Jdm720 Posted August 14, 2012 Report Share Posted August 14, 2012 I'm curious... How fast have you guys gone on your stock engines..? I mean besides any exhaust modifications... I've been hearing most 720's going about 70-75 comfortably, but how fast if you give it a little push..? I was coming home down the 105 eastbound the other day and decided to floor it, and I hit 90 easily, but then I hit traffic... I plan on doing an engine swap once I get my other car done, so I'm gonna push it all the way just to see how fast this thing can really go on the stock engine right before the swap :angel: (after I get my desired stance with kung fu grip on the road of course) Quote Link to comment
flatcat19 Posted August 14, 2012 Report Share Posted August 14, 2012 I have done 83 in my stock 521(L16, 4 spd, 4.375 gears) according to my GPS speedo. Quote Link to comment
Jdm720 Posted August 14, 2012 Author Report Share Posted August 14, 2012 That reminds me, I was going off of my GPS too.... Seems pretty accurate though, comparing it to speedometer indicated speeds in a few other cars I've been in.. Quote Link to comment
poor-mans-720 Posted August 14, 2012 Report Share Posted August 14, 2012 I did 74 MPH!!!! had everything i had in my right leg pushing the pedal down.... Completely stock motor, 10" lift, 33" swampers, 4.37 gears, low on gas and empty truck bed. maybe, might have been on a slight down hill with a good tail wind. I hit the bottom of the hill and it started to slow, 73-72-71-70... 65 held steady!!! but my truck is tall... super-super tall!!! 1 Quote Link to comment
Jdm720 Posted August 14, 2012 Author Report Share Posted August 14, 2012 That height surely factored into it... Quote Link to comment
poltroon Posted August 14, 2012 Report Share Posted August 14, 2012 i got up to 68 in my 1300, downhill, breeze in the tailpipe... never was able to reproduce that speed. all the rest of the time, high 50's was the max. Quote Link to comment
Jdm720 Posted August 14, 2012 Author Report Share Posted August 14, 2012 Oh another question, what were your RPM's...? When I hit 90 I believe I was more or less around 4500.... I wasn't exactly focused on my tiny stock tach..... Quote Link to comment
metalmonkey47 Posted August 14, 2012 Report Share Posted August 14, 2012 I've done about 65 in my 620. Nothin but a header and a weber. And 4 speed of course :rofl: L20B screamin the whole way. I have no tach, so screaming is the best you get :P 1 Quote Link to comment
flatcat19 Posted August 14, 2012 Report Share Posted August 14, 2012 No tach for me either. My foot was not to the floor yet...5,000 RPM's. Guess. Quote Link to comment
chester Posted August 14, 2012 Report Share Posted August 14, 2012 I would love to join in on this, but mine isn't stock. Screw it! On the way to Canby this year, I had to catch up to Farmerjoe cause he decided to go on off on his own with about 10 miles before the exit we needed. So I stepped on it kept it in 5th and by the time I caught up to him the speedo was pointing at H of MPH on the 620 speedo. I was still going to but had to slow down. I am running a L20 with peanut head, mild cam, weber. 2.25" exhaust, 4.11 gears, and about 500 miles on a rebuild. I think I can Safely say I was doing over 100. 1 Quote Link to comment
Ratty260z Posted August 14, 2012 Report Share Posted August 14, 2012 If you count a stock L28 out of a 280zx with SU's and a Header and 4 speed as stock I got up to 125mph in my 260z, I'm sure I could have gotten a bit more but it was getting scary the road was a bit wavy. I did have a front air dam and spoiler which helped A LOT. Quote Link to comment
Jdm720 Posted August 14, 2012 Author Report Share Posted August 14, 2012 I would love to join in on this, but mine isn't stock. Screw it! On the way to Canby this year, I had to catch up to Farmerjoe cause he decided to go on off on his own with about 10 miles before the exit we needed. So I stepped on it kept it in 5th and by the time I caught up to him the speedo was pointing at H of MPH on the 620 speedo. I was still going to but had to slow down. I am running a L20 with peanut head, mild cam, weber. 2.25" exhaust, 4.11 gears, and about 500 miles on a rebuild. I think I can Safely say I was doing over 100. Hmmm, not too shabby :thumbup: If you count a stock L28 out of a 280zx with SU's and a Header and 4 speed as stock I got up to 125mph in my 260z, I'm sure I could have gotten a bit more but it was getting scary the road was a bit wavy. I did have a front air dam and spoiler which helped A LOT. Yea things start turning into a blur around 120-130 for me... Fastest I've gone so far on the freeway was 140 though :geek: I've heard those 260's are pretty fast completely stock.... Quote Link to comment
