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Old 05-12-2007   #21
DUBGTA88
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by Fred91GTA
No no, that was the first design SLP runner. The new design which is what you have now all have the same runner tubes. Just that all the runners are siamesed equally. Just enlarge your ports and the siamese to get more upper rpm hp.

IMHO, the hands down best long tube runners are the AS&M semi-siamesed runners. These things are huge and have the same basic design as the SLP runner new design, but extend the siamese about halfway down. I have a set too... Just finishing up the polish work on them...
So the bigger the port the better right? I was thinking about doing some thing like these guy in TGO ill post the wedsite right know. But tell me if his porting looks good please. Where do you get yours polished at?
Heres the link. http://www.thirdgen.org/siameseport

Last edited by DUBGTA88; 05-12-2007 at 11:53 AM.
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Old 05-12-2007   #22
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by fearthisgta
Fred,

Do you have a pic showin the difference between the 1st and 2nd design runners? The reason I say this is b/c I think I had a set and sold them for a 100 bucks!
Cliff I think this is the first design. Heres the link http://www.thirdgen.org/slptpibuild-hpp-feb89 Its a good article you should read it.
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Old 05-12-2007   #23
Fred91GTA
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by DUBGTA88
So the bigger the port the better right? I was thinking about doing some thing like these guy in TGO ill post the wedsite right know. But tell me if his porting looks good please. Where do you get yours polished at?
Heres the link. http://www.thirdgen.org/siameseport
I polished them myself.
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1991 Trans Am GTA... Hopefully again
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Old 05-12-2007   #24
DUBGTA88
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by Fred91GTA
I polished them myself.
How did you do that?
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Old 05-12-2007   #25
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Re: Good Deal On Some Slp Runners!!!!!!!!

Ok guys I took the of the plenum, runners, and the base. The problem im having know is I cant take the injecters off. I took the four nuts off and there was something like clips on the injectors that I was able to move. Still nothing is there something im missing.
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Old 05-13-2007   #26
Fred91GTA
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by DUBGTA88
How did you do that?
With lots of sweat, tears, and cussing... Mostly cussing and sweat though. I had to sand down the runners, then buff it out. The whole process took me all of 2 weeks to do.

As for the injectors, there are retaining clips that are holding the injectors in place. If you're taking out the injectors, you turn these until they are in the open position, then you literally just pull hard to get the injectors out. While they are out, it may be a good idea to replace your O-rings and the injector clips. I rebuilt my whole fuel rail assembly with new O-Rings.
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Old 05-13-2007   #27
FearThisGTA
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by DUBGTA88
Cliff I think this is the first design. Heres the link http://www.thirdgen.org/slptpibuild-hpp-feb89 Its a good article you should read it.
Thanks.
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 05-13-2007   #28
DUBGTA88
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by Fred91GTA
With lots of sweat, tears, and cussing... Mostly cussing and sweat though. I had to sand down the runners, then buff it out. The whole process took me all of 2 weeks to do.

As for the injectors, there are retaining clips that are holding the injectors in place. If you're taking out the injectors, you turn these until they are in the open position, then you literally just pull hard to get the injectors out. While they are out, it may be a good idea to replace your O-rings and the injector clips. I rebuilt my whole fuel rail assembly with new O-Rings.
How can I clean them or make sure they are working properly?
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Old 05-13-2007   #29
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by fearthisgta
Thanks.
Anytime hey cliff did you get to read the article? Well there was a part in the article called stock alternatives. They said they removed the under hood scoops to let under hood heat out. Then they unplugged the egr valve and they feelt the difference. After doing all that they buy a 160-degree thermostat. Then they cranked up the timing on the car to 12 degrees. After doing all that they when to the track and hit 14.18. Do you think all that might work or help a little?
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Old 05-13-2007   #30
Fred91GTA
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by DUBGTA88
How can I clean them or make sure they are working properly?
When i took apart my fuel assembly, I had found that 3 of my stock injectors were no longer functioning properly. I could tell because of the heavy black deposits where fuel was leaking out. Also explained the gas smell I was getting whenever I had the car on for long periods of time. I had the Multec design fuel injectors and those are prone to failure anyway, so I bought a set of Ford Motorsport 24lb blue top injectors. Beware, getting bigger injectors means having to burn a new chip. I also had a few leaks in the fuel rail assembly itself. A new set of O-rings for the fuel rail assembly solved those problems.

