4A-GTE 7-rib smallport
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05-22-2017, 09:42 AM
Post: #1
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4A-GTE 7-rib smallport
Hey!
Researched the posibility to turbo a smallport but all the threads I found were about bigports or GZE engines. The higher compression of my smallport surely must make a difference. I'm toying with the idea of putting a small turbo on my 4age (maybe 6-8 psi boost). I read that 7m-ge/gte injectors fit the 4age and provide more fuel than stock injectors. Will the stock smallport ECU handle the bigger injectors or would I need a piggyback/standalone? Would the engine hold up with a small amount of boost or is it not an option on a stock smallport? Any info is appreciated! |
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05-22-2017, 12:44 PM
(This post was last modified: 05-22-2017 12:45 PM by d3nso.)
Post: #2
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4A-GTE 7-rib smallport
Everything you found about turbo conversion of bigports can applied to smallports. The higher CR makes a difference but if your tune is done right isn't it much of a problem.
This leads to the ECU. The stock ECU doesn't like boost so piggyback or standalone ECU would be needed. I would go standalone, not a fan of half assed piggyback setups 7MGTE injectors do work like every others which are +300cc. Daily Beater: Civic EG5 Work in progress Car: AE86 |
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05-22-2017, 07:30 PM
(This post was last modified: 05-22-2017 07:31 PM by nyberrg.)
Post: #3
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4A-GTE 7-rib smallport
(05-22-2017 12:44 PM)d3nso Wrote: Everything you found about turbo conversion of bigports can applied to smallports. The higher CR makes a difference but if your tune is done right isn't it much of a problem.What about the stock ECU would be the issue? I know it's pretty stupid, but I want to do a turbo as kind of a budget upgrade! |
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05-22-2017, 10:47 PM
Post: #4
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4A-GTE 7-rib smallport
The stock ECU isn't designed to handle positive manifold pressure nor to handle such big injectors thats why you should go the standalone route. And yes doing a Turbo setup on a budget is not the best idea
Daily Beater: Civic EG5 Work in progress Car: AE86 |
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05-23-2017, 03:29 PM
Post: #5
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4A-GTE 7-rib smallport
(05-22-2017 10:47 PM)d3nso Wrote: The stock ECU isn't designed to handle positive manifold pressure nor to handle such big injectors thats why you should go the standalone route. And yes doing a Turbo setup on a budget is not the best ideaIt is probably the most cost effective way to gain power though! |
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05-24-2017, 09:24 PM
Post: #6
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4A-GTE 7-rib smallport
Don't bother with stock ecu and anything but small upgrades. At the very least get a Megasquirt or even better a ECU Master. Nothing is cheap when you're tuning
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