well for high revs. And VQ35HR valve springs, or JWT valve springs for high RPM.
Some mild porting on the heads, upper and lower intake manifolds will help, research the technique on it or have your parts sent out to a shop.
If you wanna go farther than that, go here. http://www.importperformanceparts.net/
They can make custom pistons to whatever compression ratio you'd like.
Research everything in depth. And then research some more. You'll also need equipment for tuning as well, which is a whole other story.
As for VQ37VHRs, they normally dyno between 258-279whp stock, and can hit 300whp with just a pair of intakes and test pipes. The most powerful all motor DEK made 272whp. The most powerful all motor VQ35 in a Maxima that is documented on this site hit 291whp. All on Dynojet dynos, using SAE correction.
10-21-2010, 12:14 AM
#14
thx everyone. @ 2000 max king. How is the vq35de weigh less than a vq30dek? Isn't the vq35de a 3.5 and the vq30dek a 3.0? And u and others say that the VQ35DE has more acceleration than a VQ30DEk, I beg to differ. A PERFECT example of a fully built vq3odek is "ceasars chariot", I bet u his car can probably whoop ne vq35de out there! And his is all motor! So I know u can build a VQ30DEK motor from the ground up and still beat a fixed up VQ35DE or even a VQ37VHR!!!! I just need to know what is a good company that makes performance internals or bigger pistons and rods for the vq30dek? Thank you very much. http://www.youtube.com/watch?v=BUTQv...eature=related
the block is the same, so to make the 3.5 they bore out the 3.0 block. so more material is removed. making it lighter.....
about the VQ30DE-K having better acceleration, i donno what to tell you.
ceaser was running 14.3-14.5 quarter mile runs. that was a 4th gen with mods(headers, y pipe, intake, etc)
a stock automatic VQ35DE 5.5 gen runs 14.5. if u put headers and y pipe on the VQ35 im willing to bet you will see 14.1......
common sense man.
oh and dont even say anything about the vq37HR. that motor is a beast.
10-21-2010, 07:13 AM
#16
After weighing my options and doing research on whether I should go with a VQ35DE (255hp) or VQ30DEK (222hp) for a new engine, I chose to go with the better engine, the VQ30DEK! Why? Because it weighs less, faster acceleration (my opinion), you can add more hp to exceed a VQ35DE, less hassle to install, cost efficient, and an overall better motor! My question is,greenboun what is the best performance rebuild kit for the VQ30DEK that will give me a definite increase in hp? I wanna rebuild the VQ30DEK motor from the ground up by changing all the internals. So if I can find a COMPLETE rebuild kit that can do all this then that will be great! Let me know. THX.
The VQ30 has a pretty strong bottom end, and us FI guys are hitting well over 300whp and still doing just fine on the stock internals.
Are you just trying to build an NA monster or trying to build a bullet proof motor for boost?
If anything, Id work on the top end.
thx everyone. @ 2000 max king. How is the vq35de weigh less than a vq30dek? Isn't the vq35de a 3.5 and the vq30dek a 3.0? And u and others say that the VQ35DE has more acceleration than a VQ30DEk, I beg to differ. A PERFECT example of a fully built vq3odek is "ceasars chariot", I bet u his car can probably whoop ne vq35de out there! And his is all motor! So I know u can build a VQ30DEK motor from the ground up and still beat a fixed up VQ35DE or even a VQ37VHR!!!! I just need to know what is a good company that makes performance internals or bigger pistons and rods for the vq30dek? Thank you very much. http://www.youtube.com/watch?v=BUTQv...eature=related
If he had a 3.5 Im sure youd see even better numbers from him.
10-21-2010, 11:34 AM
#17
thx everyone. @ 2000 max king. How is the vq35de weigh less than a vq30dek? Isn't the vq35de a 3.5 and the vq30dek a 3.0? And u and others say that the VQ35DE has more acceleration than a VQ30DEk, I beg to differ. A PERFECT example of a fully built vq3odek is "ceasars chariot", I bet u his car can probably whoop ne vq35de out there! And his is all motor! So I know u can build a VQ30DEK motor from the ground up and still beat a fixed up VQ35DE or even a VQ37VHR!!!! I just need to know what is a good company that makes performance internals or bigger pistons and rods for the vq30dek? Thank you very much. http://www.youtube.com/watch?v=BUTQv...eature=related
Nuff said!
10-21-2010, 12:12 PM
#18
Well if the man is gonna build a DEK, it is a good motor for boost or N/A performance purposes. There is no replacement for displacement, so a 3.5 would respond better to mods generally, and say, a 5.7 would respond even better 
Search through threads made by DandyMax, he holds the record for the fastest N/A DEK on Maxima.org.
Search through threads made by DandyMax, he holds the record for the fastest N/A DEK on Maxima.org.
10-21-2010, 04:50 PM
#19
mpvibes, you may beg to differ, but you're wrong. Using Ceasar as an example doesn't really help you since a) I was faster than him on my bolt on 3.0, and b) I was WAYYYY faster than him, with even less mods, on my 3.5.
