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Bolt ons plus stuffed turbo whp ?

1696 Views 14 Replies 6 Participants Last post by  lewisrassel
I currently have MXP catback, tein coils /varrstoen rims/ HPS intake/afr gauge. I am looking at buying an mxp down pipe/o2 houseing/test pipe and getting it tuned. Anyone have a similiar setup that could chime in on how much whp they are getting? I know the Arashi hits about 400whp or something at 500 at the crank. I would be happy with 350 at the wheels is this doable with the stuffed turbo ? I had recently sold a g37 and bought one of these and I love look so much more than the G but its a bit slow for me as it currently sits.
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I have a buddy with a BK2 2.0 - he's making around 350-380 to the wheels with a stuffed turbo, custom tune, straight pipe Tomei, true CAI, methanol injection, intercooler
Appreciate it I did some more research and saw people running it up to 400. But I want to play it safe and shoot for the 350ish at the wheels for now till I have the time next summer to pull the engine apart. I got lucky on a deal and got a nice one with 65k miles on it. Guy only drove it on weekends and kept it covered and really clean. I am just in love with the body style and will probably keep the car for a long time.
350 should be easy to do if you have 93 octane or higher available. Maybe 330 on 91 octane or less
From what I've read no around 300 whp and it does not last long seems to run our of breath.
Can't your stock turbo reach 350ish hp?
300 to the wheels is about the max before you risk detonation in the engine. The boost is maxed around 21 psi and timing is limited to 12/14 degrees unless you run meth.
13 rspec - Full bolt ons (cpe catted o2, 2nd cat delete, cpe catback), stuffed turbo, injen intake, alphaspeed custom tune.
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13 rspec - Full bolt ons (cpe catted o2, 2nd cat delete, cpe catback), stuffed turbo, injen intake, alphaspeed custom tune.
Any idea if that is the 20T stuffed turbo with OEM turbine? Also what is the max boost you reach.
Any idea if that is the 20T stuffed turbo with OEM turbine? Also what is the max boost you reach.
Close, it's the 9 blade 22T wheel stuffed turbo with oem ported housing from 3point8. I believe the 20T is used in their bk1 stuffed turbos. 25lbs of boost.
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Close, it's the 9 blade 22T wheel stuffed turbo with oem ported housing from 3point8. I believe the 20T is used in their bk1 stuffed turbos. 25lbs of boost.
Nice stuff man. If its possible where you live you could add some methanol injection or E85 tune. The timing bump from 13 degrees to 18/19 will add another 50hp.
Nice stuff man. If its possible where you live you could add some methanol injection or E85 tune. The timing bump from 13 degrees to 18/19 will add another 50hp.
Thanks!

Thanks! Yes, meth or e85 would be a solid next add. Unfortunately started knocking recently, so in the middle of building the engine.
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Thanks!

Thanks! Yes, meth or e85 would be a solid next add. Unfortunately started knocking recently, so in the middle of building the engine.
Only time I noticed knock was when my spark plug gap was bad or when my injectors were maxed out (logged with tq app). It seems that my 2013 doesn't like to be above 7k rpm. It'll misfire/stutter sometimes and a few times it knocked which is a sound I hate. Now I usually try to shift before 6700 just in case I have a bad tank of gas. No issues below that rpm at all.
I want to play it safe and shoot for the 350ish at the wheels for now till I have the time next summer to pull the engine apart.




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