 Why can't we turbocharge a 3s-ge?, Compression ratio related |
 Jun 26, 2011 - 10:46 PM
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 Enthusiast  Joined Dec 9, '08 From Blainville Currently Offline Reputation: 4 (100%)  |
I know that the 3s-ge engine has a higher compression ratio than the 3s-gte (which I guess means that the pistons' head are thiner right?), but what does it change so that we can't (or shall not) turbocharge the 3s-ge?
Is it because it would (I don't know) be too much compressed exhaust gases for the turbo to hold? BTW: what does the last number in the compression ratio mean? (Like in 10:3:1) This post has been edited by dudeofchaos: Jun 26, 2011 - 10:51 PM |
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Jun 29, 2011 - 8:52 PM
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Enthusiast Joined Apr 20, '06 Currently Offline Reputation: 0 (0%) |
learn about dynamic compression guys, longer duration cams means lower dynamic compression, all else being equal, a higher duration cam can negate a higher compression ratio, in theory, you will shift the power band, but there is no good reason why a na 3s-ge engine cant make great power boosted, infact many make more power per psi, its just you have less tollerence to detonation. Research dynamic compression and ignore idiots is my advice, it isnt clear cut, but you will mostly hear parrots. given cam timing has an effect on dynamic compression, realise that vvti has a dynamic effect on cam timing, and therefore dynamic compression, and if you arent following by this point, probably shut up.
This post has been edited by Edophus: Jun 29, 2011 - 8:56 PM |
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Jun 30, 2011 - 6:09 PM
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 Enthusiast Joined Feb 11, '08 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) |
QUOTE (Edophus @ Jun 30, 2011 - 1:52 PM)  learn about dynamic compression guys, longer duration cams means lower dynamic compression, all else being equal, a higher duration cam can negate a higher compression ratio, in theory, you will shift the power band, but there is no good reason why a na 3s-ge engine cant make great power boosted, infact many make more power per psi, its just you have less tollerence to detonation. Research dynamic compression and ignore idiots is my advice, it isnt clear cut, but you will mostly hear parrots. given cam timing has an effect on dynamic compression, realise that vvti has a dynamic effect on cam timing, and therefore dynamic compression, and if you arent following by this point, probably shut up. just because you can doesnt mean you would, the amount of **** you would have to do to get a 3sge reliably running 250hp, for the same time money and effort you'd have a 3sgte reliably running 300hp capability of ... what? 400? 500? if its compression you want, you can always skim a cylender head -------------------- Mike W
1996 Toyota Celica ST205 GT-FOUR GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC 269awhp / 273ft-lbs |
Posts in this topic
dudeofchaos Why can't we turbocharge a 3s-ge? Jun 26, 2011 - 10:46 PM
808celica its cheaper just buying a 3sgte.
high compression... Jun 26, 2011 - 11:09 PM
malpaso QUOTE (808celica @ Jun 27, 2011 - 6... Jun 28, 2011 - 2:22 AM
