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> toyota VS honda, stock -> turbo
post Apr 17, 2005 - 3:27 AM
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Hanyo

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how come honda engines seem to have more power and boost more compaired to toyota engines. Well to be more specific, the b18 VS the 7afe.

I've heard earlier, under boost conditions the variable valve timing actually hinders performance.

so why does a supercharge b18 engine at 6psi make 190 whp with no aftermarket fuel management?
where as a 7afe only can make 170 whp with a turbo and all the dooo dads? ( i dont remember how much boost nik was using.)


it just doesn't make sense. 7afe and b18 both have 1.8 liter engines. And the 7afe head is suppose to be a good turbo head?
 
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post Apr 17, 2005 - 11:03 PM
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Hanyo

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let move out from the performance engine topic, because its gonna cause a mess of this discusion with whois performance engine is better.. ( B16 vs 4age .. ect)

its stricty the D16 vs the 7AFE.


the D16 non-vtec can make 115hp, with 110 tq @ 4500 RPM ( 97 civic HX coupe) and gets 34 city 38 highway mpg

the 7afe can make 105 hp, with 110 tq with 27 city 34 mpg highway mpg.


Both these engine have around the same hp, both these engines are econony engines.

YET the D16 can make more power when boosted with a SOHC?
The 7afe has more displacement and a DOHC, yet it cant make more power.

Posts in this topic
- Hanyo   toyota VS honda   Apr 17, 2005 - 3:27 AM
- - Mike   ahem... 3s-gte.... 700whp... 2jz-gte... infinity r...   Apr 17, 2005 - 4:03 AM
- - Hanyo   i know i know.. there are some motors built to mak...   Apr 17, 2005 - 5:10 AM
- - StreetRacing10PSI   the valves on the b16 and b 18's on hondas are...   Apr 17, 2005 - 7:00 AM
- - StreetRacing10PSI   and nik was runing 9.5 PSI on his kit, and ill be ...   Apr 17, 2005 - 7:01 AM
- - Hanyo   i understand how the the B series engines from hon...   Apr 17, 2005 - 7:05 AM
- - Digndoug   the biggist thing .. That the 7afe has a slave cam...   Apr 17, 2005 - 9:33 AM
- - 95gtschick   the d16 engine can make a whole lot more than 200w...   Apr 17, 2005 - 9:49 AM
- - thedevilmaycrie   ok doing a b series honda engine against the 7afe ...   Apr 17, 2005 - 10:55 AM
- - Rjb23   B series is a performance enging, where as the a s...   Apr 17, 2005 - 11:45 AM
|- - ghostdog   QUOTE(Rjb23 @ Apr 17, 2005 - 12:45 PM)B serie...   Apr 17, 2005 - 12:06 PM
|- - Rjb23   QUOTE(gh0st_d0g @ Apr 17, 2005 - 5:06 PM)QUOT...   Apr 18, 2005 - 1:23 PM
- - Kwanza26   I could tell you guys why... but It would really b...   Apr 17, 2005 - 12:40 PM
- - Anub1s   Guys Honda knows what they are doing with their en...   Apr 17, 2005 - 1:19 PM
- - Blakout16   QUOTE(Kwanza26 @ Apr 17, 2005 - 9:40 AM)I cou...   Apr 17, 2005 - 2:11 PM
- - 97sccelica   1. more R&D has been put into extracting power...   Apr 17, 2005 - 10:42 PM
- - Hanyo   let move out from the performance engine topic, be...   Apr 17, 2005 - 11:03 PM
- - saleeka   Also dosent the A series have its roots in the ear...   Apr 17, 2005 - 11:06 PM
- - Bigmeanbulldog55   I think it has a lot to do with the close cams and...   Apr 17, 2005 - 11:26 PM
- - Hanyo   QUOTE(Bigmeanbulldog55 @ Apr 17, 2005 - 9:26 ...   Apr 18, 2005 - 5:01 AM
- - darksecret   I might be wrong on this but the last time I pulle...   Apr 18, 2005 - 10:20 AM
- - Consynx   i'd just guess it's the honda is more acce...   Apr 18, 2005 - 10:33 AM
- - Bigmeanbulldog55   QUOTE(hanyo @ Apr 18, 2005 - 11:20 AM)but sca...   Apr 18, 2005 - 11:25 AM
- - nik   ok if you want to do a 7afe vs b-series 1.honda d...   Apr 18, 2005 - 1:53 PM
- - Kwanza26   Here's a simple way to look at it... more hors...   Apr 19, 2005 - 2:32 AM
|- - darksecret   [/quote] There's only one cam... but there...   Apr 19, 2005 - 9:18 AM
- - creis   well first of all, you guys keep saying turbo this...   Apr 19, 2005 - 6:06 AM
- - Consynx   Kwanza, just to add to you for those who are confu...   Apr 19, 2005 - 9:23 AM


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