89_trailboss Posted February 10, 2007 Share Posted February 10, 2007 any power/milage difference when you advance/retard the timing on the VG30's? if so, what do you guys like? Link to comment Share on other sites More sharing options...
88_Pathy Posted February 10, 2007 Share Posted February 10, 2007 I set mine at +19 and it runs great. It feels more peppy down low. Link to comment Share on other sites More sharing options...
89_trailboss Posted February 10, 2007 Author Share Posted February 10, 2007 cool. have a problem in my high end tho. happens on the hiway at 4500+ I get a hesitation. doing some things to it this weekend and ill see if anything changes. anyone else have any opinions they want to throw in? Link to comment Share on other sites More sharing options...
Slick Posted February 10, 2007 Share Posted February 10, 2007 (edited) 19 is rather high.... dang. factory is 15 degrees. before she was at 13/14.... and lugged. i have her at 15 now and she does good on gas and has good low end power, which is great for towing the boat. if i wanted to race. ida bought a fast car. at 19 degrees, how can your pathy even run CLOSE to good? ah well, different strokes fer different folks i guess. and i think a lot of it is your motor.... some motors run good at 16 degrees, some run good at 15..... play with it and see what suits you. *i found with mini. 15 she likes best. 16/17 was too much and she raced* Edited February 10, 2007 by Slick Link to comment Share on other sites More sharing options...
Guest SuperSon Posted February 12, 2007 Share Posted February 12, 2007 (edited) I thought it was 12 deg???????? :confused: The marks on the HB are 0 / 5 / 10 / 15 right? . Edited February 12, 2007 by SuperSon Link to comment Share on other sites More sharing options...
twotirefryer Posted February 12, 2007 Share Posted February 12, 2007 don't know if the vg30e has a knock sensor, but my vg30i doesn't, you DO NOT want to knock or you can plan on replacing headgaskets, valves...something will go eventually. more timing=more gas mileage, more power. lower timing=you can pee in the tank and it will run. my advice, raise the timing one degree at a time until it pings. then back off one degree. i'm pretty sure 12 deg is where it's supposed to be at. Link to comment Share on other sites More sharing options...
Spooled Posted February 12, 2007 Share Posted February 12, 2007 The VG30E can run well at a wide range of timing settings. My older 87 200SX with the VG30E has a stock setting of 20 degrees before TDC. I actually run it at 30 degrees before TDC and it runs great! On a dyno, it actually gained me 15hp at the wheels. However, the Pathfinder has a lower stock setting, so I wouldn't run anywhere close to 30, but I can see how 19 would feel pretty good. Link to comment Share on other sites More sharing options...
Slick Posted February 12, 2007 Share Posted February 12, 2007 (edited) 15 degrees is the factory timing setting for 90-95 VG30E's. (maybe other years, i don't know)....... maybe... *hunts down her FSM to check* now.. where's that damn page....... -study- *ok, STILL couldn't find it in either manual, but now i remember who said it was 15 degrees. the guy who smogged mini me last year... doesn't mean to say he's right, and she runs like a champ at 15 degrees with no pings at all* *steps aside* ok.... we'll say 12 degrees...... seems to be the consensus. Edited February 12, 2007 by Slick Link to comment Share on other sites More sharing options...
fondo Posted February 12, 2007 Share Posted February 12, 2007 Is changing the timing done by simply rotating the distributor to a desirable mark? Link to comment Share on other sites More sharing options...
Simon Posted February 12, 2007 Share Posted February 12, 2007 "normal" timing on our engines is 15degrees BTDC. Link to comment Share on other sites More sharing options...
jj big shoe Posted February 13, 2007 Share Posted February 13, 2007 Is changing the timing done by simply rotating the distributor to a desirable mark? Yup. Just loosen the 10mm bolt at the base of the dist. and rotate. Link to comment Share on other sites More sharing options...
88pathoffroad Posted February 13, 2007 Share Posted February 13, 2007 Stock timing on a VG30i is 12 degrees. Says so in the FSM. Also, they didn't change cam design until they went to the 3.3. Across the board on all the VG30E's I've seen. Same cams. Doesn't that suck? Anyway, what I was getting at is that seems to indicate to me that you can probably run the VG30i's at 15 and get away with it without a knock sensor. So THAT'S where the extra 8 HP came from!! 86/87 VG30i: 152 HP@5200RPM, 162 TQ@6200 RPM 88/89 VG30i: 145 HP@4800 RPM, 166 TQ@2800 RPM 90-up VG30E: 153 HP@4800 RPM, 180 TQ@4000 RPM Link to comment Share on other sites More sharing options...
Guest SuperSon Posted February 13, 2007 Share Posted February 13, 2007 After setting the timing to 12 or 15 wheres the rpm supposed to be? 800? Link to comment Share on other sites More sharing options...
Simon Posted February 13, 2007 Share Posted February 13, 2007 Stock timing on a VG30i is 12 degrees. Says so in the FSM. Also, they didn't change cam design until they went to the 3.3. Across the board on all the VG30E's I've seen. Same cams. Doesn't that suck? Anyway, what I was getting at is that seems to indicate to me that you can probably run the VG30i's at 15 and get away with it without a knock sensor. So THAT'S where the extra 8 HP came from!! 86/87 VG30i: 152 HP@5200RPM, 162 TQ@6200 RPM 88/89 VG30i: 145 HP@4800 RPM, 166 TQ@2800 RPM 90-up VG30E: 153 HP@4800 RPM, 180 TQ@4000 RPM Just double checked my 95 FSM, and yes, it's 15degrees +/- 2degrees BTDC. So it seems they did advance the timing....and I concur with 88 that the VG30i could run just as well at 15 degrees as the VG30e Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now