G35 Coupe V35 2003 - 07 Discussion about the 1st Generation V35 G35 Coupe

How much horse power should i expect

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Old Jul 6, 2012 | 05:28 PM
  #16  
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Oem revup air box, z tube, k&n filter used. $75
NGK lfr6aix-11 spark plugs $60
Used basic 5/16" plenum spacer $150
Uprev tuner version $550 (so you can adjust it yourself in the future and not pay out again)
Long tube headers $500
Used car back $700 brand is irrelevant
Rear dif from a 6MT with oem vlsd of Craigslist $150
Apexi exv n1 coil overs $1000
Wheel spacers $200
Transgo installed $700

Should be right at $4000 and will really bring her to life
 
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Old Jul 6, 2012 | 05:45 PM
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Originally Posted by seymore4
Oem revup air box, z tube, k&n filter used. $75
NGK lfr6aix-11 spark plugs $60
Used basic 5/16" plenum spacer $150
Uprev tuner version $550 (so you can adjust it yourself in the future and not pay out again)
Long tube headers $500
Used car back $700 brand is irrelevant
Rear dif from a 6MT with oem vlsd of Craigslist $150
Apexi exv n1 coil overs $1000
Wheel spacers $200
Transgo installed $700

Should be right at $4000 and will really bring her to life
ok thanks alot how much rwhp should i expect if i went with this setup
 
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Old Jul 6, 2012 | 05:51 PM
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Originally Posted by seymore4
I would like to see some kind of proof of this extra 10 whp you can make by tuning on 100 octane. 1 it's impractical since you'd have to pretty much completely empty the tank then refill with only 100 to use it, 2 you would have to get a completely different dyno tune with that fuel to effectively use it, and 3 a stock non revup VQ35DE is
No where near capable of utilizing it. Maybe if you threw in some hi comp pistons and such we'd talk, but EVERYTHING I know about this engine is leading me to call BS on this one
If you take a look at my sig, it should be obvious to you that my experience in any of this is with a revup motor, which made 215 to the wheels stock. 30-40 hp gain for a non-revup to about 250 to the wheels does not seem unreasonable.

And if you really want to nitpick -

Originally Posted by seymore4
Oem revup air box, z tube, k&n filter used. $75
NGK lfr6aix-11 spark plugs $60
Used basic 5/16" plenum spacer $150
Uprev tuner version $550 (so you can adjust it yourself in the future and not pay out again)
Long tube headers $500
Used car back $700 brand is irrelevant
Rear dif from a 6MT with oem vlsd of Craigslist $150
Apexi exv n1 coil overs $1000
Wheel spacers $200
Transgo installed $700

Should be right at $4000 and will really bring her to life
Good luck finding true long tube headers for $500
 

Last edited by dofu; Jul 6, 2012 at 05:55 PM.
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Old Jul 6, 2012 | 05:52 PM
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Originally Posted by Sufiballer8
ok thanks alot how much rwhp should i expect if i went with this setup
Honestly around 250-260 on a dynojet, but the car will be a completely different beast. Way more responsive, powerful, and agile. PM me if you need help finding the parts. Also with the exception of the transgo install those prices were assuming you did the labor yourself
 
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Old Jul 6, 2012 | 06:06 PM
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Originally Posted by seymore4
Honestly around 250-260 on a dynojet, but the car will be a completely different beast. Way more responsive, powerful, and agile. PM me if you need help finding the parts. Also with the exception of the transgo install those prices were assuming you did the labor yourself
alright time to start saving up
 
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Old Jul 6, 2012 | 06:09 PM
  #21  
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1. OP has a non revup engine so I was gearing my advise towards him.
2. A bone stock g35 should make around 225-235 on the dyno from what I've seen, so I was basing my numbers on that. Never seen one make 215
3. Unless its built I still do not believe you made 15hp just from 100 octane fuel. Post up dyno sheets and prove me wrong
4. You can find used long tube headers for $500, sure they're not exactly growing on trees but deals are to be had. I quoted $150 for the dif/pumpkin because
That's exactly what I paid for one 2 weeks ago off craigslist
 
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Old Jul 6, 2012 | 06:16 PM
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Originally Posted by seymore4
I would like to see some kind of proof of this extra 10 whp you can make by tuning on 100 octane.
There's a local member here who has a DE w/bolt-ons and a tuned map for 100 octane. Don't know the results in detail but it did help. I do however agree that running that mixture regularly is pointless unless it can be found at many places within a certain area, which is unlikely.
 
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Old Jul 6, 2012 | 10:22 PM
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Originally Posted by seymore4
1. OP has a non revup engine so I was gearing my advise towards him.
2. A bone stock g35 should make around 225-235 on the dyno from what I've seen, so I was basing my numbers on that. Never seen one make 215
3. Unless its built I still do not believe you made 15hp just from 100 octane fuel. Post up dyno sheets and prove me wrong
4. You can find used long tube headers for $500, sure they're not exactly growing on trees but deals are to be had. I quoted $150 for the dif/pumpkin because
That's exactly what I paid for one 2 weeks ago off craigslist
There are obviously a lot of things you have never seen before, including a somewhat low reading dyno. Wait, don't tell me - you don't see any point in having a low reading dyno either. The type of fuel you use can make a huge difference in power if you are tuned for it.

