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4agze to the max

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4agze to the max Register Help Home Forum New Posts FAQ Calendar Community Groups Reported Items Top Posters Forum Actions Mark Forums Read Quick Links Today's Posts Contribution Actions Contribute Blogs What's New? Contribute Advanced Search Forum Toyota MR2 Generations MK 1 MR2 - AW11 4agze to the max
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 7 of 7 Thread: 4agze to the max Thread Tools Show Printable Version Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 03-17-2006, 01:44 PM #1 oh_schnapps View Profile View Forum Posts Private Message View Blog Entries .::OH .::schnapps Join Date Mar 2006 Location fremont, ca Posts 32 Thanks  0 Thanks  0 Thanked in0 Posts Total Contributions For
oh_schnapps     $ 0.00 4agze to the max dose the head off of a 4age work on a 4agze if so what are the differences. dose the 4agze have bigger ports or something. I'm looking to get a head of some sort and port the **** out of it to see just how much power these 4agze motors can make. the build will have: hks forged stroker crank, hks forged top end, over bored to 20 over, hks cams, hks cam gears, hks timing belt, custom made crank pulley and sc pulley. sc12 will be replaced with sc14 (17psi mod), hks f-con to get the most out of the 550cc injectors and sc14. custom exhaust from a race shop near hear 3.5" tubes all the way (no cat, no muffler) this motor will have to use 108, no pump gas for this beast. but after its all said and done i want to see about 300-350hp at the wheels , making it the fastes mk1 around. also the build looks to cost somewhere around $8,000 and I'm doing the work, no shop guy is just doing it for me. I have custom motor mounts that i will be selling out after the prototype is done. they use a damper and increase rigidity to motor sway by more than 80%, so no more cracked motor mounts. Reply With Quote 03-17-2006, 02:24 PM #2 SpeedballTrix View Profile View Forum Posts Private Message View Blog Entries Foul Weather Drifter Join Date Oct 2005 Posts 870 Thanks  4 Thanks  1 Thanked in1 Post Total Contributions For
SpeedballTrix     $ 0.00 Sounds like a pretty serious build.
You're not going to touch 350rwhp though.
If you get 300 at the wheels Ill be very impressed, but with that list of mods I can see it being possible.

If you're going with straight race gas, why not upgrade the valvetrain and tune it to run more revs? Reply With Quote 03-17-2006, 02:46 PM #3 MR-Fixer View Profile View Forum Posts View Blog Entries Censored ***** censors Join Date Feb 2006 Location Censored Posts 95 Thanks  0 Thanks  1 Thanked in1 Post Total Contributions For
MR-Fixer     $ 0.00 Some rich dude from Texas tricked out a 4age to 450 HP and set a landspeed record (for that class of engine) with it on Salt Lake Flats.

For starters you'd need a 7 rib 4age block, with the larger crankshaft: 4agze's come this way, and so do some later NA's. The 7 tibs make the block flex less under high torque.

The you'd need forged rods, and pistons. The N.A. rods and pistons are too weak for serious boost.

You might as well start off with a 4agze long block. Since forged pistons and rods would cost more than a Jspec 4agze off Ebay.

I have a thread on a SC14 upgrade in the boosted section for MkI's in case you are interested. Reply With Quote 03-19-2006, 10:02 AM #4 chdesign View Profile View Forum Posts Private Message View Blog Entries No Skills Join Date Mar 2006 Posts 6 Thanks  0 Thanks  0 Thanked in0 Posts Total Contributions For
chdesign     $ 0.00 The 4AGE and the 4AGZE heads are the same they are both largeport heads. Its not until you get into the 90+ years that the 4AGE head design changed and they went with a smaller port but these were only found in Japan and the Geo Prism GSi with the small port 4AG Reply With Quote 03-23-2006, 01:04 AM #5 CpuZapper View Profile View Forum Posts Private Message View Blog Entries Visit Homepage RallyRacer Join Date Mar 2005 Location Portland, OR Posts 482 Thanks  7 Thanks  25 Thanked in22 Posts Total Contributions For
CpuZapper     $ 0.00 There isn't a lot to be gained from porting the intake side, as it's already too big. The exhaust side can use a little polishing, but thats about it. The SC-14 won't make 350 rwhp, and the fcon will not be the right choice. You'll melt your mill. Get a real standalone like Megasquirt: it'll run fuel and ignition and let you tune it properly. Stock Toyota GZE pistons are plenty for your application, but forged rods are a must along with ARP fasteners. 3.5" exhaust is too big, all you need is 3 max. With my worn stock mounts, and 170 hp turbo'd NA I only see 1/2" of movement, and with filled mounts I can't really even see it on video, but I'd be curious to see what kind of mount you're thinking of. Dylan Hooker
Resident 4AGTE and MSnS-E Tech
LOC Racing
2008 Subaru Impreza WRX
'86 MR2 Jack Stand Racer
'86 Corolla GTS Group 2 Rally Car Reply With Quote 12-02-2006, 05:00 AM #6 nick.parker View Profile View Forum Posts Private Message View Blog Entries No Skills Join Date Dec 2006 Posts 9 Thanks  0 Thanks  1 Thanked in1 Post Total Contributions For
nick.parker     $ 0.00 oh_schnapps you are unfortunately dreaming about those hp levels, but no problem you will figure more stuff out as you try it. While its true the larger displacement of the SC14, enables fairly high boost levels, it is still too inefficient for serious power. But it can still give a great amount of power for a street setup, and very strong low mid torque.

My daily driven AW11 has an SC14 setup and has run 19psi with 267degree cams, (although it current runs 15psi with a different cam setup), it has a good water to air intercooling system, 60mm throttle, completely redone 70mm custom plumbing and a 2.5" exhaust, high flow cat, custom ECU , 550cc injectors (to allow for future mods), walbro pump to be safe, beefy clutch.....etc..etc. On 15psi with the stock exhaust and a poor tune it made exactly 150rwhp . On 19psi and with a better tune and the exhaust system I don't think I wouldl see more than 180/190rwhp - can let you know in a few weeks. BUT, don't let this stop you, my car had FANTASTIC low end torque on 19psi with the stock cams, I would not be lying to say much like a decent V8. When I went to the 267's the car lost the ridiculous low end, but then the mid and top end were better - the car didn't run out of puff until 6500rpm...

Some info on my setup: http://www.e-wire.net.au/~nrparker/M...new_engine.htm

Cheers, Nick Last edited by nick.parker; 12-03-2006 at 12:11 AM. Reason: add more detail Reply With Quote The Following User Says Thank You to nick.parker For This Useful Post: CpuZapper (12-06-2006) 01-12-2007, 12:06 PM #7 aaron7 View Profile View Forum Posts Private Message View Blog Entries Visit Homepage omg jdm Join Date Nov 2006 Location MA, USA Posts 132 Thanks  0 Thanks  2 Thanked in2 Posts Total Contributions For
aaron7     $ 0.00 Good to know the GE and GZE head are the same... as on my gze someone half-assed ported it and I'd like to go stock! 98 Jeep GC 5.9 - Mopar intake & ECU, cut H&R springs, Prothane kit, 255/55/18 tires, Alpine electrics, a/d/s amps & components, few JL 10W6
89 MR2 MK1.5 - Back to bare shell for the final product 7+ year project so far
74 CB360 - lots of fun cafe stuff
81 CX500 - next victim... Reply With Quote « Previous Thread | Next Thread » Posting Permissions You may not post new threads You may not post replies You may not post attachments You may not edit your posts   BB code is On Smilies are On [IMG] code is On [VIDEO] code is On HTML code is Off

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