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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 18, 2005 - 10:33 AM
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Consynx



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i'd just guess it's the honda is more acceptable to boost.

i dont know hondas, i dont know the compression ratio, since you said 6psi, i can guess it can be as high as 11, because 6 aint much

if that's the case, watch it TRY to hit 9, it should be toast unless those internals are hercules.(sp?)

i dont know about the valve angles of the 7A, but i do know the 5S has 22.3deg, which is for the eco-design and i've always felt that's a part of it's restriction. Since i know little about this i leave it alone...

What type of supercharger are we talking about here?
if running low boost shouldn't a supercharger be the better applicant?


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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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