+- Madison Motorsports (https://forum.mmsports.org)
+-- Forum: Technical (https://forum.mmsports.org/forumdisplay.php?fid=4)
+--- Forum: Member's Projects (https://forum.mmsports.org/forumdisplay.php?fid=12)
+--- Thread: Project Hatch (/showthread.php?tid=3782)
- Andy - 10-08-2007
Mike Wrote:2080/140 = 14.8lbs/hp... nothing very impressive. Shit, that's worse than a new Civic Si.
MR2=2600+/108-110=~24lbs/whp. Jesus, that's worse than I thought.
- Mike - 10-08-2007
Andy Wrote:Mike Wrote:2080/140 = 14.8lbs/hp... nothing very impressive. Shit, that's worse than a new Civic Si.
MR2=2600+/108-110=~24lbs/whp. Jesus, that's worst than I thought.
Ought to do gearing calculations. I think that explains the equality of Maeng and I at top speed (that's all I'm really concerned about).
At the top of the gear, I'm making 110whp w/ a .96:1 ratio so that comes to 105.6hp to the ground. I'd have to know his exact power at the top of the gear, but I'll also assume his drops off, but not as much (could very well be flawed). If his 108 peak drops to 105 w/ his 1:1 ratio, 105.6=105. Explained!
Now I need to figure out if it's smarter for me to shift in to 5th (silly long gear) at 6500rpms (before the power drops off) or not...
My 5th is .71:1. I think my math is wrong so please correct me...
1/.96 * 6500 = 6770 (my 1:1 rpms at the shift point)
6770 * .71 = 4800 (where the shift will drop my revs to)
At 4800rpms, I'm at about the same power as fuel cut. Sooo I guess staying in 4th until fuel cut will provide the same results as a shift so I might as well save shift time and not do it.
- .RJ - 10-08-2007
Get a good transmission
- Mike - 10-08-2007
.RJ Wrote:Get a good transmission
ITR w/ LSD! New or not new? 1700 or 1200? Guaranteed mint or potentially dealing with idiots?
Edit: Hrm, didn't realize the ratios were the same as a B16 tranny. You know of any difference aside from the optional LSD?
- .RJ - 10-08-2007
Ratios are the same... B16 + OEM ITR LSD ($200)... you'll need the ITR final drive gear off the diff too, but you really dont need a diff.
- Mike - 10-08-2007
I'd like a diff while I'm in there. It's not going to hurt anything.
Why would I need the final drive as well? They're both 4.4.
- .RJ - 10-08-2007
Mike Wrote:I'd like a diff while I'm in there. It's not going to hurt anything.
Its not worth much time on track with the engine you have, and leaving the transmission sealed, assembled as Soichiro intended is a good thing
Mike Wrote:Why would I need the final drive as well? They're both 4.4.
The ring gear from the b16 wont bolt up to the ITR diff - the bolt spacing is different... why? I have no idea.
- Mike - 10-08-2007
Hrmph.
Ok, so anyway I did my math wrong. Apparently 123 w/ 15% parasitic loss = 145 crank hp. That's not half bad!
- Maengelito - 10-08-2007
Mike Wrote:So the hatch received a lot of attention this week: washing, compounding, waxing, vacuuming, and some touchup... I even cleaned the engine bay... 15 years of grime is a HUGE BITCH. She looks great now (compared to how she was). I still need to Line-X the trunk area...
To celebrate the 10+ hours I put in to getting her clean, I picked up a set of Rota Group Ns in flat black w/ a red stripe around the outside. They look snazzy! Unfortunately, one is potatoed, but balances... Not sure if it's worth doing the replacement shit since I'll put at most 1k miles a year on them.
navin Wrote:Project Hatch v.2 > v.1
Razz
i kid i kid.
Mike Wrote:hurray for your show car!
fucking ass, this is mike's thread!
- Mike - 10-08-2007
hey, fuck you! quit shitting up MY thread.
- navin - 10-08-2007
maeng Wrote:fucking ass, this is mike's thread!
:?: :?:
Mike - where did you get your car dynoed at and how much was it if you dont mind me asking..
- Mike - 10-08-2007
dryft, part of the car show, $35.
- Mike - 10-08-2007
hrm hrm hrm <!-- m --><a class="postlink" href="http://losangeles.craigslist.org/wst/pts/443342977.html">http://losangeles.craigslist.org/wst/pts/443342977.html</a><!-- m -->
- WRXtranceformed - 10-08-2007
That's about the cheapest dyno pulls w/ A/F ratios I've ever seen. Nice numbers man, that's a respectable power to weight.
- Andy - 10-08-2007
Mike Wrote:hrm hrm hrm <!-- m --><a class="postlink" href="http://losangeles.craigslist.org/wst/pts/443342977.html">http://losangeles.craigslist.org/wst/pts/443342977.html</a><!-- m -->
Yes Mike, buy it from a random dude that's across the country. That sounds like a good idea. Can I recommend my broker? He's based out of Nigeria.
- HAULN-SS - 10-08-2007
Hrmm..i didnt realize that p/w was with crank power ratios? hrmm x-x(.15) = 230 for the ss = 270crank ~3500/270 = 12.9
neat
- Evan - 10-08-2007
"has never been used" also means deniability they knew it was busted before selling
- navin - 10-08-2007
There are a couple of ITR trans. for sale on honda-tech in the MD/DC/VA area.
- Mike - 10-08-2007
HAULN-SS Wrote:Hrmm..i didnt realize that p/w was with crank power ratios? hrmm x-x(.15) = 230 for the ss = 270crank ~3500/270 = 12.9
neat
well, it doesn't really matter... just as long as you're calculating all p/w ratios with the same figure.
- Mike - 10-26-2007
Just installed some blingin' tow hooks (Benen) and received a new used harness to replace my passenger one that it pretty old.