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YOUR RESEARCH3.4 to 3.8 conversion nickies
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Replace crank
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Suggestion · Original poster
I was primarily looking at the increased bore size rather than changing crank.
Leading evidence: 'Replace crank' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace crank' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion · Original poster
In other words, boring out the stock cylinders, replacing with nickies and increasing to 3.6 or maybe even 3.8l, any thoughts?
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Suggestion
Autofarm offers this option, and you are correct, they use the 3,6 bearing carrier allso.
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Suggestion · Original poster
Has anyone using LN Engineering's nickies tried the 3.4l to 3.8l conversion?
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9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Has anyone using LN Engineering's nickies tried the 3.4l to 3.8l conversion? If not, what about the 3.4 to 3.6? What are the dyno results? Any info is appreciated.
For the 3.4L to 3.6L F6I reported 50hp gained on the dyno for an outcome of 286hp at the wheels (stock is 296hp at flywheel). Although, that HP figure sounds like it included a performance camshaft regrind and altered timing from stock. Not sure if Jake messed with the deck height and other mods - ecu/intake/exhaust.
I'm not sure if LN could do a custom rebore out to 3.8L on a 3.4L block.
Main bearing size was increased from 60mm in 3.4L to to 63mm in 3.6L block, not sure if you could put a 3.6L crank in a 3.4L bearing carrier.
I was primarily looking at the increased bore size rather than changing crank. In other words, boring out the stock cylinders, replacing with nickies and increasing to 3.6 or maybe even 3.8l, any thoughts?
Ditto... sell your old long block and buy byprodriver's. It's a good price considering the upgrades he did alone cost somewhere around $8000-$9000. Not to mention he attended Jake's engine rebuild school so you know it is done properly
I think the question on 3.4L to 3.8L might be is there is enough meat there. Autofarm in UK does 3.4L to 3.7L with silsleeve (similar to Nickies).
If you want to go bigger than 3.6L, getting a 3.6L engine first might be the easier (and cheaper) route, or if you are just looking for more HP, go for the 3.4L to 3.6L bore and then do some other mods like ECU, intake, exhaust, camshaft, etc.
If you are looking at loads more HP look into super charging... of course all of the money you'll spend you might be better off looking for a turbo.
Yes, but the engine will be 3.9l
I had a little e-mail conversation with the autofarm last month, and they said that the cams and the ecu tune could yield 100hp/liter for the 3.4l.
Sounds tempting...
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