New Project: Stroked and Boosted 6 Speed
07-12-2007, 11:26 PM
#1
New Project: Stroked and Boosted 6 Speed
Yeah so I'm getting the car back tomorrow after deciding not to let the Acura techs disassemble the engine because they would have said the boost was the cause of the pistons rings frying. The Acura tech manager said I was definetly getting blow by and more then likely it would be fried pistons as my mechanic originally told me a week ago.
Instead of doing the normal conversion of getting the J35A1 block we'll more then likely reuse the j32a2 block Purchase an Odyssey crank send some Odyssey Rods and CLS pistons out to JE or Crower to get them forged and get the pistons to 10.0:1 or 9.5:1. Hopefully lowering the compression will allow me to safely run a 9 pound pulley without the need for an intercooler after it gets tuned.
The engine will most likely be getting taken apart the following week so we'll take pictures to show the aftermath.
Which leaves me driving... a 150 HP (Crank) 4 Cylinder Accord til shes back up and running.
Instead of doing the normal conversion of getting the J35A1 block we'll more then likely reuse the j32a2 block Purchase an Odyssey crank send some Odyssey Rods and CLS pistons out to JE or Crower to get them forged and get the pistons to 10.0:1 or 9.5:1. Hopefully lowering the compression will allow me to safely run a 9 pound pulley without the need for an intercooler after it gets tuned.
The engine will most likely be getting taken apart the following week so we'll take pictures to show the aftermath.
Which leaves me driving... a 150 HP (Crank) 4 Cylinder Accord til shes back up and running.
07-13-2007, 12:11 AM
#3
318whp/289wtq @ 6psi
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Are you going to get your motor built by an engine builder?
I can't remember what Thinjim paid, but I paid $1200 for my rods from Crower and $875 for my pistons from CP. I believe the turnaround time for both was about 12 weeks however you can pay extra and get them quicker. Good luck.
I can't remember what Thinjim paid, but I paid $1200 for my rods from Crower and $875 for my pistons from CP. I believe the turnaround time for both was about 12 weeks however you can pay extra and get them quicker. Good luck.
07-13-2007, 02:23 AM
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Originally Posted by blk2001tlon19s
Are you going to get your motor built by an engine builder?
I can't remember what Thinjim paid, but I paid $1200 for my rods from Crower and $875 for my pistons from CP. I believe the turnaround time for both was about 12 weeks however you can pay extra and get them quicker. Good luck.
I can't remember what Thinjim paid, but I paid $1200 for my rods from Crower and $875 for my pistons from CP. I believe the turnaround time for both was about 12 weeks however you can pay extra and get them quicker. Good luck.
Turn around time on the pistons is closer to 6 months.
07-13-2007, 04:49 AM
#7
Most of the Honda Acura crankshafts and connecting rods are forged especially newer engines. The older the motor the worse off your chances are. Honda News is very vague about the technical stuff when it comes to cars around 03 and below. The newer Acuras are better documented, or at least from what they have posted.
The new TL/TLS, RL, MDX all have forged cranks and rods. The Honda counterparts seem only to have forged cranks with cast steel rods.
Just giving you some info in case this can save you time by having you only send out pistons to get forged which I think someone already did at JE so things should go quicker that way.
How about a sleeve and 90mm bore project for that 3.7 displacement
to go along with the SC 
The new TL/TLS, RL, MDX all have forged cranks and rods. The Honda counterparts seem only to have forged cranks with cast steel rods.
Just giving you some info in case this can save you time by having you only send out pistons to get forged which I think someone already did at JE so things should go quicker that way.
How about a sleeve and 90mm bore project for that 3.7 displacement
to go along with the SC
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thinjim was saying something like that..i was reading!
07-13-2007, 10:19 AM
#13
318whp/289wtq @ 6psi
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Originally Posted by mrsteve
Turn around time on the pistons is closer to 6 months.
Wow...only took my engine builder about 12 weeks to get them. Guess I got lucky.
07-13-2007, 10:25 AM
#14
Originally Posted by JBlueCLS6
Aren't the only crank and Rods we can use are from the 01-02 MDX and 02-04 Odyssey?
We can't use anything outside of the J35a1 and A3 I thought?
We can't use anything outside of the J35a1 and A3 I thought?
resleeving the j32a2 block to get 3.7 isn't really a great idea, there isn't a lot of room to play with, if it was N/A application you might be able to do it, but on boost the last thing you want is a thin cylinder wall.
sounds like a good project, who is doing the motor?
07-13-2007, 01:58 PM
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Originally Posted by JBlueCLS6
Initially the car was driven with the IMRC but then after hearing it should be removed it was driven disconnected.
07-13-2007, 02:01 PM
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Originally Posted by CleanCL
yresleeving the j32a2 block to get 3.7 isn't really a great idea, there isn't a lot of room to play with, if it was N/A application you might be able to do it, but on boost the last thing you want is a thin cylinder wall.
07-13-2007, 02:01 PM
#17
07-13-2007, 02:18 PM
#18
Originally Posted by blk2001tlon19s
Since when?
Wow...only took my engine builder about 12 weeks to get them. Guess I got lucky.
Wow...only took my engine builder about 12 weeks to get them. Guess I got lucky.
07-13-2007, 02:56 PM
#19
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Originally Posted by CleanCL
there were a few sets of pistons sitting on some shelves here and there... there were custom pistons made for the J32 long before most people know of.
ok.........
07-13-2007, 03:11 PM
#22
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Originally Posted by MSW 6SP
I was at the lab when jae concluded it was your pistons that was fried. Sorry to hear that but good luck with this project!