lankyalien QUOTE (808celica @ Jun 27, 2011 - 12... Aug 15, 2011 - 11:48 AM azian_advanced it's written 10.3:1. it means the total volume... Jun 26, 2011 - 11:16 PM delusionz a turbo compresses air so when calculating compres... Jun 27, 2011 - 1:00 AM dudeofchaos That pretty much helps me, thanks guys! Jun 27, 2011 - 10:57 AM Smaay here we go again....there is nothing wrong with bo... Jun 27, 2011 - 11:35 AM dudeofchaos I'm not planning to do so (well... I guess not... Jun 27, 2011 - 2:19 PM richee3 The 4th generation 3S-GE BEAMS has a higher compre... Jun 27, 2011 - 5:16 PM 3WayStunna Wow alot of one sided responses and generic answer... Jun 29, 2011 - 1:54 PM dudeofchaos Well I never said I wanted to swap in a turboed 3s... Jun 29, 2011 - 2:08 PM Keiri QUOTE (dudeofchaos @ Jun 29, 2011 - 3... Jun 29, 2011 - 2:57 PM BonzaiCelica here are some force induction threads on 4th gen 3... Jun 29, 2011 - 3:50 PM Neon90424 I thought the VVTi also played a part in the nonbo... Jun 29, 2011 - 4:45 PM BonzaiCelica QUOTE (Neon90424 @ Jun 29, 2011 - 4... Jun 29, 2011 - 4:51 PM richee3 QUOTE (BonzaiCelica @ Jun 29, 2011 - 4... Jun 30, 2011 - 4:34 PM Rusty QUOTE (BonzaiCelica @ Jun 30, 2011 - 9... Jul 1, 2011 - 2:32 AM 3WayStunna QUOTE (Edophus @ Jun 29, 2011 - 8:52... Jun 30, 2011 - 6:36 PM BonzaiCelica soo running 95 ron on a 3rd gen 3sgte is better th... Jun 29, 2011 - 10:10 PM delusionz the bottom line is, if you started with a 3sge, a ... Jun 30, 2011 - 7:13 PM Neon90424 Would the VVTi be controled by the aftermarker com... Jun 30, 2011 - 11:03 PM BonzaiCelica QUOTE (Neon90424 @ Jun 30, 2011 - 11... Jun 30, 2011 - 11:27 PM BonzaiCelica Bonzai, I dont understand your last comment, but y... Jul 1, 2011 - 3:25 AM delusionz Beams head on my engine would be cool, but very do... Jul 1, 2011 - 6:59 AM delusionz with a turbo you would lower the vvti solenoid eng... Jul 1, 2011 - 7:03 AM 3WayStunna QUOTE (delusionz @ Jul 1, 2011 - 7:0... Jul 1, 2011 - 7:26 AM Edophus vvti doesnt kick in, the i on the end means its al... Jul 2, 2011 - 7:06 PM delusionz edofus i bet a 3sge unbuilt would max out somewher... Jul 5, 2011 - 10:54 AM Edophus QUOTE (delusionz @ Jul 5, 2011 - 4:5... Jul 15, 2011 - 7:57 AM delusionz QUOTE (Edophus @ Jul 16, 2011 - 12:5... Jul 18, 2011 - 8:50 PM brenton1919 yes the compression is to high to boost. u can boo... Jul 2, 2011 - 8:11 PM Neon90424 I think we all GET that boosting on a high compres... Jul 2, 2011 - 10:29 PM delusionz All this vvti stuff and high compression stuff and... Jul 5, 2011 - 11:07 AM delusionz The only real advantage of high compression small ... Jul 5, 2011 - 11:11 AM ST205WRC so im possibly about to embark on this journey. i ... Jul 16, 2011 - 1:54 AM 3WayStunna Nope the NA 3rd gen 3sge doesent have squirters at... Jul 16, 2011 - 2:51 AM Edophus i'm pretty sure na 3s-ge's do have oil squ... Jul 18, 2011 - 4:04 AM 3WayStunna Well then, i stand corrected on the oil squirters ... Jul 18, 2011 - 4:47 AM Edophus QUOTE (3WayStunna @ Jul 18, 2011 - 10... Jul 18, 2011 - 5:41 AM ST205WRC yeah my bad its an ST202 A/T with ACIS. its a POS ... Jul 18, 2011 - 6:43 AM Edophus QUOTE (ST205WRC @ Jul 18, 2011 - 12... Jul 18, 2011 - 7:06 AM 3WayStunna Man i wish EAZY was here. he would be able to answ... Jul 18, 2011 - 5:29 PM Neon90424 I kept trying to tell everyone about changing the ... Jul 18, 2011 - 7:38 PM 3WayStunna QUOTE (Neon90424 @ Jul 18, 2011 - 7... Jul 18, 2011 - 8:45 PM delusionz The real question isn't Why can't we turbo... Jul 18, 2011 - 8:55 PM 3WayStunna Think that both questions have been answered more ... Jul 18, 2011 - 9:54 PM Rusty The 2nd Gen 3sgte had TVIS. Also the ACIS manifold... Jul 20, 2011 - 4:57 AM Edophus well the original questions was what is it about t... Jul 20, 2011 - 5:04 AM delusionz While were at it ditch the rubbish intake/exhaust ... Jul 20, 2011 - 5:51 AM Neon90424 just boost an altezza Jul 20, 2011 - 8:54 AM malpaso QUOTE (Neon90424 @ Jul 20, 2011 - 3... Jul 21, 2011 - 3:48 AM ST205WRC not to offend any one that has commented on this t... Jul 21, 2011 - 7:40 AM 3WayStunna QUOTE (malpaso @ Jul 21, 2011 - 4:48... Jul 