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-   -   Acelleration video, what u think? (https://www.rx7club.com/1st-generation-specific-1979-1985-18/acelleration-video-what-u-think-825034/)

black82gsl 03-09-09 05:59 PM

Acelleration video, what u think?
 
Ok this is my 82 gsl
stock port 12a
Race Beat intake/Holley carb
Header
custom exhaust
Ac removed air pumped removed(basically runs alternator and water pump only)
Race Beat springs with Tokico shocks and struts.
I know every one is going to say something about the rpms I am pulling but thats how I do it lol.
Just wondering if its as fast as it should be with this stuff on it. Had 2 people in the car also(wich I can really tell a difference by my self)
First parts in a straight away and the rest is mostly going threw some curves.
Here ya go,
http://s58.photobucket.com/albums/g2...cture015-1.flv

blackdeath647 03-09-09 06:30 PM

that looks about right, yeah the revs is overkill, stock ports don't really have much (if any) power gain after 6.5K rpm...but like you said, that's how you do it.

black82gsl 03-09-09 06:31 PM

Photobucket seems kinda crappy heres another link
http://vids.myspace.com/index.cfm?fu...deoID=53815431

black82gsl 03-09-09 06:32 PM


Originally Posted by blackdeath647 (Post 9030251)
that looks about right, yeah the revs is overkill, stock ports don't really have much (if any) power gain after 6.5K rpm...but like you said, that's how you do it.

Yeah I knew some one would say something........seems to be way slower if I shift that low though? Oh,well.

blackdeath647 03-09-09 06:55 PM

you have mechanical secondaries, or are they still controlled by the vacuum? if they still have vacuum control, you might be able to take care of the slow feeling with mechanical ones. i like it better simply because you have more control.

black82gsl 03-09-09 08:08 PM

mechanical,I had a bunch of people ripping on the mechanical set up though.Oh,well its staying mechanical it works.

orion84gsl 03-09-09 08:11 PM

It doesn't matter as long as YOU like the mechanical secondaries. They are far superior to the vacuum operated setup anyway. With the mechs you decide when they open. What was your top speed on that run?

black82gsl 03-09-09 08:40 PM


Originally Posted by orion84gsl (Post 9030503)
It doesn't matter as long as YOU like the mechanical secondaries. They are far superior to the vacuum operated setup anyway. With the mechs you decide when they open. What was your top speed on that run?

I wish I knew,gay ass 85mph speedo! I figure I am hitting about 90 when I shift to fourth gear......I would say over 100. I did a top speed calculator with and it says 135 top speed but I know I wasn't going that fast. That dam road was bumpy as hell my girl couldn't hold the camera still and the camera mount I have is for auto crossing so it points out the window so I couldn't see the speedo on it.

Super82 03-09-09 09:28 PM

@ the mechanical secondaries-I totally agree, except he is using a holley. I haven't got any experience with mine but everybody I talked to said the vacuum secondaries on the holley are far better, and making them mechanical will hurt. The secondaries on a holley are tuned for performance and are adjustable. Some food for thought, I'm anxious to try the difference myself.

Jeezus 03-09-09 10:31 PM

Your clutch needs work I believe. Overall, you are fairly quick.

mazdaverx713b 03-09-09 11:02 PM

accelerates well. looks to have a third gear grind... also sounds like you have bad rear wheel bearings. as far as the powerband is concerened, anything over 7K is not good for the engine as the apex seals can cause chattermarks on the housings. if anyting on a stockport with the "heavy" rotors 7200rpm max. either way, i enjoyed the video.

blackdeath647 03-09-09 11:21 PM


Originally Posted by Super82 (Post 9030710)
@ the mechanical secondaries-I totally agree, except he is using a holley. I haven't got any experience with mine but everybody I talked to said the vacuum secondaries on the holley are far better, and making them mechanical will hurt. The secondaries on a holley are tuned for performance and are adjustable. Some food for thought, I'm anxious to try the difference myself.

you're right, i read right over that, i apologize :)

black82gsl 03-10-09 07:28 AM


Originally Posted by Jeezus (Post 9030905)
Your clutch needs work I believe. Overall, you are fairly quick.

Yeah I know since I put the stuff on it started to slip!

Originally Posted by mazdaverx713b (Post 9030990)
accelerates well. looks to have a third gear grind... also sounds like you have bad rear wheel bearings. as far as the powerband is concerened, anything over 7K is not good for the engine as the apex seals can cause chattermarks on the housings. if anyting on a stockport with the "heavy" rotors 7200rpm max. either way, i enjoyed the video.

That noise from the rear u hear is my crappy right rear caliper it is froze up(getting new one)so the pads just sit there and chatter around and make that dam noise! I thought it was a warped rotor at first so I put on all new brake pads and that rotor and the right rear piston in the caliper wouldn't move!
And it has always had a grind into third gear ever since I got it.
And actualy at the end of the video if u listen u will hear the engine running on one rotor! Got it home and the front rotor had 225psi and the rear rotor has 0psi compression!!! Got a new motor waiting any way just waiting for that one to finally go, it had 150,000 miles on it and the way I constantly beat it I am surprised it last as long as it did! Only gay thing is I just changed the oil that morning.....what a waste!

85TIIDEVIL 03-10-09 07:54 AM

Dammmm 225 that's threw the roof... That can't be right.

black82gsl 03-10-09 09:19 AM


Originally Posted by 85TIIDEVIL (Post 9031604)
Dammmm 225 that's threw the roof... That can't be right.

I dont know I put a compression tester on there and thats what it said? Whats it supose to be?

