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Old Dec 6, 2010 | 02:04 PM
  #181  
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that power curve is insane! I need to stroke my 4g sooon... good info here
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Old Dec 7, 2010 | 03:23 PM
  #182  
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Anyone have any insight into doing the timing belt on a 2.1? I've got a MAP 2.1l and will be putting the head on soon. The head has Comp 280s w/ adjustable gears and the cams were degree'd by the previous owner. The only info I've been able to dig up is just that they need to be degree'd and thats about it.
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Old Dec 8, 2010 | 05:13 PM
  #183  
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From: austin,tx
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Old Dec 8, 2010 | 06:35 PM
  #184  
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Buschur is doing a 2.3 for my Green powered IX, Manley billet knife edged crank, turbo tuff rods and his custom 10-1 lightweight pistons, im pretty stoked to say the least.
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Old Dec 9, 2010 | 03:22 AM
  #185  
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I'm just wondering too building a 2.3 or 2.4 and mivec head engine from an Evo 8 engine.
Ofcourse I know the 2.4 is better but hard decision because i have a good condition 4g63 block. But building a 2.4 mivec non of my parts need anymore from the oem 2.0 setup so I can sell the complete longblock.
The aim is as fast spool up as the stock engine stock evo9 turbo doing now with near 500/500 power level on E85 or 400/400 on european 100oct pump gas and dont push the turbo or the tune on the limit. Leave in some safety band.
Basically it will be DD car with more fun Sometimes amateur rally- auto x and like this and not for drag racing. On turbo thinking on the hta green, red 84mm, maybe the black or the new HKS. I'm really excite what will the dyno show with the other topic car the 2.4 and BB convert fpblack
Engine internal, I like the maperformance package with oem crank, map rods, the wider 6g bearings and wiseco hd pistons. It coud be a great combo for the price.

But what's up with reliableity ? In average these kind of built engines coud last as long as the stock on the same usage ? I heard that need to pay more attention on the rod bearings and after certain miles drop in new one, cost much less and simple work than a new engine. Any other known problem ?

If not the MAP engine internal i calculate with a more expensive options, the manley billet turbo stuff crank and aluminium rods. At my aim power level thinking on these more expensive parts or just go with the oem crank map rods combo ? Are the aluminium rods as good for dd driving, rally, some track days as the steel ? I know the weight is much less, the price is near the same as good steel one but will last as long too ? Or basically they are designed to 1/4 miles race high power rated 700whp++ engine ?
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Old Dec 9, 2010 | 03:42 AM
  #186  
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Originally Posted by VGergo
I'm just wondering too building a 2.3 or 2.4 and mivec head engine from an Evo 8 engine.
Ofcourse I know the 2.4 is better but hard decision because i have a good condition 4g63 block. But building a 2.4 mivec non of my parts need anymore from the oem 2.0 setup so I can sell the complete longblock.
The aim is as fast spool up as the stock engine stock evo9 turbo doing now with near 500/500 power level on E85 or 400/400 on european 100oct pump gas and dont push the turbo or the tune on the limit. Leave in some safety band.
Basically it will be DD car with more fun Sometimes amateur rally- auto x and like this and not for drag racing. On turbo thinking on the hta green, red 84mm, maybe the black or the new HKS. I'm really excite what will the dyno show with the other topic car the 2.4 and BB convert fpblack
Engine internal, I like the maperformance package with oem crank, map rods, the wider 6g bearings and wiseco hd pistons. It coud be a great combo for the price.

But what's up with reliableity ? In average these kind of built engines coud last as long as the stock on the same usage ? I heard that need to pay more attention on the rod bearings and after certain miles drop in new one, cost much less and simple work than a new engine. Any other known problem ?

If not the MAP engine internal i calculate with a more expensive options, the manley billet turbo stuff crank and aluminium rods. At my aim power level thinking on these more expensive parts or just go with the oem crank map rods combo ? Are the aluminium rods as good for dd driving, rally, some track days as the steel ? I know the weight is much less, the price is near the same as good steel one but will last as long too ? Or basically they are designed to 1/4 miles race high power rated 700whp++ engine ?
For what your looking to do LR 2.4L will be perfect.
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Old Dec 9, 2010 | 07:26 AM
  #187  
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Originally Posted by VGergo
I'm just wondering too building a 2.3 or 2.4 and mivec head engine from an Evo 8 engine.
Ofcourse I know the 2.4 is better but hard decision because i have a good condition 4g63 block. But building a 2.4 mivec non of my parts need anymore from the oem 2.0 setup so I can sell the complete longblock.
The aim is as fast spool up as the stock engine stock evo9 turbo doing now with near 500/500 power level on E85 or 400/400 on european 100oct pump gas and dont push the turbo or the tune on the limit. Leave in some safety band.
Basically it will be DD car with more fun Sometimes amateur rally- auto x and like this and not for drag racing. On turbo thinking on the hta green, red 84mm, maybe the black or the new HKS. I'm really excite what will the dyno show with the other topic car the 2.4 and BB convert fpblack
Engine internal, I like the maperformance package with oem crank, map rods, the wider 6g bearings and wiseco hd pistons. It coud be a great combo for the price.