Ratty260z Posted August 14, 2012 Report Share Posted August 14, 2012 Yea things start turning into a blur around 120-130 for me... Fastest I've gone so far on the freeway was 140 though :geek: I've heard those 260's are pretty fast completely stock.... I just now realized this was posted in the 720 subforum haha, but yeah I drove it the night I checked it out and it was pretty quick for being stock and having sat forever in a field. Quote Link to comment
zed Posted August 14, 2012 Report Share Posted August 14, 2012 I don't romp on my trucks. Stock L18 I never went faster than 70mph. Modded now, I cruise at 75 with a trailer Quote Link to comment
datzenmike Posted August 14, 2012 Report Share Posted August 14, 2012 '74 710 sedan with L18 and 25K original miles, on way home from Canby in '11. Has MPH speedometer that year and read 90 on a very slightly up hill. It's also an automatic for those who think they suck on the highway. Quote Link to comment
P.Rubber Posted August 14, 2012 Report Share Posted August 14, 2012 86 720, I hit 85 stock z24 on the 205 Quote Link to comment
Amerikilla Posted August 14, 2012 Report Share Posted August 14, 2012 I can do 90-100 mph in my NL320 with an L18, Solex Mikuni 40mm sidedraft, header, 2.5" exhaust, dogleg 5-speed, and 3.89 rear gears. That is around 4000 rpm. Word. 2 Quote Link to comment
Meticulous Posted August 14, 2012 Report Share Posted August 14, 2012 85 plus in my stock 210 with A15 and 5 speed she was still pulling with the needle pinned but i let off cuz she fragile. Quote Link to comment
720momo Posted August 14, 2012 Report Share Posted August 14, 2012 I hit 100 on my stock 85 720 st. Quote Link to comment
poor-mans-720 Posted August 15, 2012 Report Share Posted August 15, 2012 Damn.... All you triple digit ppl!!! :) I would be lucky to do the speed limit... you'll know its me, see me in the slow lane with the hazards on!! LZ build in the progress though... Quote Link to comment
jrock4224 Posted August 15, 2012 Report Share Posted August 15, 2012 521 l16 stock with morph 720 5sp.....86 tops... although its takes a long time and a little tail wind....for blue lake i pretty much ha d it to the wood down and back...really suprised i dont have a window in my piston Quote Link to comment
datsunaholic Posted August 15, 2012 Report Share Posted August 15, 2012 Mostly Stock '76 620 King Cab, with a 4-speed... I've done 85. Had lots left. Nothing but a Weber and a matchbox dist, but it'd do that with the Hitachi. Trans and rear gears are OE stock stuff. I've had my 520, with a J15 and a 4-speed up to 75. I think the rear gears aren't original though. I think it has 4.375s in it. Dave (Bre620) thought I was nuts. My 4X4, I hit 80 once trying to keep up with Icehouse and friends... I think I had the 5-speed in by then, but I don't know for sure. Quote Link to comment
DAT510 Posted August 15, 2012 Report Share Posted August 15, 2012 No tach in 510, around 75 MPH L20B screaming with 3 speed auto :lol: 45mph in J13 521 cause it feels like it's gonna blow up :huh: 0mph with a L28 :sneaky: Quote Link to comment
Dead91silvia Posted August 15, 2012 Report Share Posted August 15, 2012 heh heh... everyone thinks I'm laughs when I tell them... My dads (now mine) 720 I got to 85 ish once, going down hill. However, we later found out that the trans that was in it had the wrong spedo gear... I did the math, I go it to 105-110mph... down hill and that took about a mile! haha!!! This was in high school, about 1998. It will get to about 75-80 on the flat. But she dont like it much! 65mph is happy for the little truck... Oh, the truck has been and is still stock under the hood, L20 with stock Nissan carb and original exhaust and 5 speed... 200+k on the OD... Quote Link to comment
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