Guidance/Advice needed
Everyone,
I chose this section, because it gets no response elsewhere.
I am in the process of building a B18A, and am kinda up in the air about whether to go NA, or turbo. No decision as yet.
I DO know that I want to prepare the shortblock (currently underway) for higher than normal RPM. This is going to be a daily driver, but I would like to see maybe 8500-9500 RPM safely. Is this out of the question for a daily driver?
THis is what I have completed already:
1.Portmatched the head, intake IN/OUT, and have merely deburred it some.
2.Machined .020 from the head, and might have to on the block deck.
3.Recut the Valves 3 angle, and lapped the seats.
What else should I do? The only other *real* engine work I have done was to swap heads on a d16A6, and use the stupid TB style DX injection on it. Therefore, I am not totally newbie, but I am kinda still cutting teeth.
I would appreciate some help.
Just basic guidelines for me to start research on would be great!
Thanks,
Scott
I chose this section, because it gets no response elsewhere.
I am in the process of building a B18A, and am kinda up in the air about whether to go NA, or turbo. No decision as yet.
I DO know that I want to prepare the shortblock (currently underway) for higher than normal RPM. This is going to be a daily driver, but I would like to see maybe 8500-9500 RPM safely. Is this out of the question for a daily driver?
THis is what I have completed already:
1.Portmatched the head, intake IN/OUT, and have merely deburred it some.
2.Machined .020 from the head, and might have to on the block deck.
3.Recut the Valves 3 angle, and lapped the seats.
What else should I do? The only other *real* engine work I have done was to swap heads on a d16A6, and use the stupid TB style DX injection on it. Therefore, I am not totally newbie, but I am kinda still cutting teeth.
I would appreciate some help.
Just basic guidelines for me to start research on would be great!
Thanks,
Scott
if you want to be able to rev from 8500-9500 consistently, I suggest getting your bottom end built as well. Only problem is you havent decided yet on N/A or F/I...but either way, you need to get your crank balanced and pistons/rods replaced. It's up to you what CR on pistons...
definately get ARP head studs and rod bolts, I would also suggest getting new bearings (ACL)....Cams are going to depend on FI/NA as is pistons. If you go FI what do you want to boost to? That may also dictate if you should sleeve or not... Granted a smaller than 2l motor is usually a good candidate for sleeving.. There are really tons of variables that play on FI/NA so first step to figure that out!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by -KangaRod- »</TD></TR><TR><TD CLASS="quote">are you dead set agains't using VTEC? The biggest performance and potential gain you will see (NA or Turbo) will be the addition of a VTEC head.</TD></TR></TABLE>
turbo ls on low boost can push over 250 at the wheels with stock internals. a vtec head aint gonna do that.
turbo ls on low boost can push over 250 at the wheels with stock internals. a vtec head aint gonna do that.
please tell me that you are planning on using the Vtec head. you will have rocker arms all over your cyl head if you try to go past 8500 with an LS head.
oh and if your really building it it will be real difficuilt to try and build for both. high cr vs low cr, big duration cams vs small duration, ect.
oh and if your really building it it will be real difficuilt to try and build for both. high cr vs low cr, big duration cams vs small duration, ect.
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Jabinya
All Motor / Naturally Aspirated
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Jul 26, 2007 04:22 PM



