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I supported Toymods
Location:
Perth
Registered:
July 2004
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Modifying 7MGTE Internals
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Wed, 20 April 2005 06:51
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My Head Gasket is still fine, but id rather blow the head off the snake from 100m away before it comes to bite me if you get my drift. Thus im going to get the whole thing done properly..
Mind you with the pain that its going to cause my by decking the block and machining it and all the rest. Ive decided that i only ever want to pull the block out once in the next 5 years so any internal modifications i want to make are going to get done at the same time that i do my Head Gasket.
So..
This is the list of what ive got in mind to chuck into it (I'll order it from the US next month)
- JE Forged Pistons (.020 Over) - $750ish USD (Rings Included)
- Crower Forged Billet Rods - $980ish USD
- GReddy 2mm MHG (85mm Bore) - $175 USD
- ARP Head Studs - $119 USD
My question here is what else should i be ordering to change internally so that i dont need to pull the head apart again for literally the life of the car... Valves? Etc..?
Recommendations?
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 07:15
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My question here is, why spend $3000 on a 7MGTE when you can just drop a 2JZGTE in there and get more power and more reliability?
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I supported Toymods
Location:
Perth
Registered:
July 2004
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 07:25
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Because its hardly ever $3000 at the end of the day.. it'll be double that.
Also because im happy with the 7M.. besides a few issues i know need fixing. Once youve done the MHG theyre literally bulletproof anyway. Im not looking to get anymore than 500hp out of it anyway (at the flywheel). I do however want to run a reasonable T04 setup later on thus the requirement i have to make the internals rock hard in case i fiddle too much with the AVC-R and screw something up..
Last but not least, the transplant was engineered and i have a compliance plate on the firewall to stick up any coppers arse that tries to get smart with me. I might have a harder time explaining a 2JZ..
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I supported Toymods
Location:
Perth
Registered:
July 2004
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 07:30
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Oh and four.. i cant afford to have it off the road for more than a few days at a time. I need it for Work.. 2JZ Transplant = too much unreliability based on teething issues to constitute the effort..
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 07:32
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A copper will sticker you whether you can prove something or not, so don't expect it to be all good just coz its legal.
And a 2jz conversion would have to be engineered anyway.
By the time you do all that to the motor, plus the turbo, and the ecu, and the injectors, etc etc etc, you'll be about $1000 cheaper, than if you bought a 2jzgte and did the same (bar the internals).
Plus you'd be able to sell a good condition 7mgte will full loom and ecu.
I'm not talking you out of it, I'm just trying to offer, what I see as, a more sensible solution.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 07:33
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| hamgatan wrote on Wed, 20 April 2005 15:30 |
Oh and four.. i cant afford to have it off the road for more than a few days at a time. I need it for Work.. 2JZ Transplant = too much unreliability based on teething issues to constitute the effort..
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But you expect to remove a 7mgte, deck the block, hone the bores, and rebuild it all in a few days?
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I supported Toymods
Location:
Perth
Registered:
July 2004
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 07:50
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A lot of people are doing the JZ series because its a better motor.
The whole fact that the block isn't design back in the mid 70's is a plus.
I just think for the small extra outlay, the returns will be much greater thats all
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I supported Toymods
Location:
Perth
Registered:
July 2004
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 07:55
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i suppose.. but its a pain in the arse to do as well  fact is im going to keep the supra as a powerful cruiser and get a JZZ30 early next year as well as an initial family car (yeah its 2 door but least its roomy as all hell).. so yeah ill have a JZ series to pump the crap out of then. problem is that im fussy and i want a JZZ30.. but i want the interior that usually only comes with the UZZ's.. (the GTL Leather)
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Registered:
August 2002
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 07:58
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| CrUZsida wrote on Wed, 20 April 2005 17:32 |
I'm not talking you out of it, I'm just trying to offer, what I see as, a more sensible solution.
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Put a 1uz in a cressida, its a cheap conversion!
oh hang on.......
