Toymods Car Club Inc: Tech & Conversions => 1JZGTE *Safe* Rev Limit??

Toymods Car Club
www.toymods.org.au

F.A.Q.

Home

Members

Toymods » Tech & Conversions » *1JZGTE Safe* Rev Limit?? Show:** Today's Posts :: Show Polls Email to friend

Author

Topic

Pete
Regular

Location:
gold coast
Registered:
May 2002

1JZGTE Safe Rev Limit??	Sat, 19 April 2003 09:51

What sort of repeated RPM's do the stock 1JZGTE bucket and shims start to come adrift?? [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 10:32

Pete, the shims tend to pop out with lift rather than rpm alone. The 2JZGTE boys stateside are using std lift (~8.3mm) at up to 9000 rpm and not coming to grief. Have a chat to Lance from www.t04r.com. Most of the camshaft guys from Japan only recommend a shim under bucket setup if cam lift is more than 10mm. Jun sell a kit but they want a kidney and liver for it. You'll want to upgrade your valve springs to get those rpm. I just used some Gen 3 3SGE buckets (Toyota Part No 13751-88460), custom retainers and some Isky springs. The shims are some 2TG items. You could make the retainers to hold any shim you wanted really, so you could use some more readily available motorbike ones (eg Kawasaki) if you wanted. [Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 10:53

Mr opinion: What is the rev limit for your engine??? 9000...mmmmm. Sounds like a bit of me. When does valve bounce start on stock springs?? BTW: Did you get a P/S pump?? I Emailed you. The PF no reply system sucks!!! [Updated on: Sat, 19 April 2003 10:56] [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 11:14

Pete, I'll run the stocky to 7500 (average piston speed of roughly 4000 ft/sec). Apparently rev cut on the 2JZGE ECU is 7300. Looking for 85-9000 with the grunter, but will have forged pistons ± longer rods. You buggers with the 1Js have berserk rod ratios so you guys can go off! I think Nick posted some average piston speeds for the 1J on PF and suggested 9500 rpm represented an average piston speed of 4000 ft/sec! Not sure where valve bouce happens but I'd really recommend some beefier valve springs. You won't believe what car mine are out of! I'm actually writing a little blurb about the head mods required to run shim under bucket for Ed's website with a lot of pics. He should have it in the next day or 2 and he'll post it up soon after. Thanks for the email about the PS pump (I stupidly deleted it and couldn't email you back to say thanks but no worries)....I overhauled mine in the end, got an underdrive crank pulley made and added a cooler. Hopefully back to the dyno to finish the job this week some time. [Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 11:25

Underdrive pulley = RICER (first actual performance enhancing mod) Who down your way is tunning your car? Please say you, a laptop and 6 hours of free lambda time. [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE *Safe* Rev Limit??

Sat, 19 April 2003 11:49

Pete wrote on Sat, 19 April 2003 21:25

Underdrive pulley = RICER

At least I haven't had it anodised some gay color. Get this - I needed some bonnet pins for the car so I went to Autorice out of desperation. The salesman there tried to sell me some FAKE ones. I was a little perplexed. They came with their own little roll of double sided adhesive tape. I bought real ones for half the price the next day.

I'm not tuning it. I'm happy to have someone tune it for me. I got it started easily enough, but if I did the tune, it would take way longer than 6 hours. This guy has pretty much got it done in less than 2. There's about 20 mins left to do. 6500, 7000 and 7500 rpm fuel maps and some sweeps for ignition and it's done.

[Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 12:00

PS have you seen this? Someone got nasty on a 2JZGE and did the BIG single thing to it and custom intake/plenum. [Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 12:00

That is pretty goddamn funny. What do you think CAMS would think when they scrutineer the car. [Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 12:09

What does the Dizzy run off on the GE, it does not look cam opperated. Is it off the belt?? Does the dissy stick in the head?? Do they have the Crank angle sensor mount in the oil pump still?? I'm thinking of buying a 2JZGE halfcut or motor/box combo. My mate wants a 2nd Gen W58. This is the only way of getting one for sure. [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 12:09

