Intakes
#1
Intakes
I couldn't find our discussion about intakes from a while back. I think it may be buried in the many pages of Calvin's 500hp thread.
So, I thought I'd start a new thread where we can put all discussions about intakes, and they will be easy to find with a forum search.
To start the thread off, I thought I'd share these cool long-runner intakes from an Aussie friend's shop. They look a lot like the ones AJ6 Engineering sold many years ago, but, I can't say for certain.
So, I thought I'd start a new thread where we can put all discussions about intakes, and they will be easy to find with a forum search.
To start the thread off, I thought I'd share these cool long-runner intakes from an Aussie friend's shop. They look a lot like the ones AJ6 Engineering sold many years ago, but, I can't say for certain.
Last edited by JagZilla; 07-25-2014 at 11:09 AM.
#4
#5
i just posted on a different thread!
some same pix of the AJ6 inlet system, some pix of a couple types.
cross ram is from Forward engineering,Roger Bywater.
AJ6 plenum sizing is seems to be the prefered setup,instead of open trumpets, but the LIster Storm used a large plenum airbox/ filter setup covering the whole top of engine, i had pix of it at Daytona race 1995-96, but they got deleted on a PC cleanup.
some same pix of the AJ6 inlet system, some pix of a couple types.
cross ram is from Forward engineering,Roger Bywater.
AJ6 plenum sizing is seems to be the prefered setup,instead of open trumpets, but the LIster Storm used a large plenum airbox/ filter setup covering the whole top of engine, i had pix of it at Daytona race 1995-96, but they got deleted on a PC cleanup.
#6
couple pix inlet manifold, and dyno tests info.
Chevy 4 cylinder with boost, ECOTEC. hope i dont run into one of those chevy Cobalts.
the manifold design is in another thread by JaZ, but on an XJS V12, follows same engineering,without boost.
this is the new way of racing engines, 122 cu.in. vs 427 cu.in displacment, close to same power levels!
Chevy 4 cylinder with boost, ECOTEC. hope i dont run into one of those chevy Cobalts.
the manifold design is in another thread by JaZ, but on an XJS V12, follows same engineering,without boost.
this is the new way of racing engines, 122 cu.in. vs 427 cu.in displacment, close to same power levels!
#7
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#8
Check this out.
My FB friend, is bringing a black monster back to life down in Melbourne.
He had this manifold CNC'd just for this project.
The engine in the photo is just the mock up engine. The intakes are going onto a 7.4L '91 LeMans spec motor.
Here is the car it's going into:
My FB friend, is bringing a black monster back to life down in Melbourne.
He had this manifold CNC'd just for this project.
The engine in the photo is just the mock up engine. The intakes are going onto a 7.4L '91 LeMans spec motor.
Here is the car it's going into:
Last edited by JagZilla; 08-08-2014 at 06:35 PM.
The following 2 users liked this post by JagZilla:
Flint Ironstag (08-07-2014),
ronbros (08-07-2014)
#10
#11
Scott:
Any chance you can find out what the runner diameter and runner length are?
I have long been enthused about crisscrossing the runners to get that length. If you can get rid of the dizzy and throttle tower, and then use care to place the injectors and still get access to the plugs (I know, I know), this would give a pretty nice arrangement, with what would likely be a pretty decent bump in the torque curve at much lower rpm levels.
Cool stuff, keep those pix comin'!
Any chance you can find out what the runner diameter and runner length are?
I have long been enthused about crisscrossing the runners to get that length. If you can get rid of the dizzy and throttle tower, and then use care to place the injectors and still get access to the plugs (I know, I know), this would give a pretty nice arrangement, with what would likely be a pretty decent bump in the torque curve at much lower rpm levels.
Cool stuff, keep those pix comin'!
#12
Mike, I'll see what I can do. You made me wonder how he's going to change plugs with that setup.
Like you, hes a genuine type of guy who enjoys talking Jaguar. He also has a long family history, engineering & racing background with Jags (and Astons) in general, and XJSes in particular, so, he can pretty much make them do anything he wants them to do.
Like you, hes a genuine type of guy who enjoys talking Jaguar. He also has a long family history, engineering & racing background with Jags (and Astons) in general, and XJSes in particular, so, he can pretty much make them do anything he wants them to do.
Last edited by JagZilla; 08-08-2014 at 06:37 PM.
#13
Scott:
Any chance you can find out what the runner diameter and runner length are?
I have long been enthused about crisscrossing the runners to get that length. If you can get rid of the dizzy and throttle tower, and then use care to place the injectors and still get access to the plugs (I know, I know), this would give a pretty nice arrangement, with what would likely be a pretty decent bump in the torque curve at much lower rpm levels.
Cool stuff, keep those pix comin'!
Any chance you can find out what the runner diameter and runner length are?
I have long been enthused about crisscrossing the runners to get that length. If you can get rid of the dizzy and throttle tower, and then use care to place the injectors and still get access to the plugs (I know, I know), this would give a pretty nice arrangement, with what would likely be a pretty decent bump in the torque curve at much lower rpm levels.
Cool stuff, keep those pix comin'!
Here's the conversation:
- Scott
- I've been looking at that wonderful ITB intake setup, and I've shown it to some XJS guys on the web. We're all anxious to know how well it performs.
One guy wanted me to ask you what the length and diameter is on those runners. My own question to you is: How do you change the spark plugs with this arrangement? I'm also anxious to see more details of your black monster (the condition it's in now, as well as what will be required to bring it back to life). - J
- Hi Scott, I'm keen to see what it does too.
- J
- The runner diameter is around 40mm and tapers down a few mm at the inlet port side. The length is around 9 inches, however we will add a yet to be determined short length bell mouth. It is anticipated to have a good result for a 6 litre engine, however I'm not sure it would be easily achievable to develop for a 7 or 7.4 litre engine, you would struggle to flow enough air.
- J
- At the moment it will be extremely difficult to change plugs with the system still in place, however we are working on improving that
- Scott
- Thanks. I'll pass that info along to some VERY interested XJS owners. Have a great weekend, and please keep us updated about this project.
Last edited by JagZilla; 08-08-2014 at 07:03 PM.
The following users liked this post:
Flint Ironstag (08-08-2014)
#14
#16
#18
Mike,
I don't think a panel beater could replicate the insides of these plenums. I gather from Jordan, that there is something special about the ridges and grooves on the inside. I asked if he was going to polish and smooth the inside, and his reply of "I'm going to leave them as they are" had a bit of wry "Trust me. I know what I'm doing here" attitude. Knowing his history with British racing, and performance cars (Astons, as well as Jags), I have to believe him. Also, that CNC machine could have easily smoothed out the insides, but, there is a precise pattern inscribed there, so, he must have inside knowledge of a particular airflow theory which he's counting on to add a few extra ponies.
I don't think a panel beater could replicate the insides of these plenums. I gather from Jordan, that there is something special about the ridges and grooves on the inside. I asked if he was going to polish and smooth the inside, and his reply of "I'm going to leave them as they are" had a bit of wry "Trust me. I know what I'm doing here" attitude. Knowing his history with British racing, and performance cars (Astons, as well as Jags), I have to believe him. Also, that CNC machine could have easily smoothed out the insides, but, there is a precise pattern inscribed there, so, he must have inside knowledge of a particular airflow theory which he's counting on to add a few extra ponies.
#19