intro - newbie incon tt owner
Thread Starter
Joined: Jul 2004
Posts: 562
Likes: 2
From: Halfway to Hell
intro - newbie incon tt owner Hi my name is Andrew and I've been lurking here for a couple months while trying to find the "right" car. While I originally was looking for something near stock or with choice mods I wound up looking at and picking up Tom Porter's car.... 
Now I am trying to catch up on all the tech I missed by not building it myself. I've been in contact with Tom, but I hate continually hitting him with stuupid questions as I'm sure he has better things to do. 
So, while I have always had a basic understanging of turbo charger systems, I am a little unsure about what maintenance I should be doing. One big issue is the scavenge pump. I know how important this little guy is but how do I monitor it? Also is there anyother stuff I should be doing beyond obvious things like changing the oil regularly?
Anyway glad to be here and I will try to contribute when I can! TIA!!
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Now I am trying to catch up on all the tech I missed by not building it myself. I've been in contact with Tom, but I hate continually hitting him with stuupid questions as I'm sure he has better things to do. So, while I have always had a basic understanging of turbo charger systems, I am a little unsure about what maintenance I should be doing. One big issue is the scavenge pump. I know how important this little guy is but how do I monitor it? Also is there anyother stuff I should be doing beyond obvious things like changing the oil regularly?
Anyway glad to be here and I will try to contribute when I can! TIA!!
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TECH Resident
Joined: Jan 2002
Posts: 956
Likes: 0
From: Phoenix, AZ
I am apparently one of the few that has not yet had a problem with the scavenge pump. Still working. I do nothing to maintain it, and I really don't know how you would . . .
And welcome!
- Dug
And welcome!
- Dug
TECH Fanatic
Joined: Nov 2001
Posts: 1,190
Likes: 0
From: Las Cruces, NM
As you stated the scavenge pump (if its the tilton) can be hit or miss depending on your driving style and luck. Toms car did not have scavenge tanks so that should make the pump last longer. On the scavenge pump never have the car just in one position, i.e have the pump running without the car on. If your going to keep the pump it might be smart to wire the pump relay to a pressure switch or to the fuel signal line. Pump is easy to rebuild and only has two parts that will fail. The parts that will fail are the check valve assembly or more likely the diaphragm. Parts are about $20 each. Some people have gotten only a few months out of the pump others have gotten more than a year.
A good synthetic oil and oil changes at around 3000 miles is a good idea. As far as the fuel system not sure what Tom was using. If its uses either of the aeromotive regulators, they don't work the best, but you can compensate for that.
Gary
A good synthetic oil and oil changes at around 3000 miles is a good idea. As far as the fuel system not sure what Tom was using. If its uses either of the aeromotive regulators, they don't work the best, but you can compensate for that.
Gary
Launching!
Joined: Dec 2001
Posts: 289
Likes: 0
From: Wallingford, CT
As to the pump, when it goes, you'll start burning oil. Barely noticable at first, but it turns into clouds at startup. There's a little flapper valve assembly which needs to be replaced. It takes me about 40 minutes to swap one, and they are about $20 each. I get about 10,000 miles out of them.
As long as the kit was installed and tuned correctly, it is pretty much trouble free. I've got 3.5 years and 35,000 on it. I'd get it on a dyno and measure the A/F soon.
Any thing else, just ask away, just realise that it might take more than 7 hours to get an answer.
As long as the kit was installed and tuned correctly, it is pretty much trouble free. I've got 3.5 years and 35,000 on it. I'd get it on a dyno and measure the A/F soon.
Any thing else, just ask away, just realise that it might take more than 7 hours to get an answer.
Last edited by smokinHawk; Aug 31, 2004 at 04:57 AM. Reason: salty attitude and using the Lords name in vein
Thread Starter
Joined: Jul 2004
Posts: 562
Likes: 2
From: Halfway to Hell
Sorry if I appear impatient!!!! just didnt want to fall off the page 
According to Tom the Tilton has been replaced with a Weldon unit recently. Does the pump need to run after the engine cuts off? is there a timer? I understand that part of the function is to prevent the oil from caking on the bearings so I want to be sure that stuff is working.