I think they'd just take me out back and shoot me. A few years ago FFCC ran a twilight sprint. Of course, there were the obligatory idiots that had to turn on their neons and foglights. They were initially cautioned, but repeat offenders (!) were booted off. The twilight sprint is a standard thing now at the end of the year and the event director makes a special point of saying that people running neons etc will be banned. Dizzy runs off the exhaust cam - there is a gear there. I'll post a pic in a couple of minutes. Dizzy sticks out the head. No crank angle sensor at all, but the 97 onwards motors are distributorless, so they run the crank angle sensor and cam angle sensor. Crank AS is on the oil pump assembly [Updated on: Sat, 19 April 2003 12:12] [Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 12:13

FFCC = Fast and Furious Car Club???? Black Civic's with Green Neon glow from the underbody... [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 12:21

hehehe.......Ford Four Car Club (who are a reasonably hardcore bunch), but it who knows where these ring ins came from! Here's a pic of the 2JZGE head. They're the big lump sticks. [Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 12:28

Where do you get big wriggle sticks for the GE from?? Worked NA isn't really a common option on a 2JZ?? What sort of Ign pickup do they have hiding inside that dizzy, how did you go interfacing it with the ECU?? [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 12:41

The same place you'd get big sticks made for any engine. There's a guy down here called Clive who runs his own business (Clive Cams) who used to work for Wade Cams for many years. He did mine - basically he welded the lobes and ground a new profile on to the bigger lobes. Unfortunately, it's not a cheap process, but it comes out favorably when compared to importing cams from the US from Crower, or getting JUN ones from Japan. The profile itself is some silly thing with about 11mm lift and 260 degrees duration at 50 thou lift (304 advertised). Wade Cams would also be OK and the other mob (close to you too) is Tighe Cams in Qld. The dizzy has magnetic pickups. It has one crank spike and 12 ref spikes per revolution. It's just like a 4AGE/3SGE dizzy and was really easy to setup with the Motec. The coil is good enough for standard NA work. [Updated on: Sat, 19 April 2003 12:42] [Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 12:53

Ahh. I thought they may have been billet cams.$$$$$ I have never had any real luck with regrinds. They always seem to wear prematurely. Hey maybe ******D CAMS here on the coast are crap. What sort of power are you getting out of the engine now?? [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 13:08

OK, at the moment the engine is internally standard. It has the ITBs, mandrel bend headers and the Motec. At 6000 rpm, it put down 133 rwkW, but power still hadn't peaked....the power steering pump blew at 6500 and saw 133 again but only at 70% load so there is clearly still a bit left. Torque peaked at 5000, but there was only a 5% reduction by 6000. Paul (the tuner) suggested that this indicated to him that power should peak somewhere around the 6500-7000 mark. The torque curve seemed relatively flat from about 3500 onwards. I'm a bit of a dyno skeptic (they're really only a tuning instrument IMHO) so I'm not sure what that means. Stock NA Supras (is a pod filter a performance enhancing mod?) they have had there put down about 105-110 rwkW so it suggests that the ITBs and exhaust have had a positive effect. As soon as it is all done, I'll have a dyno sheet up for perusal. [Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 13:34

I think what it needs is your custom motor and loads more revs!!! 9000 RPM should get those roller spinning to BMW M3 specs. Were you present when he was tunning?? If so what equiptment does he use? How does he detect knock?? I want to know, Cause my car needs tunning soon. I'm gonna see how well i can tune, then take it to XX to get them to finish it off. [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE *Safe* Rev Limit??

Sat, 19 April 2003 13:51

Pete wrote on Sat, 19 April 2003 23:34

I think what it needs is your custom motor and loads more revs!!!

Here here...I'm with you! More rpm, more compression, more cam. These guys got 400 ps (~370hp) so must be possible.

http://www.socalsupras.com/images/Mk4/400NA-1.jpg

Yeah I was there. During the fuel map stage all he had was the oxygen sensor. I didn't notice any knock sensors but maybe he runs that during the ignition tuning. I'll grill him a bit more next week. He did say that with turbo motors he's a lot more particular with as they are much more critical than the NAs. Lots of cooling down in between runs etc.

So where exactly are you at with yours? I saw the exhaust was done (with that monster truck turbo sitting on it!), have you finished the plenum/intake manifold?

