Teach me about ITR 325's

[Gary L]

Jeff - I would be of the opinion that we're doin' fine, just the way we are. If you break all those engine/chassis combinations out to separate line entries, IMO you most likely will not end up with significantly more 40 year old Volvo's in IT than you have today.

Kirk - Does your "old Volvo" reference mean you guys (ITAC) finally discussed my letter on the 142/144 "Notes" entry in the ITCS? I had almost forgotten about it to be honest.

[JoshS]

Jeff - I would be of the opinion that we're doin' fine, just the way we are. If you break all those engine/chassis combinations out to separate line entries, IMO you most likely will not end up with significantly more 40 year old Volvo's in IT than you have today.

Kirk - Does your "old Volvo" reference mean you guys (ITAC) finally discussed my letter on the 142/144 "Notes" entry in the ITCS? I had almost forgotten about it to be honest.

Gary, we haven't met since you and I spoke on the phone after the last meeting. We meet monthly.

[Knestis]

We talked about how we'd tackle the "old Volvo question," as part of our ongoing discussion about how to reconcile a lot of requests that have been submitted about ITB cars. It was an example of how there seemed to be lots of different configurations on a given spec line (or split among spec lines) so it was a handy case study in clarifying how we think about them.

We got some input but we're not done with the question.

K

[Z3_GoCar]

Josh,

How much do you think port matching is worth?? I bet it's about 4hp..

[madrabbit15]

I think what Gary was referring to was the fact the 140 volvo came in different engine configurations. The high compression bottom ends were delivered carberated, and the lower compression bottem ends were fuel injected. The car never came with high compression and fuel injection. I was told this years ago, but never knew it was true or not.

But when you put all all those configurations on one spec line it allows you to mix and match.


Derek

[Gary L]

I think what Gary was referring to was the fact the 140 volvo came in different engine configurations. The high compression bottom ends were delivered carberated, and the lower compression bottem ends were fuel injected. The car never came with high compression and fuel injection. I was told this years ago, but never knew it was true or not.

But when you put all all those configurations on one spec line it allows you to mix and match.


Derek

But as others have pointed out, if what you say were true, it would be illegal to put FI on the high compression engine, as you would be "...creating a model".

But just for the record, let's be perfectly clear; there was a high compression fuel injected engine, complete with the "right" head and the "right" cam, sold in the 140 series Volvo in the US... the 1971 142E. So purely from a horsepower perspective, everyone (via update/backdate) "builds" a '71 142E, regardless of which of the 6 model years they are using for a chassis. All perfectly legal, no gray area whatsoever.

[Knestis]

I think what Gary was referring to was the fact the 140 volvo came in different engine configurations. The high compression bottom ends were delivered carberated, and the lower compression bottem ends were fuel injected. The car never came with high compression and fuel injection. I was told this years ago, but never knew it was true or not.

But when you put all all those configurations on one spec line it allows you to mix and match.


Derek

Does not.

Update/backdate defines "assemblies" in such a way that, while there will be some potential for mix-and-match, we can't completely cherry pick what we do. For example, we've got to use the entire short block as an assembly. I can't put the OBDII-spec head on my OBDI-spec block. In the Volvo example, the entire block/head assembly has got to stay in one piece. If the later FI "assembly" will bolt to that head, OK. If not, too bad.

(Taking your scenario as a given, for illustrative purposes.)

K

[madrabbit15]

Does not.

Update/backdate defines "assemblies" in such a way that, while there will be some potential for mix-and-match, we can't completely cherry pick what we do. For example, we've got to use the entire short block as an assembly. I can't put the OBDII-spec head on my OBDI-spec block. In the Volvo example, the entire block/head assembly has got to stay in one piece. If the later FI "assembly" will bolt to that head, OK. If not, too bad.

(Taking your scenario as a given, for illustrative purposes.)

K

agreed.....

I was merely stating what gets interpreted most of the time. I 100% agree that creating a model is not legal. When the GCR puts multiple models in the same spec line 99% of racers are going to take the best from all models on the same line. Its not right but we all know how racers are.

As for the Volvo, I am glad Gary clarified. I had only heard of that situation and had no personal knowledge myself.