I am taking it to a shop wednesday for a dyno run and to look at the afr. It is supposed to tuned for 7-8 psi but only gets 5-6 as it is setup. I have tried adjusting the boost **** a little but I am not too crazy with it while I struggle to figure out all the systems. Really trying hard not to go nuts but, uuuhh, the boost thing is really addictive. I can see 317 heads, alky setup and 10 psi. uh oh here I go.
well first I want to be sure I can take care of the damn thing. 
thanks fo the replies! look forward to hanging out here for a long time
According to Tom the Tilton has been replaced with a Weldon unit recently. Does the pump need to run after the engine cuts off? is there a timer? I understand that part of the function is to prevent the oil from caking on the bearings so I want to be sure that stuff is working.
I am taking it to a shop wednesday for a dyno run and to look at the afr. It is supposed to tuned for 7-8 psi but only gets 5-6 as it is setup. I have tried adjusting the boost **** a little but I am not too crazy with it while I struggle to figure out all the systems. Really trying hard not to go nuts but, uuuhh, the boost thing is really addictive. I can see 317 heads, alky setup and 10 psi. uh oh here I go.
well first I want to be sure I can take care of the damn thing. thanks fo the replies! look forward to hanging out here for a long time
TECH Fanatic
Joined: Nov 2001
Posts: 1,190
Likes: 0
From: Las Cruces, NM
Originally Posted by TTExpreSS
Sorry if I appear impatient!!!! just didnt want to fall off the page
According to Tom the Tilton has been replaced with a Weldon unit recently. Does the pump need to run after the engine cuts off? is there a timer? I understand that part of the function is to prevent the oil from caking on the bearings so I want to be sure that stuff is working.
I am taking it to a shop wednesday for a dyno run and to look at the afr. It is supposed to tuned for 7-8 psi but only gets 5-6 as it is setup. I have tried adjusting the boost **** a little but I am not too crazy with it while I struggle to figure out all the systems. Really trying hard not to go nuts but, uuuhh, the boost thing is really addictive. I can see 317 heads, alky setup and 10 psi. uh oh here I go. well first I want to be sure I can take care of the damn thing.
thanks fo the replies! look forward to hanging out here for a long time
According to Tom the Tilton has been replaced with a Weldon unit recently. Does the pump need to run after the engine cuts off? is there a timer? I understand that part of the function is to prevent the oil from caking on the bearings so I want to be sure that stuff is working.
I am taking it to a shop wednesday for a dyno run and to look at the afr. It is supposed to tuned for 7-8 psi but only gets 5-6 as it is setup. I have tried adjusting the boost **** a little but I am not too crazy with it while I struggle to figure out all the systems. Really trying hard not to go nuts but, uuuhh, the boost thing is really addictive. I can see 317 heads, alky setup and 10 psi. uh oh here I go.
well first I want to be sure I can take care of the damn thing. thanks fo the replies! look forward to hanging out here for a long time
Pump does not run after the engine shuts off, first it is only a scavenge pump, it does not supply oil to the turbos. The turbos are water cooled and with the synthetic you should never have a problem with coking. Also each time you change the boost you will need a new tune, even if you are using the crappy stage II addon computer.
Gary
Trending Topics
Thread Starter
Joined: Jul 2004
Posts: 562
Likes: 2
From: Halfway to Hell
Gary, yeah I didn't even realize the turbos are water cooled until I found the diagrams I have posted on my site. Part of my visit to the dyno is to get the thing on a rack and go over the mechanicals. newbie alert!! well, the piggyback is gone and the secondary injectors bungs now hold a couple of forge BOV's (FMDV004 from what I can tell). The tune is off - really rich at WOT. so hope to dial it back in on the dyno.
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I have only had mine for 4000 miles...I think the previous owner had it for 15000. So far, no maintenance.....just add gas early and often as I can't keep my foot out of it. Seriously, you shouldn't have to do anything but clean the air filters every so often.
Thread Starter
Joined: Jul 2004
Posts: 562
Likes: 2
From: Halfway to Hell
early and often that is for sure. I haven't been able to record the "normal" use mileage cause I like to exercise the boost guage... still avg is over 20 with lots of highway miles. The last tank I used Shell Vpower and it seems to like that best so far. expecting 300+ miles from this tank. Only hit it about 3 times so far in 175 miles.
This kit was installed at 2500 miles and the car now has 37000. Next step is to get a couple of backup filters. Tom says the original were made by S&B Filter - P/N W1520. K&N P/N is RU1520. Posted in case that will help someone...
BTW: I was not the one who changed the boost. It was at 5-6 when I got it. Im gonna sneak back up to 7 - carefully.
This kit was installed at 2500 miles and the car now has 37000. Next step is to get a couple of backup filters. Tom says the original were made by S&B Filter - P/N W1520. K&N P/N is RU1520. Posted in case that will help someone...
