So about a month or so ago I got my car back after BT install and after 600 miles the oil pump decided to fail causing the crank to eat the #1 rod bearing I then pulled it apart and took the crank in to be machined/balanced got a new oil pump and new coated rod/main bearings I then put it all back together to find that the crank had an uneven spot unfortinately I noticed this because it once again ate the #1 rod bearing.

Anyways my solution was origanally to replace the crank but since I had planned on going 2.0 stroker eventually I've decided to do it now.

And the question I want higher compression for better low end response 9.5:1 was what I was thinking but 10:1 also has me intrigued so wondering a few things
(1) can I run 10:1 c/r with 30psi of boost? (GT3076R)
(2) I think the tune should adapt what do you think? (Tapp 1kcc)

Car gets babied during week with minimum boosting and would only see the 30psi on weekends for a few pulls at the drag strip and some mountain sprints

 

The psi will depend on the octane level and if the turbo can move that much lb/min with a 2.0. But you can use 10:1 on your car, there are a few people running it, mine are actually higher than the 9.25:1 that they were claimed to be. The turbo should be almost if not completely out of steam on a that setup @30psi. Its good for about 525whp and people are making 500whp on a 1.8L with 9.5:1 c/r and around 30psi. with 104+ octane

Dont know how well the Tapp tune will adapt, i would talk with arnold@ pag since he has run these setups more than anyone.

 

Just double checked with Adam@ uni and we are running the same wiseco's and they come out to 10.16:1 with the NA 20v gasket and unserfaced head/block

 

Thats a pretty big jump from what they claim to actual results do you think the JE customs are closer to what they actually claim I dont want to order 10:1 and end up with 11:1 lol

 

Think wiseco is the only company that had that problem. I know supertech is what they claim, JE should since they also take into account the skirt issue for the squirters.

 

I know that 10:1 gives better off-boost engine performance, but is that really better than 9:1 on a turbo engine?

 

I talked to chris@eurodyne and he recomended not to go 10:1 as it might actually lower hp and he told me if my current file doesnt addapt to the 2.0 that he has a stroker file already

 

There is no possible way that the slight increase of compresson can lower hp, only raise it. The only way it could mess with power is with the timing curve, which can always be adjusted. There are 1000's of Honda guys running atleast 10-10.5:1 compresson and making 400-600whp.

The reason to lower it is to run more psi safely on pump. Not really important for a street car that isnt going to be in boost the majority of time like on a track car. I personally wanted compresson so i dont have to rely on boost to get the car moving. Aslong as you keep it in the 9-10:1 range, a 2.0 will be peppy as hell. If your not comfortable with 10:1, just go 9.5:1

 

He thinks that the extra compression is going to cause me to drastically lower boost but other people I've talked to have said that it shouldnt be a problem even if it equates to a slight loss up top I wouldnt really care because I do mostly out of boost city driving and staying under 35mph right now sucks

 

Yes you would need to run less psi on pump gas, but thats only like 1-2psi but that is made up with the compresson and you will have more power, much more in fact before boost than you would with 9:1 and lots more than those that run 8.5:1. There are even people that run 10:1 flat top pistons on stock disp and 76r's. I dont think i would run more than 22psi anyways on pump, so the slight increase is nothing.