[Updated on: Sat, 19 April 2003 14:12]

[Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 14:06

Still a little way off. intercooler piping is 90% done. Exhaust is 10% done. Wiring is done bar the TPS. Not far but no rush, only 7 weeks more uni then i get a month off. I tend to get easily distracted, me thinks if i don't buy a laptop till after exams, i may study. Did you buy a CAN cable for tunning your ECU or are you still using the RS232? If so what was the CAN cable worth?? [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sat, 19 April 2003 14:11

I ran the RS232, but I did get the CAN cable. It was about 150-160. I think with the Windows platform, the CAN cable is the go but I'll confirm with Paul next week. Good idea about the laptop.....I so know what you mean about distraction - I'm supposed to be writing my PhD intro! Yours sounds like it's going to be a monster! [Report message to a moderator]

jzz30
Occasional Poster

Location:
Perth
Registered:
April 2003

Re: 1JZGTE Safe Rev Limit??	Sun, 20 April 2003 03:36

whats the piston speed of the 1JZ-GTE at 7500rpm? gianttomato said "Pete, I'll run the stocky to 7500 (average piston speed of roughly 4000 ft/sec). " then said "I think Nick posted some average piston speeds for the 1J on PF and suggested 9500 rpm represented an average piston speed of 4000 ft/sec!" which engine are you referring to in the first quote? and how fast the pistons going at 7500 on a 1JZ? just curious [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE *Safe* Rev Limit??

Sun, 20 April 2003 03:51

jzz30 wrote on Sun, 20 April 2003 13:36

whats the piston speed of the 1JZ-GTE at 7500rpm?

Using this form webpage, average piston speed is about 3500ft/sec.

jzz30 wrote on Sun, 20 April 2003 13:36

gianttomato said "Pete, I'll run the stocky to 7500 (average piston speed of roughly 4000 ft/sec). "

I was referring to the 2JZGE. Same applies to the 2JZGTE as they share the same bottom end, except for some oil squirters and slightly different pistons.

[Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Sun, 20 April 2003 09:39

The CAN cable is the "only" means of tuning the M800 with the new software. Looks like i'll have to get one sent to me. A picture speaks volumes, this is what i was up to when i was supposed to be studying "Structural Analysis". Passed the mid-semester so who cares.. Here is my attempt at a custom plenum, It'll be good to see how it goes. Cooler piping was done today, Exhaust will get built when i buy the bends/flanges. [Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Mon, 21 April 2003 00:44

Nice! I like the tapered plenum. Did you pop some little trumpets in there? [Report message to a moderator]

ed_ma61
Forums Junkie

Location:
Lost in the K hole
Registered:
May 2002

Re: 1JZGTE *Safe* Rev Limit??

Mon, 21 April 2003 02:36

gianttomato wrote on Sat, 19 April 2003 21:14

I'm actually writing a little blurb about the head mods required to run shim under bucket for Ed's website with a lot of pics. He should have it in the next day or 2 and he'll post it up soon after.

ill belive this when i see it

[Report message to a moderator]

gianttomato
Forums Junkie

I supported Toymods

Location:
I renounced punctuation
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Mon, 21 April 2003 03:41

Hey it's actually all done....I just have to splice in the pics....need a better shot of the custom retainer. [Report message to a moderator]

Pete
Regular

Location:
gold coast
Registered:
May 2002

Re: 1JZGTE Safe Rev Limit??	Mon, 21 April 2003 08:56

Nah, It was not possible to put bellmouths on the runners, at the position i cut the runners. 1 and 6 3 and 4 all Point towards the centre. I really chamfered the runners in order to make up for it. I may make another (if it is lame) with a LS1 throttlebody and really short runners. The reason i painted it wrinkle coat, is my first attempt at aluminium fabrication is well, pretty ordinary.... [Report message to a moderator]

Previous Topic:	call me an idiot, then tell me how to put my dizzy back in
Next Topic:	where 4agze from??

-=] Back to Top [=-

Current Time: Mon Dec 23 17:02:39 UTC 2024

Total time taken to generate the page: 0.0075099468231201 seconds

.:: Contact :: Home ::.