BTW: I was not the one who changed the boost. It was at 5-6 when I got it. Im gonna sneak back up to 7 - carefully.
if you keep the boost at a reasonable level, say 6 to 9, it's a pretty maintainance free kit. It served me well for quite a while, but alas I out grew it
Only had to "fix" the pump once in 30k miles, then I went to a crank driven mechanical pump. Then I sold the kit.
Only had to "fix" the pump once in 30k miles, then I went to a crank driven mechanical pump. Then I sold the kit.
Teching In
Joined: Jun 2003
Posts: 13
Likes: 0
Andrew,
It does have the weldon 9200-A pump fitted along with a parker one way check valve installed between the pump and the oil pan. The weldon's don't use any sort of check valve in the pump so parking at angles can cause the oil from the pan to flow back thru the pump and fill the oil return lines (primarily passenger side). If left at an angle it will eventually fill back into the lowest turbo (passenger side) and cause the seals to open and release the oil into the compressor cover and turbine housing. This will cause smoke out of the exhaust on the turbine side and a puddling of oil in the passenger side intercooler. Note, i installed a drain on that intercooler while I was testing the weldon.
With the check valve installed the oil cannot flow from the pan backwards so it eliminated these issues. The tilton pump had an internal check valve to stop this. If you have any other questions, email me.
Tom
It does have the weldon 9200-A pump fitted along with a parker one way check valve installed between the pump and the oil pan. The weldon's don't use any sort of check valve in the pump so parking at angles can cause the oil from the pan to flow back thru the pump and fill the oil return lines (primarily passenger side). If left at an angle it will eventually fill back into the lowest turbo (passenger side) and cause the seals to open and release the oil into the compressor cover and turbine housing. This will cause smoke out of the exhaust on the turbine side and a puddling of oil in the passenger side intercooler. Note, i installed a drain on that intercooler while I was testing the weldon.
With the check valve installed the oil cannot flow from the pan backwards so it eliminated these issues. The tilton pump had an internal check valve to stop this. If you have any other questions, email me.
Tom
Thread Starter
Joined: Jul 2004
Posts: 562
Likes: 2
From: Halfway to Hell
hey Tom, thanks for the reply. I am trying to be self sufficient as possible but you are in my address book Got to say I am having a lot of fun driving and learning about the system. Feeling much better about the mechanical/maintenance aspect with the knowledge I've gained at this site and others 
Got to say I am having a lot of fun driving and learning about the system. Feeling much better about the mechanical/maintenance aspect with the knowledge I've gained at this site and others 
Welcome to the addiction of boost. Soon you will want more.
Before you know it your building your own system and running 8.82 @ 158.
Then all you can think about is 8.72 @ 165
Before you know it your building your own system and running 8.82 @ 158.
Then all you can think about is 8.72 @ 165
Originally Posted by TTExpreSS
Sorry if I appear impatient!!!! just didnt want to fall off the page
According to Tom the Tilton has been replaced with a Weldon unit recently. Does the pump need to run after the engine cuts off? is there a timer? I understand that part of the function is to prevent the oil from caking on the bearings so I want to be sure that stuff is working.
I am taking it to a shop wednesday for a dyno run and to look at the afr. It is supposed to tuned for 7-8 psi but only gets 5-6 as it is setup. I have tried adjusting the boost **** a little but I am not too crazy with it while I struggle to figure out all the systems. Really trying hard not to go nuts but, uuuhh, the boost thing is really addictive. I can see 317 heads, alky setup and 10 psi. uh oh here I go. well first I want to be sure I can take care of the damn thing.
thanks fo the replies! look forward to hanging out here for a long time
According to Tom the Tilton has been replaced with a Weldon unit recently. Does the pump need to run after the engine cuts off? is there a timer? I understand that part of the function is to prevent the oil from caking on the bearings so I want to be sure that stuff is working.
I am taking it to a shop wednesday for a dyno run and to look at the afr. It is supposed to tuned for 7-8 psi but only gets 5-6 as it is setup. I have tried adjusting the boost **** a little but I am not too crazy with it while I struggle to figure out all the systems. Really trying hard not to go nuts but, uuuhh, the boost thing is really addictive. I can see 317 heads, alky setup and 10 psi. uh oh here I go.
well first I want to be sure I can take care of the damn thing. thanks fo the replies! look forward to hanging out here for a long time