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 08:27
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| BlackSupra wrote on Wed, 20 April 2005 15:58 |
| CrUZsida wrote on Wed, 20 April 2005 17:32 |
I'm not talking you out of it, I'm just trying to offer, what I see as, a more sensible solution.
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Put a 1uz in a cressida, its a cheap conversion!
oh hang on.......
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It could have been cheap, and I was still way under 3k when I drove it out of the garage under its own steam...
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I supported Toymods
Location:
Perth
Registered:
July 2004
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 09:13
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still doesn't tell me though what else i should be looking to upgrade/replace while the blocks out.. 
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 09:20
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Any part that moves.
Or is in contact with a moving part.
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Location:
Adelaide
Registered:
September 2003
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Re: Modifying 7MGTE Internals
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Wed, 20 April 2005 22:45
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| hamgatan wrote on Wed, 20 April 2005 18:43 |
still doesn't tell me though what else i should be looking to upgrade/replace while the blocks out..
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It seems that you are intent on keeping with the 7M, so here goes what I would be doing...
Forget about the Rods unless you want to go for really high HP. Evidence from the states (for what it is worth) and others that the rods are good for about 500HP plus.
One thing that seems to be an issue is the oil pump. Buy a NEW one from Toyota and make sure the clearances are really good. There are NO High Volume pumps available off the shelf for 7M's despite claims.
Personally, I have been thinking of going down the route that you are heading (albeit with a spare engine), but the costs of doing a decent job, and the pics of the V8 nestled in the bay of a MA61 are proving very appealing. And when you add the results of JustenGT4 with the TT1UZ, it gets even more appealing.
I have a spare head (actually 2 in the shed) and some gaskets, but if they go, a quick swap job and some investnment in 1UZ gear may be the go....
Good luck and keep us informed of what the costs and results are
Cheers
Michael B
OH, and BTW, be aware of customs and GSt on getting things from the states. They even apply GST to the postage !!!!
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I supported Toymods
Location:
Perth
Registered:
July 2004
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Re: Modifying 7MGTE Internals
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Thu, 21 April 2005 00:45
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Thanks Michael,
Some US States apparently have huge Tax Levies on top of like 20% (New Jersey for Example). I'll have to ask the fellas over there if they have any tax exemptions for it leaving the country etc..etc.. Like when i was looking at the Erebuni kits before they said that i can have 20% off because its going international. Some states have offered me 5%
Else i'll get them to EMS them in 4 separate packages marke 'Gift' and separately mail the receipt
Should i just clean the stock rods up then yeah?
What else have i missed internally that i should be changing if i want to put 500hp through it max and for it to be literally bulletproof..? Valve Springs? Cams? Etc..
Reason im asking that is im not sure exactly whats inside the block.. besides the pistons, cams, rings & rods..
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Modifying 7MGTE Internals
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Thu, 21 April 2005 00:55
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Michael has already suggested to get a new oil pump.
Also looking into bearings.
While the engine is out, get the crank balanced, as well as all the rods/pistons/bigends etc.
If it moves get it balanced.
Anything in the head (besides the valves) can be done with the motor in situe.
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Location:
Adelaide
Registered:
September 2003
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Re: Modifying 7MGTE Internals
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Thu, 21 April 2005 01:05
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Cams can be had, but they are expensive (over $1k each).
Depending on what computer you are using, cam gears might be an option.
Not many people have installed/run bigger valves in a 5/6/7M, so they may not be worth it.
Look at Ed's page for tips and tricks re porting the head.
You can try marking things as gifts, but customs people are not that silly. They have an idea of what is going on, and a USD$1k (?) body kit will be hard to convince that it is a gift, but go for it !!!
The main bearing that the states people use is Cleveite (i think that is the correct spelling).
As I mentioned before, when adding up the costs, the 1UZ seems VERY appealing.