You have an 88 GTA so you should have the earlier Bosch injectors. These can be sent out for cleaning and flow matching. www.cruzinperformance.com does this service. I'd also get a new set of O-rings for the injectors and new clips. I get all my stuff from www.tpiparts.net. I would go through my dealer, but all the parts guys around here are fat old lazy bums that are completely incompetent. Mixed with the good old New York City attitude and you start to see why I'm willing to pay a little more plus shipping for TPI parts.
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Old 05-13-2007   #31
FearThisGTA
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by DUBGTA88
Anytime hey cliff did you get to read the article? Well there was a part in the article called stock alternatives. They said they removed the under hood scoops to let under hood heat out. Then they unplugged the egr valve and they feelt the difference. After doing all that they buy a 160-degree thermostat. Then they cranked up the timing on the car to 12 degrees. After doing all that they when to the track and hit 14.18. Do you think all that might work or help a little?
Naaa, not yet, been busy today with it bein Moms day and all, I hope to get time tomorrow to read it. Again thanks.
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 05-14-2007   #32
DUBGTA88
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by Fred91GTA
When i took apart my fuel assembly, I had found that 3 of my stock injectors were no longer functioning properly. I could tell because of the heavy black deposits where fuel was leaking out. Also explained the gas smell I was getting whenever I had the car on for long periods of time. I had the Multec design fuel injectors and those are prone to failure anyway, so I bought a set of Ford Motorsport 24lb blue top injectors. Beware, getting bigger injectors means having to burn a new chip. I also had a few leaks in the fuel rail assembly itself. A new set of O-rings for the fuel rail assembly solved those problems.

You have an 88 GTA so you should have the earlier Bosch injectors. These can be sent out for cleaning and flow matching. www.cruzinperformance.com does this service. I'd also get a new set of O-rings for the injectors and new clips. I get all my stuff from www.tpiparts.net. I would go through my dealer, but all the parts guys around here are fat old lazy bums that are completely incompetent. Mixed with the good old New York City attitude and you start to see why I'm willing to pay a little more plus shipping for TPI parts.
So if I would to get bigger injectors I would have to burn a chip? Can I do this and get the chip done for my other mods all in the same chip? Also do you know a company that does them for a good deal? Before I forget what kind of gaskets should I buy so I can port my base and still match them up with the runners. I want to make the base a little bigger and do the samething to my runners. I want to make sure my engine can get some air.
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Old 05-14-2007   #33
DUBGTA88
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by fearthisgta
Naaa, not yet, been busy today with it bein Moms day and all, I hope to get time tomorrow to read it. Again thanks.
No thank you for all the help. You to guy have been really helpfull. Well I really like the article it gave some good performance pointers for stock cars.
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Old 05-14-2007   #34
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Re: Good Deal On Some Slp Runners!!!!!!!!

Also what does siamesing mean?
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Old 05-14-2007   #35
FearThisGTA
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Re: Good Deal On Some Slp Runners!!!!!!!!

I an word side by side. There's no gap between the runners. Kinda like a 400 sbc on there your talkin cylinders.
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 05-14-2007   #36
Fred91GTA
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Re: Good Deal On Some Slp Runners!!!!!!!!

I used Accel large tube runner gaskets. I also ran an Accel Super Ram intake manifold base. Was a real pain in the ass to install.
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Old 05-14-2007   #37
DUBGTA88
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by Fred91GTA
I used Accel large tube runner gaskets. I also ran an Accel Super Ram intake manifold base. Was a real pain in the ass to install.
But will I be able to you them to make the out line for my stock intake base and runners?
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Old 05-14-2007   #38
Fred91GTA
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Re: Good Deal On Some Slp Runners!!!!!!!!

To be honest, the stock intake base won't have enough meat on it to port out to the Accel large tube runners. I would just keep the stock intake port size on the bottom of the runners and port match them as best as possible to the intake manifold.
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Old 05-14-2007   #39
DUBGTA88
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by fearthisgta
I an word side by side. There's no gap between the runners. Kinda like a 400 sbc on there your talkin cylinders.
Is that what siamesing is to have no gap between the runners? Thats what I should try to do with my runners and intake base right? And what is the 400 sbc?
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Old 05-15-2007   #40
DUBGTA88
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Re: Good Deal On Some Slp Runners!!!!!!!!

Quote:
Originally Posted by Fred91GTA
To be honest, the stock intake base won't have enough meat on it to port out to the Accel large tube runners. I would just keep the stock intake port size on the bottom of the runners and port match them as best as possible to the intake manifold.
Ok well ill get them tuesday so ill take a look at everything. If ill get some ideas ill be sure to ask you guy for your opinion. Thank you for everything.
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