Any one have any experience with these, positive or negative coments?
http://www.protopline.com/racingaluminumhonda.asp

 

Interesting, says those heads are made of cast iron.

 

I'd have trouble putting anything on my car from a company that was advertising it as a "V-TEC" product

 

No, they are new cast Aluminum. They are good enough for Paul Gentilozzi, Donny Shatz, Johnny Miller and many more. I am sure they have some idea what they are making.


Modified by DB1-R81 at 5:25 PM 11/8/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DB1-R81 &raquo;</TD></TR><TR><TD CLASS="quote">No, they are new cast Aluminum.</TD></TR></TABLE>

Then I suggest they fix their ad copy.
Features:
.
.
.
*Premium, consistent cast iron for increased resistenace to cracking

 

Look here, they just have a general description of their head features under the description. "Typical Design Features:"

http://www.protopline.com/racingaluminum.asp

 

Which is where I copied the above bit from.
Nowhere in that blurb does it actually say the head is Aluminum, and it seems to suggest that it is not.
I'm not really trying to be difficult, but their text discription is misleading, except for the link that says something about Aluminum Honda.

Typical Design Features:

* Additional port material for custom CNC porting
* Stonger and thicker deck to support higher cylinder pressures from turbocharged, supercharged or nitrous applications.
* Precision machined, high grade billet cam caps provide a stable and robust valve train to support high rpm, high lift cam configurations.
* Optimal port design for greater flow and enhanced engine dynamics.
* Unique multi-angle seat design for increased horsepower.
* Spring seats cut for performance springs.
* Hardened seats for severe duty operation.
* Improved valve guide material - for tighter tolerances and extended durability
*Premium, consistent cast iron for increased resistenace to cracking
* Close tolerance casting and machining for precise component fit,
providing the best in performance and reliability

Furthermore I wonder if these are the B16/ITR type heads or the GSR type heads, since these two seem to have different combustion chamber volumes.

 

I looked them over at SEMA this past week they are Al. and appeared to be put together quite nicely.


Modified by DB1-R81 at 5:40 PM 11/8/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DB1-R81 &raquo;</TD></TR><TR><TD CLASS="quote">I looked at them at SEMA this past week they are Al.</TD></TR></TABLE>


Solly.

 

ed, you made this thread funny.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris93Si &raquo;</TD></TR><TR><TD CLASS="quote">I'd have trouble putting anything on my car from a company that was advertising it as a "V-TEC" product </TD></TR></TABLE>

Keep in mind that Honda itself has used that spelling at times...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DB1-R81 &raquo;</TD></TR><TR><TD CLASS="quote"> They are good enough for Paul Gentilozzi, Donny Shatz, Johnny Miller and many more. I am sure they have some idea what they are making.
Modified by DB1-R81 at 5:25 PM 11/8/2003</TD></TR></TABLE>

Since when did these guys drive Hondas?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">

Keep in mind that Honda itself has used that spelling at times... </TD></TR></TABLE>

Hmmm didn't know that, when did they use it?

 

Honda probably did it by accident, these guys probably did it because Honda probably wouldn't let them use "VTEC"!

 

Hello Zygspeed,

You wrote:
"I'm not really trying to be difficult"

You may not be trying but your doing a darn good job.
Since when did Honda write the rules on internal combustion engines?
Honda engineers use to come to my fathers engineering lab at Chrysler crying for engine info in the 60’s and 70’s you think they know it all now?

 

just ship them to Japan and have some guy off the street in Tokyo endorse them and you won't be hassled here as much...

if you add a name of a utensil meant to reflect a corner at Suzuka to the V-TEC, you'll get less hassle too.

I find very little tech assessment of the heads themselves going on here...just someone's **** retentiveness about one line itself...how about living up to the name of this website and actually discussing tech like we used to do here?

it's interesting that even the domestics are accepting 4 valve pentroof combustion chambers and DOHC. The latest Trans Am Jaguar (read Ford) 4.2 L engines are incorporating honda-like technology.