I ran 13.4 @ 102 with a VQ30DE with I/Y/E, JWT ECU, MEVI, and slicks.
I went 12.9 @ 104 with my 3.5 swapped 4th gen with ONLY I/Y/E and slicks. No ECU or ignition timing tuning of ANY kind, no extended rev limiter. With equal mods on my 3.5 as I had on my 3.0, I'd say that the 3.5 is probably capable of a 12.7 or 12.6. It's seriously that much more powerful.
Mod for mod, there is absolutely no possible way for you to argue that the DEK is going to be faster than the VQ35.
Ceasar will know without me even saying this but I want to point out that what I typed above is in no way a slam against him, ceasar and I are good friends. I just want to say that so that no one else thinks what I typed was meant to put him down or belittle him. I'm just making a point to clue in our woefully misinformed thread starter. 3.5 is about 25lbs lighter than the 3.0, it makes way more power and torque, and mod for mod will make any given car quite a bit faster.
I ran 13.4 @ 102 with a VQ30DE with I/Y/E, JWT ECU, MEVI, and slicks.
I went 12.9 @ 104 with my 3.5 swapped 4th gen with ONLY I/Y/E and slicks. No ECU or ignition timing tuning of ANY kind, no extended rev limiter. With equal mods on my 3.5 as I had on my 3.0, I'd say that the 3.5 is probably capable of a 12.7 or 12.6. It's seriously that much more powerful.
Mod for mod, there is absolutely no possible way for you to argue that the DEK is going to be faster than the VQ35.
Ceasar will know without me even saying this but I want to point out that what I typed above is in no way a slam against him, ceasar and I are good friends. I just want to say that so that no one else thinks what I typed was meant to put him down or belittle him. I'm just making a point to clue in our woefully misinformed thread starter. 3.5 is about 25lbs lighter than the 3.0, it makes way more power and torque, and mod for mod will make any given car quite a bit faster.
10-21-2010, 08:32 PM
#21
to be fair, my old car probably could have gone 13.2 with a better clutch (I was still on a stock replacement clutch which limited how hard I could launch the car), but the fact remains that my 3.5 car was .5 seconds quicker and - perhaps more importantly - 2-3mph faster through the traps with significantly fewer mods than my 3.0 car was.
10-22-2010, 10:17 AM
#22
mpvibes, I don't want to flame you or ridicule you because everyone has to start from somewhere in their quest for knowledge. That being said, you obviously don't have a firm grasp on how things work with respect to automobiles. You could ask questions or argue with people on here (not recommended) or you could do yourself a favor and read. You might as well be a custodian arguing string theory with a physicist...
http://www.howstuffworks.com/engine.htm
http://auto.howstuffworks.com/auto-p...ation/fpte.htm
http://auto.howstuffworks.com/camshaft2.htm
http://www.howstuffworks.com/engine.htm
http://auto.howstuffworks.com/auto-p...ation/fpte.htm
http://auto.howstuffworks.com/camshaft2.htm
Last edited by beegeezy; 10-22-2010 at 10:22 AM.
10-22-2010, 11:32 AM
#23
Senior Member
Join Date: Sep 2009
Location: Worcester, MA
Posts: 4,011
Yo vibes man...
Its a matter of how much u want to spend and what your goals are.
If u tryin to make as much HP as u can...then get the 3.5L. (Apparently there are how tos on the ORG for doing the swap). The problem is, u have to find one and they gonna cost 1000+
HOneslty, the easiest way to go is the MEVI. If done properly u can prolly get another 10-20whp out of it. Same of 00vi, but thats a more difficult install.
Notice, I didnt even mention FI....i have seen used kits sell for $3k.
Its a matter of how much u want to spend and what your goals are.
If u tryin to make as much HP as u can...then get the 3.5L. (Apparently there are how tos on the ORG for doing the swap). The problem is, u have to find one and they gonna cost 1000+
HOneslty, the easiest way to go is the MEVI. If done properly u can prolly get another 10-20whp out of it. Same of 00vi, but thats a more difficult install.
Notice, I didnt even mention FI....i have seen used kits sell for $3k.
10-22-2010, 02:03 PM
#26
Yo vibes man...
Its a matter of how much u want to spend and what your goals are.
If u tryin to make as much HP as u can...then get the 3.5L. (Apparently there are how tos on the ORG for doing the swap). The problem is, u have to find one and they gonna cost 1000+
HOneslty, the easiest way to go is the MEVI. If done properly u can prolly get another 10-20whp out of it. Same of 00vi, but thats a more difficult install.
Notice, I didnt even mention FI....i have seen used kits sell for $3k.
Its a matter of how much u want to spend and what your goals are.
If u tryin to make as much HP as u can...then get the 3.5L. (Apparently there are how tos on the ORG for doing the swap). The problem is, u have to find one and they gonna cost 1000+
HOneslty, the easiest way to go is the MEVI. If done properly u can prolly get another 10-20whp out of it. Same of 00vi, but thats a more difficult install.
Notice, I didnt even mention FI....i have seen used kits sell for $3k.
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