80's old school 03-10-09 10:51 AM

I know on my 80 with a 4 speed, 7000 RPM = 120 MPH. Seems like you were close to 7000 when you were in 4th. (BTW, my 80 has the "faster" speedometer)

DivinDriver 03-10-09 11:44 AM


Originally Posted by 80's old school (Post 9031868)
I know on my 80 with a 4 speed, 7000 RPM = 120 MPH. Seems like you were close to 7000 when you were in 4th. (BTW, my 80 has the "faster" speedometer)

Tire size is crucial, and I'm fairly sure the old mech speedos are not real accurate up around the top. I've got to do calcs on mine, but on last weekend's drive to a photoshoot, I was showing ~90mph indicated at 4000 RPM in 5th, on stock-size tires. Based on the behavior of other traffic, I think that's a bit high. General traffic speeds on the 10 around Fontana can run high on a weekend, but I don't think that high - - I was only slowly overtaking the geenral flow, by maybe 5mph.

I have a '79 speedo, and I'm pretty sure the sender gear is incorrect to the application. I had a proper '79 gear for it, but cannot recall if it got transferred when I changed the trans out, around 15 years ago, or if it went back on the core.

Was one of those "Sunday evening, gotta have it running for Monday morning" swaps.

black82gsl 03-10-09 11:47 AM


Originally Posted by 80's old school (Post 9031868)
I know on my 80 with a 4 speed, 7000 RPM = 120 MPH. Seems like you were close to 7000 when you were in 4th. (BTW, my 80 has the "faster" speedometer)

I want one! I saw one in the junk yard with one but doesn't look like it will fit? I have had it around 6k in 5th gear on the highway...whatever that is

DivinDriver 03-10-09 12:01 PM

Based on ratio calcs with my stock tires, 4000rpm in 5th should be 85mph... so my speedo is reading 5mph high at that speed. Not too terribly bad; 5.8% error.

With stock 185/70-13 tires and stock 3.909 rear gearing, and a 5-speed, 7000rpm should equate to:

Gear Speed
1st 33mph
2nd 55mph
3rd 86mph
4th 123mph
5th 149mph

6000rpm in 5th gear (again, stock-size tires) is 128mph

black82gsl 03-10-09 12:21 PM

I am running 205/60/13"s wich is a 22.69" diameter tire.

80's old school 03-12-09 07:19 AM


Originally Posted by DivinDriver (Post 9032019)
Tire size is crucial, and I'm fairly sure the old mech speedos are not real accurate up around the top. I've got to do calcs on mine, but on last weekend's drive to a photoshoot, I was showing ~90mph indicated at 4000 RPM in 5th, on stock-size tires. Based on the behavior of other traffic, I think that's a bit high. General traffic speeds on the 10 around Fontana can run high on a weekend, but I don't think that high - - I was only slowly overtaking the geenral flow, by maybe 5mph.

I have a '79 speedo, and I'm pretty sure the sender gear is incorrect to the application. I had a proper '79 gear for it, but cannot recall if it got transferred when I changed the trans out, around 15 years ago, or if it went back on the core.

Was one of those "Sunday evening, gotta have it running for Monday morning" swaps.

I should take my GPS and really see what the actual speedo reading is. Hey Glen, if you were driving on the 10 at "only" 90 around Fontucky, why were you NOT getting run over???!!!

Only in California can you be driving on the freeways at a leisurely 85 MPH and get passed by a cop!!!

cmanns 03-12-09 07:47 AM

^Not true in cali you can be on the wrong freeway and get snagged, luckly I've had zero tickets still =D

What I learned is to keep with the pack, but let people still glide by and if they arnt fall back slowly, lets the cops choose them as bait instead of you, then again I have a bright red loud fc so I try to keep lower

Yeah your clutch was slipping alot, in the few tiems of me fucking around in a stick shift I've never herd that sound, I had tons of fun WOT'ing a v6 nissan truck hehe it's tranny shifted like delicious butter. No need to hate on me hardly using a stick nobody in my damn family drives stick, and I havent tranny swapped the fc yet :P

black82gsl 03-12-09 08:07 AM


Originally Posted by cmanns (Post 9037597)
^Not true in cali you can be on the wrong freeway and get snagged, luckly I've had zero tickets still =D

What I learned is to keep with the pack, but let people still glide by and if they arnt fall back slowly, lets the cops choose them as bait instead of you, then again I have a bright red loud fc so I try to keep lower

Yeah your clutch was slipping alot, in the few tiems of me fucking around in a stick shift I've never herd that sound, I had tons of fun WOT'ing a v6 nissan truck hehe it's tranny shifted like delicious butter. No need to hate on me hardly using a stick nobody in my damn family drives stick, and I havent tranny swapped the fc yet :P

Yeah the clutch sucks getting a new one when I put new motor in. I think my car would be slow and no fun with an auto! And the tranny is 27 years old! It has always ground into third......one day get a different tranny but I am more worried about getting the new engine in.

cmanns 03-12-09 08:12 AM

My bro has a 79SA auto (Ghey) it's red ext/blk inter like my FC hehe, and its auto; like twins. Well for having a old ass 12a it looked pretty fast, I wasnt in the car though (It's non op, was just moving the cars for a bit)

Auto really isn't THAT bad, I can't wait to have a stick and will never buy a auto (FC was given to me so...) the fc's auto has a pretty locked gear you can slide easy in that gear, only goes 30 or so though

Oh shi- you got a 12a too :) she ran strong in his car till he rreversed the batt and blew the fuel pump out, my fc has had more issues though

DivinDriver 03-12-09 10:23 AM


Originally Posted by black82gsl (Post 9032115)
I am running 205/60/13"s wich is a 22.69" diameter tire.

Based on that tire size:

Code:

Gear      6000      7000
 1st      28          32
 2nd      46          54
 3rd      72          84
 4th      103        120
 5th      125        146



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