But what's up with reliableity ? In average these kind of built engines coud last as long as the stock on the same usage ? I heard that need to pay more attention on the rod bearings and after certain miles drop in new one, cost much less and simple work than a new engine. Any other known problem ?

If not the MAP engine internal i calculate with a more expensive options, the manley billet turbo stuff crank and aluminium rods. At my aim power level thinking on these more expensive parts or just go with the oem crank map rods combo ? Are the aluminium rods as good for dd driving, rally, some track days as the steel ? I know the weight is much less, the price is near the same as good steel one but will last as long too ? Or basically they are designed to 1/4 miles race high power rated 700whp++ engine ?
Just to give you an idea, both our 4g64 swapped RX-7 and our 4g64 EVO make over 1000whp (tons more on the crank if you factor in drivetrain loss through AWD system and an Auto (RX-7). Are running factory Mitsu cranks, just balanced and polished.
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Old Dec 9, 2010 | 08:07 AM
  #188  
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Originally Posted by maperformance
Just to give you an idea, both our 4g64 swapped RX-7 and our 4g64 EVO make over 1000whp (tons more on the crank if you factor in drivetrain loss through AWD system and an Auto (RX-7). Are running factory Mitsu cranks, just balanced and polished.
yes i know, that is way your setup in 1st place.. Do you run with brand new 4g64 crank or just pick up some good condition used ?
For runing Mivec head on 4g64 what further adapter need to purchase ? What is your suggestion on the headgasket ?

Last edited by VGergo; Dec 9, 2010 at 08:09 AM.
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Old Dec 9, 2010 | 08:13 AM
  #189  
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From: Cottage Grove, MN
We pick up good condition ones most of the time already in blocks so we have matching crank/blocks, and we mic them to make sure they are within spec and we polish and balance them. Any cranks that are cut are thrown away, we won't used cut cranks in house.

Mivec head on 4g64 block you need the oil line adapter which we sell and a water pump adapter/spacer.
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Old Dec 9, 2010 | 08:22 AM
  #190  
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Originally Posted by sublime44
Anyone have any insight into doing the timing belt on a 2.1? I've got a MAP 2.1l and will be putting the head on soon. The head has Comp 280s w/ adjustable gears and the cams were degree'd by the previous owner. The only info I've been able to dig up is just that they need to be degree'd and thats about it.
You will need to re-degree them sir as you are adding 6mm of deck height.
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Old Dec 9, 2010 | 08:59 AM
  #191  
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Originally Posted by maperformance
We pick up good condition ones most of the time already in blocks so we have matching crank/blocks, and we mic them to make sure they are within spec and we polish and balance them. Any cranks that are cut are thrown away, we won't used cut cranks in house.

Mivec head on 4g64 block you need the oil line adapter which we sell and a water pump adapter/spacer.
thank you Chriss ! What does cut cranks mean ?
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Old Dec 9, 2010 | 09:17 AM
  #192  
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Originally Posted by VGergo
thank you Chriss ! What does cut cranks mean ?
dont worry about it something that equals a blown motor quickly. Does not matter you should take the block crank etc to machine shop and have it balance blueprinted etc anywho
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Old Dec 9, 2010 | 09:18 AM
  #193  
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Originally Posted by VGergo
thank you Chriss ! What does cut cranks mean ?
That means that the bearing mating surfaces have been machined or "cut" down due to scarring on the bearing surface. These generally turn into bearing eating machines...due to messing with the hardening that the bearing surfaces go through and the machining basically taking that hardened portion of material off...
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Old Dec 9, 2010 | 09:35 AM
  #194  
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Poor information being spread currently on turning crankshafts.........
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Old Dec 9, 2010 | 09:47 AM
  #195  
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From: milwaukee, wi
If surface hardness is maintained, a turned crank should actually be less prone to spinning bearings as the smaller diameter decreases bearing speed.
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