BTW, I have a MHG (Cometic) that you can grab off me if you want 
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Location:
Melbourne
Registered:
May 2002
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Re: Modifying 7MGTE Internals
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Thu, 21 April 2005 01:14
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contact specialised piston services down here in victoria might be better then importing!
other then that i am also of the view that rebuilding the 7m and keeping the factory engine has advantages over a swap unless you have lots of money or a cheap 2jz and lots of time
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I supported Toymods
Location:
Perth
Registered:
July 2004
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Re: Modifying 7MGTE Internals
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Thu, 21 April 2005 01:24
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How much do you want for the MHG Mike? Also youve got those ARP's as well dont you? Computer, id be sticking with the stock 7M one right now because im unfortunately stuck with the Auto trannie and theres no point me changing the ECU with that thing in place till i do an R154 swap, but thats waaaay later down the track. Besides, keeping the Auto trannie is a good sure-fire way to resist the temptation to drive her too hard.
Allan - Thanks, Might give them a bell. Just heard good stories about the JE's thats why they were my first stop.
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Location:
Melbourne
Registered:
May 2002
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Re: Modifying 7MGTE Internals
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Thu, 21 April 2005 06:18
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nothing wrong with the auto get a shift kit and a 3000rpm stall be quicker then any manual... also looking at disconneting the brake switch from the auto trans ecu (only when pwr buttion is pressed ((ie not interested in saving fuel mode))) so it keeps the torque converter locked when the brakes are applyed until the low rpm point is reached, should help with those unstable moments thru twisties where it feels like someone put there foot on the clutch
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Location:
Melbourne
Registered:
May 2002
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Re: Modifying 7MGTE Internals
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Thu, 21 April 2005 06:31
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| CrUZsida wrote on Thu, 21 April 2005 16:28 |
3000rpm stall? ON a street driven car?
pffft, just get a manual.
EDIT: ON
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yep on a car with a shift kit and a lock up torque converter it just drives nice and smooth under light throttle openings and then locks up so no insane slipping while cruising
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Location:
sunny coast, qld
Registered:
October 2002
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Re: Modifying 7MGTE Internals
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Thu, 21 April 2005 12:09
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| Allan wrote on Thu, 21 April 2005 16:31 |
| CrUZsida wrote on Thu, 21 April 2005 16:28 |
3000rpm stall? ON a street driven car?
pffft, just get a manual.
EDIT: ON
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yep on a car with a shift kit and a lock up torque converter it just drives nice and smooth under light throttle openings and then locks up so no insane slipping while cruising
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Sounds like a plan to me
If I were in your position, I would rebuild the engine as well. A 1uz would be nice but that is not going to be cheap to make 500hp. Conversions aren't cheap especially if you are paying for labour so I would stick with the 7m.
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Location:
Adelaide
Registered:
September 2003
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Re: Modifying 7MGTE Internals
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Fri, 22 April 2005 03:05
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[quote title=Chris Davey wrote on Thu, 21 April 2005 21:39
Sounds like a plan to me
If I were in your position, I would rebuild the engine as well. A 1uz would be nice but that is not going to be cheap to make 500hp. Conversions aren't cheap especially if you are paying for labour so I would stick with the 7m.
[/quote]
Labour would be by me, even rebuilding the engine, but it is all of the sundry parts in rebuilding an engine that can add up very quickly.
I'll be keeping my options open, but will keep an eye on Hamgatan to see what his final total is
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I supported Toymods
Location:
Perth
Registered:
July 2004
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Re: Modifying 7MGTE Internals
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Fri, 22 April 2005 03:36
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I would like to avoid unneccessary things obviously, so yeah if the Rods aren't neccessary then fudge em. Avoid unneccessary things, without cutting Corners is what i mean to say..
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Location:
Australia
Registered:
September 2002
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Re: Modifying 7MGTE Internals
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Fri, 22 April 2005 17:50
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The standard rods are fine. I've managed 302kw at the wheels with them so far and I'll be looking to make more soon. One important point with regards to your rebuild the 7M plan versus engine swap. If you rebuild the 7M you have a fresh motor as opposed to a secondhand motor. This was one major factor that made me decide to rebuild mine, that and all the 7M parts I had around. A tip if you go with JEs get them machined to take standard Toyota rings the JE rings are thinner and engine life will be shorter. Don't worry about cams unless you run a big turbo.
Dan
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