21, 2011 - 10:40 PM mkernz22 Not to try and compare it to Honda's, but isn... Jul 21, 2011 - 10:52 PM delusionz except, you'd launch at an rpm higher than the... Jul 21, 2011 - 11:12 PM 3WayStunna While reading up on both systems, ive read that VT... Jul 22, 2011 - 1:07 AM Rusty Variable Length Intake Manifold (with info regardi... Jul 22, 2011 - 4:03 AM Edophus QUOTE (Rusty @ Jul 22, 2011 - 10:03 ... Jul 22, 2011 - 7:39 AM delusionz Greddy do a kit for the altezza, with turbo, manif... Jul 22, 2011 - 4:38 AM delusionz the main thing with the blacktop is figuring out w... Jul 22, 2011 - 8:34 AM 3WayStunna EDIT: have also read that an easier way to overcom... Jul 23, 2011 - 1:53 AM 3WayStunna Found some more info whilst parusing the net. Seem... Jul 23, 2011 - 1:45 AM Rusty however with the gen 2 3sge, may require you to co... Jul 23, 2011 - 3:31 AM Edophus the st205 blocks were revised at some point due to... Jul 23, 2011 - 5:43 AM delusionz QUOTE (Edophus @ Jul 23, 2011 - 10:4... Jul 23, 2011 - 5:59 AM Edophus QUOTE (delusionz @ Jul 23, 2011 - 11... Jul 23, 2011 - 6:20 AM delusionz then what is it you hear "kicking in" on... Jul 23, 2011 - 7:11 AM Edophus QUOTE (delusionz @ Jul 23, 2011 - 1... Jul 23, 2011 - 7:37 AM Neon90424 all this talk of vvti is starting to turn me on, c... Jul 23, 2011 - 12:21 PM Edophus QUOTE (Neon90424 @ Jul 23, 2011 - 6... Jul 23, 2011 - 2:37 PM 3WayStunna Are the injectors on the redtop beams top feed/sid... Jul 24, 2011 - 1:08 AM Rusty info regarding ST205 thick or thin block
Would ... Jul 24, 2011 - 3:54 AM Edophus QUOTE (Rusty @ Jul 24, 2011 - 9:54 A... Jul 24, 2011 - 6:14 AM 3WayStunna WOW rusty that is some awesome info you posted up ... Jul 24, 2011 - 5:52 AM ST205WRC we really need to stop with this thread all its ma... Jul 26, 2011 - 7:04 AM 3WayStunna Dude im there....already speccing out my 3sge buil... Jul 26, 2011 - 9:01 AM Rusty found some info on an altezza forum
QUOTE Other no... Jul 28, 2011 - 2:55 AM 3WayStunna QUOTE (Rusty @ Jul 28, 2011 - 3:55 A... Jul 28, 2011 - 7:02 AM Edophus cant really read anything into those power figures... Jul 28, 2011 - 7:02 AM Edophus next to the oil filter on the blacktop is a series... Jul 28, 2011 - 7:15 AM 3WayStunna Ahh thanks for clarifying that edophus...makes mor... Jul 28, 2011 - 7:28 AM Edophus QUOTE (3WayStunna @ Jul 28, 2011 - 1... Jul 28, 2011 - 7:58 AM ST205WRC @3way the TODA 268 IN cam doesnt say you cant use ... Jul 28, 2011 - 7:42 AM 3WayStunna Looks like it can. Ive looked into it for a bit on... Jul 28, 2011 - 7:55 AM 3WayStunna Its not necessary. Here in a few months ill have h... Jul 30, 2011 - 1:55 AM 3WayStunna Alright ealier i posted that the blacktop might be... Jul 31, 2011 - 10:25 AM Edophus 3way here is a pic of the blacktop before i droppe... Aug 11, 2011 - 5:01 AM 3WayStunna Edophus very helpful picture. Never new you were r... Aug 11, 2011 - 5:34 AM ST205WRC so basically stay with the red top for the 6th gen... Aug 11, 2011 - 8:07 AM Edophus the blacktop intake valves are 35mm vs 34.5mm for ... Aug 11, 2011 - 10:06 AM delusionz woah, supercharger and carbon fibre intake on a 3s... Aug 16, 2011 - 11:27 PM fgvillegas If you were to turbocharge a 3rd gen 3sge in 2 dif... Aug 24, 2011 - 11:09 PM fgvillegas I hope someone can shed a light on this. I'm p... Sep 2, 2011 - 6:37 AM Neon90424 supercharge it with stock internals. bam! Sep 2, 2011 - 10:10 PM fgvillegas QUOTE (Neon90424 @ Sep 2, 2011 - 10... Sep 3, 2011 - 9:04 PM Neon90424 it might be a good idea but in the end supercharge... Sep 3, 2011 - 10:11 PM 3WayStunna There is also the rotrex line of superchargers....... Sep 4, 2011 - 2:10 AM |
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