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> Why can't we turbocharge a 3s-ge?, Compression ratio related
post Jun 26, 2011 - 10:46 PM
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dudeofchaos



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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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post Jul 22, 2011 - 1:07 AM
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3WayStunna

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While reading up on both systems, ive read that VTEC is much more aggressive than VVTI. To be honest, after driving an altezza and my prelude, the altezza was fair more aggresive with spirited driving when driven under the same conditions as my prelude, yet much more smoother. With the VTEC it was like a KICk...well we all know what its like, but with the VVTI much more smoother.

I understand it that, VVTI dosent "kick in" but instead is a constant change of cam timing as the car is driven.
VTEC on the other hand, allows for the valves to operate in a differnt manner thus creating the KICK and such...

One thing i am wondering though, considering timing, is whether or not it would be wise to just turbocharge the blacktop. I mean, the biggest obstacle would have to be with ECU timing.


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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
- - Edophus   learn about dynamic compression guys, longer durat...   Jun 29, 2011 - 8:52 PM
|- - delusionz   QUOTE (Edophus @ Jun 30, 2011 - 1:52...   Jun 30, 2011 - 6:09 PM
|- - 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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