Originally Posted by herrschaft
There's a local member here who has a DE w/bolt-ons and a tuned map for 100 octane. Don't know the results in detail but it did help. I do however agree that running that mixture regularly is pointless unless it can be found at many places within a certain area, which is unlikely.
Yes, 100 octane is too expensive to run for daily driving. It's for track days. There's no point in building a car unless you are going to have some fun with it at least once or twice.

Originally Posted by seymore4
Oem revup air box, z tube, k&n filter used. $75
NGK lfr6aix-11 spark plugs $60
Used basic 5/16" plenum spacer $150
Uprev tuner version $550 (so you can adjust it yourself in the future and not pay out again)
Long tube headers $500
Used car back $700 brand is irrelevant
Rear dif from a 6MT with oem vlsd of Craigslist $150
Apexi exv n1 coil overs $1000
Wheel spacers $200
Transgo installed $700

Should be right at $4000 and will really bring her to life
BTW, your math sucks as well. Add install and tune, and you are looking at well over $5k with this list of parts.
 

Last edited by dofu; Jul 6, 2012 at 10:29 PM.
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Old Jul 8, 2012 | 02:54 PM
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Originally Posted by Sufiballer8
Im thinking of getting some of these mods or getting these mods how much horse power should i expect
I have a 2004 5AT g35(280 hp) non rev up

Mods:
Stillen intake+Ztube
5/16 motordyne iso thermal spacer
Unorthodox racing pulley
Ark Grip Exhaust w/Motordyne Art Test pipes
Osiris Ecu Tunning

also if you can give a mod by mod break down on how much horse power i should actually expect that should be nice
Just to ask, what purpose will these mods serve? Occasional Track days, 1/4 trips, top end? Make sure you do your research with the exhaust selection. Some of them are loud and resonate from 2000-3000 rpm - .
 
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Old Jul 8, 2012 | 04:01 PM
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Originally Posted by YOG35C
Just to ask, what purpose will these mods serve? Occasional Track days, 1/4 trips, top end? Make sure you do your research with the exhaust selection. Some of them are loud and resonate from 2000-3000 rpm - .
na just street driving for sound/performance
 
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Old Jun 17, 2013 | 03:39 PM
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new guy..pound away at will....

This isn't an all or nothing game.
How about a dyno to establish baseline HP/TQ??

Then say kinetics/fast intentions HFCs, a clean OEM air filter (there is an CAI HP thread on this site)
And an OSIRIS flash tune with a another new dyno to see what you got for your money??

Then enjoy the car for a time??

Then maybe a transgo kit and say..3.9 gears to liven it up??

Then enjoy the car for a time??

PS: Do all the work yourself whenever you can. You'll save money and get more out of the mod experience...really.

And you may find that you want to do a few HP mods, then maybe springs or suspension/handling mods instead....
 
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Old Jun 17, 2013 | 06:46 PM
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You do realize you responded to a year old thread right?
 
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Old Jun 17, 2013 | 08:13 PM
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Stay away from ARK!

https://g35driver.com/forums/showthr...47#post6757147
 
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Old Jun 17, 2013 | 08:28 PM
  #29  
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Originally Posted by Blue Dream
You do realize you responded to a year old thread right?
yes I was ..oops got caught up in the read...

I could have started a new thread??

I was initially searching OSIRIS flash tunes..

I see guys getting jumped for not researching and starting new threads..then praised for reviving old threads instead..then told not to post at all....dunno yet..we'll see.

Aside but not so aside, there sure does seem to be a lack of real dyno results for mods on these cars. It's like a lot of folks are throwing $$ at these things without knowing the HP/TQ results. a List of best HP/$ mods. I know some mods play off of others, but there are a lot of HP claims with no proof for some. For instance the whole CAI mod..and dyno results in this forum shows what little you get for your $.

My initial mods list was long (like the OPs) and based of what I saw others doing, Now I've boiled it down to this listing above. The original post mistake is really not important. It's my post now I guess...I'd like to see 15+ more HP (295) at the flywheel with these mods I've listed....If I would get more that would be good too..i just want to grab the biggest HP mods for the $ for strictly DD.

So does my listed mods in my response above look good?

HP:
1. kinetics/fast intentions HFCs,
2. a clean OEM air filter (there is an CAI HP thread on this site)
3. And an OSIRIS flash tune

Performance
1. A trans go kit
2. 3.9 gears

Handling
1. H&R Sports or Tein S springs
2. REAR Swaybar

Then Call it Done.
 

Last edited by shurur; Jun 17, 2013 at 08:34 PM.
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Old Jun 17, 2013 | 10:37 PM
  #30  
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Originally Posted by dofu
A million. OK, not that much. Probably about 20 or so additional horses to the wheels. If you get a test pipe or HFC, you should be able to put down about 10-15 more after the tune.

IMO, pass on the Stillen intake and get a revup intake box w/ a good filter, and skip on the pulley and get the Transgo kit and higher final drive instead.

And don't forget to get a map for 100 octane gas. You can make another 10-15 on 100 if you get tuned for it.
Higher Final Drive??? Why would you need that? He's not FI
 
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