Eps big bore TB's

gbrettin

I got out to the drag strip too. My best time previously was 13.3 and that was pretty much everything. This weekend I made two passes but had terrible burn outs both times and only got a 13.6 and a 13.3. The car felt like it could get high 12's with a good launch whereas previously 13.3 was about the best it had.

I was hoping to bring back an awesome slip but it is what it is. The track was packed and I got there late.

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denchan350gt

Nice!! I've learned you have to get to the track when it opens the gates to get in runs. Especially if it's a busy track.

Hoping to hit the track Friday or Sat.

My friend just did 12.6 again in his FBO non tuned 7AT 370z on Sunday.

zguynate

I'm interested in these, but I need to think out loud here. Even if you get bigger throttle bodies, would your stock intake holes where the throttle bodies bolt to not still be a bottle neck?

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2009 370z touring w/sports package

gbrettin

Yes, there still is a bottle neck with the manifold but the larger TB's will create more air velocity.

Edit -

The TB's come with a billet aluminum adapter plate that tappers into the stock upper manifold.

Dieselg37s

Hey Guys , those are my Eps throttles on FB and myG37 , I had a hard time getting them to relearn the idle idk what I did wrong if anything at all , my car is an 08 with uprev software . I contact Jeff or Jake ( I forget ) from eps And he told me I need to change some settings in my time before the car would learn to idle . My tuner gave me the run around and this is my daily so i cleaned my stock throttles ( never did before) And it ran so smooth and much better than before so I decided I should leave it alone . I have full bolt ons so idk if that affects anything , at the same time I added blox velocity stack 3" filters , eps did mention something about air velocity idk . I have takeda intakes, m370 manifold , exotic speed headers , kinetix hfc , garage line x pipe mid pipe( custom fitted ) , Megan axle back , z1 clutch fW combo , 4.08 gears .... Sorry for the wall of txt EPS throttles still available btw

V8Killer

So why is nobody talking about this?

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"Punch"

Too much to list and a baby shot of nitrous....

SS_Firehawk

Wouldn't you have to change the pins because we have a right side and left side TB? There is also an issue with the manifold TB inlet not being large enough, we would need a way to smooth that transition. 63 mm is as big as it's going to go on a stock ported upper.

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zguynate

No dyno on these guys yet?

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2009 370z touring w/sports package

ANMVQ

any more info on these guys, thinking about this mod?

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

lj909

Well i bought Dieselg37s and got them installed. I'm trying to get something scheduled with Seb. The idle gets kinda wacky even after idle relearn. Just to much air going in at idle. But other then idle it runs with new life! My butt dyno says more mid range! Once i get over to Seb and get some numbers I'll post them.

As for those 75mm maxima throttles, I'm not sure they'd fit under the bar. And for the wiring, the eps throttles come with an adaptor harness for the one side.

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PW 07 HR350Z R.I.P. Totaled by 82yr old woman
2010 40th Anniversary 370Z

Loges

Subd, can't wait for some numbers on these.

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MOTORDYNE // AAM COMPETITION // KW // SPL // STILLEN // FUJIMURA // POWERTRIX // DYNOSTY // ECUTEK // WORK EMOTION CR2P // Z1 MOTORSPORTS // ZSPEED // EIBACH // DEWLA DEZIGN // SETRAB // TOP SECRET // TOMMYKAIRA // AEROWORKZ // SHINE AUTO PROJECT

Elmo370z

I don't think you will get a definite answer, since the variables from each car will be different. Just because the Tbs flow more doesn't necessarily translate into more power.

Loges

Agreed. Plus tunes, supporting mods, and dynos all differ. But I'm curious to see how much somebody can squeeze out of these with all of the proper pieces in place (ported upper and lower intakes and a good CAI).

I plan to start down this road after I get tuned first. I currently have everything in my signature without any tuning. So I don't want to push things into the danger zone. I'd rather play it safe and tune twice.

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MOTORDYNE // AAM COMPETITION // KW // SPL // STILLEN // FUJIMURA // POWERTRIX // DYNOSTY // ECUTEK // WORK EMOTION CR2P // Z1 MOTORSPORTS // ZSPEED // EIBACH // DEWLA DEZIGN // SETRAB // TOP SECRET // TOMMYKAIRA // AEROWORKZ // SHINE AUTO PROJECT

andy_meng1024

I have the JDM version 80mm TBs on my car. On the driver side it's plug and play. On the passenger side you need to re-wire everything.

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Current: 2015 C200 / 2018 Cayenne / 2012 370z / 2012 C250 Coupe
Gone: 2013 Cayenne / 2004 Cayenne S / 2003 SL55 AMG / 2008 C300 / 2006 350z / 2006 C280 4Matic

juicinjake

your problem is that the car just needs more tuning. i have successfully tuned over half a dozen cars to a smooth idle using these throttle bodies. a lazy tuner will not be able to recalibrate these. you are going to have to tune the mafs. most idle troubles result from a voltage imbalance between the two mafs in the tubes. with ecutek, its easy to work around this bc it has two maf tables, without it, the tubes must be clocked. your tuner really needs to know what he is doing if he is putting on big tbs and intake tubes, or your end results arent going to be as good as they are for other people.