Im pretty sure the 07 sedan was still a 3.5L motor. Infact im pretty sure that the G35 was ALWAYS a 3.5L motor. Thus it being a G35 not a G33. Rev-up was a huge change in the motor internals but it was still a 3.5L motor. (They redesigned or strengthened many items and changed the compression ratio from 10.3:1 to 10.6:1 as well as adding dual intakes.)

Changing the gear ratios is a way to change the amount of acceleration you get but what the sprint booster does is effectively tell the ECU that when peddle in not pressed it normal, but as soon as the peddle is depressed give the same readout as if the peddle was 1/4 of the way depressed.

I would be interested to see what it feels like on my baby eventually but right now im concentrating on other mods.

 

LOL! I never said anything about 07 being a bigger motor – of course they are both 3.5L… I said the final drive ratio is 3.692 on the 07 vs 3.359 on the 2003 AT (aka 3.7 vs 3.3) and 3.5 on the MT… additionally, the engines aren’t the same at all – the 03 is a DE and the 07 is an HR (significant difference)... BTW, the rev-up engine doesnt have dual intakes, you are confusing the HR for rev-up (rev-up was still a DE).

The bottom line is – I felt the same thing that the OP felt when I drove the 07 as soon as it came out… I knew the snappy acceleration was not solely attributed to the HR version of the engine – so I checked the FD and sure enough its 3.692 (3.7). I put that FD in my car and got very similar driving feel.

Thanks for the attempt to school me though.

 

Ahhh I was confused when you said 3.7 vs 3.3. Usually when talking cars and someone give a two digit number separated by a period they are talking displacement. And as you stated drive is given by a four digit. I mistook what you were saying and now ... /me stands tall

I stand corrected.

 

if/when you research ring and pinion gears (most commonly referred to simply as final drive, to FD for short), you will find no one references the exact size... it will always be abreviated: 3.3, 3.5, 3.7, 3.9, 4.0 (and now even 4.1)... most people dont even know that 3.3 is 3.357, 3.5 is 3.538, 3.7 is 3.692, 3.9 is 3.917, 4.0 is 4.083 or whatever 4.1 is...

 

 

So, any more impressions of this thing? Sounds like an interesting concept, but $300 may be a bit steep for it, especially if I get an Osiris tune this year.

 

All I know is 95%+ of the people reporting about this mod are new and/or very low post counts (not just here, but my350Z too)… Derek (dsskyline) is the only established member that I can think of that has used this (there might be 1 or 2 others)… Derek is pretty astute, so his review is valid – but I’m suspect of the others only because they arent really active on the boards so I take their reviews with a grain of salt.

 

To be honest just because someone doesnt post doesnt mean they arent knowledgable about cars and so forth. My count is low and i know how to work on cars and a large percentage of my friends are mechanics. Also i see alot of people on here talking about things and having high post counts when their posts are generally mindless babble... So please dont base the validity of someones response on thread count, you never know who is on the other side of the monitor.

 

your last sentence makes my point exactly.

I never implied low post count equates to lack of knowledge (that would be entirely asinine).

My point is; I'm skeptical of someone that posts once or twice (or generally very limited) and it's regarding one subject. A person with low post count has not established any recognition (not to be confused with "knowledge")... There are many people I know in person that I trust their opinion... and there are several that I don’t know in person, but am familiar with out here - I am less skeptical of those that have been around and have been active on the boards... there is much less concern that they have an agenda.

IMO someone that rarely (if ever) posts out here all of the sudden chimes in with a review - and then contributes nothing more to the forum, that’s clearly suspicious.

So, research and acquire info in whatever way suites you... I'll stand by my statement and reasoning.

 

You guys do know that shops that carry these in stock will allow you to "try it before you buy it"...

How many other "mods" out there are willing to let you do this?



I am considering getting one for the drive-by-wire lag our cars has.

Can't find any "used" module on ebay so people are "keeping it"..

 

I'm willing to teach people how to "put the petal to the metal" for a mere $50, save over $200 and get the acceleration you are missing!

 

teach please