07-13-2007, 07:13 PM
#24
Originally Posted by CleanCL
yea you are right about those years. btw - the 3.5 crank from that year is forged. get it knife edged and polished, it's a heavy mofo. matching rods and bearings is vital. i would increase the oil pathways, you are going to generate a lot of heat, and the 3.5 has oil squirters in the RL.
resleeving the j32a2 block to get 3.7 isn't really a great idea, there isn't a lot of room to play with, if it was N/A application you might be able to do it, but on boost the last thing you want is a thin cylinder wall.
sounds like a good project, who is doing the motor?
resleeving the j32a2 block to get 3.7 isn't really a great idea, there isn't a lot of room to play with, if it was N/A application you might be able to do it, but on boost the last thing you want is a thin cylinder wall.
sounds like a good project, who is doing the motor?
Which Crank is forged? Is it a different part number?
I might be getting this project started sooner then I thought. HOpefully by the time shes up and running again It'll be in the early fall and I can get to the track.
And Jae @ the Lab will be working on the project but most of locals already knew that hahaha.....
07-13-2007, 07:24 PM
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Originally Posted by JBlueCLS6
Probably a few thousand... not like 10K probably under 5k. Then I read some posting about it messing up the engine.
This makes 4.
Supercharger Owners DON'T RUN THE IMRC!!!!!!!!!!!!!!!!!!!!!!!!!!
07-13-2007, 09:21 PM
#26
Originally Posted by JBlueCLS6
Which Crank is forged? Is it a different part number?
I might be getting this project started sooner then I thought. HOpefully by the time shes up and running again It'll be in the early fall and I can get to the track.
And Jae @ the Lab will be working on the project but most of locals already knew that hahaha.....
I might be getting this project started sooner then I thought. HOpefully by the time shes up and running again It'll be in the early fall and I can get to the track.
And Jae @ the Lab will be working on the project but most of locals already knew that hahaha.....
btw, www.oemacuraparts.com has supplied parts for over 2 of these conversions, mention me, jeremy from NY, they are very helpful and have the best prices anywhere.
07-14-2007, 01:00 AM
#29
Blown is Best
Originally Posted by CleanCL
there were a few sets of pistons sitting on some shelves here and there... there were custom pistons made for the J32 long before most people know of.
That's how I got a set of forged JE's that were built to yield 10.2 in a 3.5L.
07-14-2007, 10:48 AM
#30
Originally Posted by mrsteve
That was my post after a 3rd person had called me to tell me their motor was fried under boost.
This makes 4.
Supercharger Owners DON'T RUN THE IMRC!!!!!!!!!!!!!!!!!!!!!!!!!!
This makes 4.
Supercharger Owners DON'T RUN THE IMRC!!!!!!!!!!!!!!!!!!!!!!!!!!
That's interesting. I do recall that I was experiencing a brief detonation right at irmc activation. When I put my knock link on, each and everytime at roughly 3800 rpm it would light up. I added fuel a couple hundred rpm ahead of imrc activation and it took care of it. The same was happening when vtec kicked in, added fuel before and during vtec engagement and that took care of it.
My take is while the motor is under boost, the sudden opening of the door in the manifold gives the motor a blast of air causing a sudden slight lean condition, over time it adds up and can cause damage. I could be wrong, but that's been my experience with it, and the extra fuel before and during engagement elimated the knock. The knock link really helped showing the brief noise it sensed and went away after fuel was added.
07-14-2007, 01:50 PM
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Originally Posted by ThinJim
That's interesting. I do recall that I was experiencing a brief detonation right at irmc activation. When I put my knock link on, each and everytime at roughly 3800 rpm it would light up. I added fuel a couple hundred rpm ahead of imrc activation and it took care of it. The same was happening when vtec kicked in, added fuel before and during vtec engagement and that took care of it.
My take is while the motor is under boost, the sudden opening of the door in the manifold gives the motor a blast of air causing a sudden slight lean condition, over time it adds up and can cause damage. I could be wrong, but that's been my experience with it, and the extra fuel before and during engagement elimated the knock. The knock link really helped showing the brief noise it sensed and went away after fuel was added.
My take is while the motor is under boost, the sudden opening of the door in the manifold gives the motor a blast of air causing a sudden slight lean condition, over time it adds up and can cause damage. I could be wrong, but that's been my experience with it, and the extra fuel before and during engagement elimated the knock. The knock link really helped showing the brief noise it sensed and went away after fuel was added.
I agree with you entirely. The e-manage can easily add fuel prior to the IMRC opening and VTEC (start ramping up the fuel 400rpm prior to the engagement).
Without e-manage though this has proven to be dangerous. I'm sure with the e-manage equipped there is a significant jump in power at this point.
07-14-2007, 03:44 PM
#34
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Originally Posted by mrsteve
That was my post after a 3rd person had called me to tell me their motor was fried under boost.
This makes 4.
Supercharger Owners DON'T RUN THE IMRC!!!!!!!!!!!!!!!!!!!!!!!!!!
This makes 4.
Supercharger Owners DON'T RUN THE IMRC!!!!!!!!!!!!!!!!!!!!!!!!!!
07-14-2007, 04:31 PM
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Originally Posted by typeR
supercharger owners should swap out to S2000 injectors and ill bet theyll be just fine
Or...
They can keep the stock injectors, re-calibrate the FPR, and run the e-manage. No need to spend the extra cash on the injectors.
07-15-2007, 02:17 AM
#39
Blown is Best
Originally Posted by jproy
Does the IMRC need to be disconected witht he low boost pulley? I have read that it only needs to be disconected witht he HBP.
07-15-2007, 08:22 PM
#40
COol project Jay, cant wait to take a spin when its all done!!! But, as my experience with custom stuff goes...whatever time frame you have, double it--and thats when the car will be realistically finished! Jae does great work which Im sure you know....I dont see your cars over on Plainfield anymore, move back to CT or what?