If it's derived from that racing development program, then perhaps we should look at what they offer instead of acting like a bunch of stuck up JDM only hype loving noobs?

 

DB1-R81

True, at first I wasn't trying to be difficult.
I was merely trying to point out that their ad copy was not as descriptive as it could have been, and possibly in error.
I even appologized and said I was sorry, since you had apparently confirmed in person that their head is indeed made of Aluminum. So far so good.

However, as a former patent examiner one occupational hazard is taking things literally (as written). Furthermore, I was merely trying to point out an inconsistancy with respect to their ad copy (which does indeed to be misrepresentative).

One of the only reasons I've even opened this topic was because I'm somewhat interested in the product they purport to be selling, along with a Dart/Payne block to build up my next turbo motor.

Then again, I'm a bit tired of this place lately and will just have to consider getting a GT3 instead. PS ... I hear Carbon/Carbon brakes rock!


Modified by zygspeed at 12:13 AM 11/9/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DB1-R81 &raquo;</TD></TR><TR><TD CLASS="quote">Honda engineers use to come to my fathers engineering lab at Chrysler crying for engine info in the 60Â’s and 70Â’s you think they know it all now?</TD></TR></TABLE>

Damn, that's recent history! Lol!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DB1-R81 &raquo;</TD></TR><TR><TD CLASS="quote">Honda engineers use to come to my fathers engineering lab at Chrysler crying for engine info in the 60’s and 70’s you think they know it all now?</TD></TR></TABLE>

Yeah, one more thing!
Was that about the time that Chrysler/Dodge/Plymouth was about to go out of business and deferred to sticking a turbo four banger in just about everything in order so survive, in addition to a US Government bailout?

Or am I hitting below the belt now?
Frankly, ... Oh wait, Plymouth hasn't been around for years now.
If you've got something worthy and appropriate to drive bring it to the expo, and we'll settle on the track.


Modified by zygspeed at 12:03 PM 11/9/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris93Si &raquo;</TD></TR><TR><TD CLASS="quote">Hmmm didn't know that, when did they use it?</TD></TR></TABLE>

I believe it appeared on the decals on certain air boxes, and it may have been used on some other decals as well. I recall a thread a while back that actually had a photo of one of the stickers, with VTEC spelled with a hyphen

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Michael Delaney &raquo;</TD></TR><TR><TD CLASS="quote">I find very little tech assessment of the heads themselves going on here...just someone's **** retentiveness about one line itself...how about living up to the name of this website and actually discussing tech like we used to do here?</TD></TR></TABLE>

Tuan, I too miss the much more technical discussions that used to take place here. However, after looking over the Pro Topline website, there isn't a terrible amount of actual technical information given.

The heads appear to be geared towards the very high-power FI segment (which is almost exclusively comprised of drag racers, and I think that's where you'll wind up seeing these used in the greatest numbers). They're also obviously not a bolt-on, plug-and-play part, and, valves aside, should probably be worked-over by an experienced head porter anyway (depending on which model head is purchased). I'd be interested in seeing some shots of the chambers and ports, and also some flow-bench data. I'm also curious as to just how much better one of these heads can be made to flow, compared with an OEM Honda head that has been properly welded and P&P'd. As I said, I imagine the most significant gains would be found on engines with very heavy breathing needs (i.e. high-boost FI) rather than even some of the more highly-modified N/A setups. In the end, I think it will probably be difficult for the majority of enthusiasts to justify a $1500-$2600 head though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DB1-R81 &raquo;</TD></TR><TR><TD CLASS="quote">I looked them over at SEMA this past week they are Al. and appeared to be put together quite nicely.


Modified by DB1-R81 at 5:40 PM 11/8/2003</TD></TR></TABLE>


as did i....and i was quite dissappointed with their customer service at sema....i was the only one in the both and spent about 5-10 minutes looking at the head, taking pictures etc and yet no one came over to ask if they could help!!!!!!

 

 

I emailed them and asked a bunch of tech questions. they've read my email. Think they'll reply? hopefully.

 

hmmm interesting