06-25-2020, 04:09 PM
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#1
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Registered User
Join Date: Aug 2017
Location: Tucson,az
Posts: 749
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Has Anyone (Hot Rodded) a 2.7
I 'am curious, If I ever had to rebuild my 2.7..could you rebuild it for more power or torque using different cam's and head work Etc,like you can on most engine's ?? Thanks Frank
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06-25-2020, 06:59 PM
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#2
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Registered User
Join Date: Jul 2013
Location: Bastrop, Tx
Posts: 2,644
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I can't think of anyone that has tried. As a goof I stuck a 3.4 intake and throttle body, along with a 3.8 exhaust manifold on my 2.7 rallycross boxster. I haven't gotten it on a dyno but I can tell I lost some low end torque and think I gained HP above 4500rpm. Those 2.5/2.7 heads can't flow much. I don't think you can run 3.2/3.4 heads on a 2.7 either. You'll have better luck for cheaper upgrading to a 3.2 or 3.4
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Woody
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06-25-2020, 07:23 PM
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#3
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Motorist & Coffee Drinker
Join Date: Jul 2014
Location: Oklahoma
Posts: 3,886
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I am not an attorney, mechanic, or member of the clergy. Following any advice given in my posts is done at your own peril.
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06-26-2020, 06:48 AM
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#4
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by flmont
I 'am curious, If I ever had to rebuild my 2.7..could you rebuild it for more power or torque using different cam's and head work Etc,like you can on most engine's ?? Thanks Frank
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Cams & head work ? Do what Porsche did increase displacement!
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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06-26-2020, 01:41 PM
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#5
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Registered User
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,567
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Sure you can. New pistons, rods, bearings, cylinder liners, etc. Lots cheaper to swap a 3.4 from the same year into it though.
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06-26-2020, 01:58 PM
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#6
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Registered User
Join Date: Aug 2017
Location: Tucson,az
Posts: 749
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Yea..if I ever had to I would go the 3.4 route I was just curious because my Cam deviation numbers are not great..Bank 1 = 8.6 and bank 2 = 3.6 or something ,..I will do tensioners and see if those numbers change but I doubt it
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06-26-2020, 02:20 PM
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#7
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Registered User
Join Date: Aug 2017
Location: Tucson,az
Posts: 749
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BYProdriver,..back with the 1979-88 with the 3.0 Ltr engines you could install the 964 cam's and get a nice Bump in power..and so Iam curious if the same could be done on these engine's not really displacement just some extra kick so to speak,..But I'am sure computer controlled engine's are most likely set at there best performing range already
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06-26-2020, 10:21 PM
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#8
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Registered User
Join Date: Jul 2019
Location: Finland
Posts: 335
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Quote:
Originally Posted by flmont
Yea..if I ever had to I would go the 3.4 route I was just curious because my Cam deviation numbers are not great..Bank 1 = 8.6 and bank 2 = 3.6 or something ,..I will do tensioners and see if those numbers change but I doubt it
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Isn't it the chain ramps worn out and needed to to be changed if the deviation is getting high?
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Boxster 2.7 2001 Manual
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06-27-2020, 08:38 AM
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#9
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by flmont
BYProdriver,..back with the 1979-88 with the 3.0 Ltr engines you could install the 964 cam's and get a nice Bump in power..and so Iam curious if the same could be done on these engine's not really displacement just some extra kick so to speak,..But I'am sure computer controlled engine's are most likely set at there best performing range already
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That's before Porsche was on such a tight budget & had been improving the same engine for 20 years. Installing a "bigger" cam increases high rpm power with a notable loss of low rpm torque which is what gets the car moving. Engine displacement size is the main factor that determines low rpm power to get you moving. Thus the phrase "there is no replacement for displacement!"
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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06-29-2020, 03:29 PM
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#10
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Registered User
Join Date: Aug 2017
Location: Tucson,az
Posts: 749
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Pilot4fun..IDK,..I thought it was the actuators and BYProdriver Ahh ok,I like the low end grunt,.dont want to lose that..! Thanks ! frank
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