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Pipes
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Pipes

Name : Pipes
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PostSubject: series 1 rebuild   series 1 rebuild EmptySun Dec 11, 2011 9:19 pm

im new to this forum thanx in advance for the help

I have a supercharged series 1 out a 95 buick riviera i have a stage 3 cam, 1:90.1 lifters, a my heads, and supercharger ported and polished.... Im wondering is there any thing else to do as far as porting or polishing? Also i have a custom air2air intercooler im building for it, cooled air intake, 2.5 blower pully. Was thinking bout throttle body spacer and blower spacer but dont know pros or cons of them. Help please trying finish rebuild be for sping...


Also and tips on type of exhaust system i should put with it going all out on this one
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robotennis61
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PostSubject: Re: series 1 rebuild   series 1 rebuild EmptyMon Dec 12, 2011 12:57 am

My advise would be to port the exhaust manifolds.it dont take alot of work.and the benefits are good. I dont know anyone who has a spacer?i've heard they work on other cars,on ours I dont know.are they available?
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PostSubject: Re: series 1 rebuild   series 1 rebuild EmptyMon Dec 12, 2011 4:02 pm

Sinister tune.
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Karma
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PostSubject: Re: series 1 rebuild   series 1 rebuild EmptyMon Dec 12, 2011 4:48 pm

I'm wondering what your cam specs are, since there isn't an off the shelf one for the series one. Especially one designed to be used with 1.9 rockers. And 1.9 rockers.. I've never heard of them for the series one. Who made them? ( I'm assuming by "1:90.1 lifters" you really meant rockers... since lifters are a different thing altogether and are not referred to by 1.9:1)

I'd be interested in seeing the inter-cooler design. Air-2-air is very hard even with the series 2 m90 where you can lift the blower.(though the Australian guys have done it.) What are you intending to do with the m62 since lifting it is a PITA? (alternator bracket bolts to it, injectors are in the LIM which directly get in the way of any kind of inter-cooler plate, etc...)


The m62 blower benefits from smoothing the intake tract, and the triangle can be opened up from being "kinda triangle shaped" to a full triangle. This helps it when you over-spin the blower, which you will with any pulley below 2.8"

The LIM can always benefit from smoothing, especially if you port the heads, be sure to match the LIM runners to the heads.


For exhaust, find yourself an old set of manifolds for the engine, cut/grind off the flanges. Buy a set of headers for the 3800 series 2. Cut their flanges off and have an exhaust shop weld on the S1 flanges. One of primary pipes will have to be cut and extended to match the series one spacing. But bang for buck, it would be best way to improve the exhaust on a series one.

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robotennis61
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PostSubject: Re: series 1 rebuild   series 1 rebuild EmptyMon Dec 12, 2011 5:00 pm

crane cams ,use to stock 'em.now you have to send em a good cam and they will regrind it for $178 + shipping and handling.2 to 3 week turnaround.
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Karma
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PostSubject: Re: series 1 rebuild   series 1 rebuild EmptyMon Dec 12, 2011 5:55 pm

My biggest question was what cam is being used with 1.9 rockers... as even on S2, its only done with 1.8's...

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robotennis61
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PostSubject: Re: series 1 rebuild   series 1 rebuild EmptyMon Dec 12, 2011 6:08 pm

I'll call Yella Terra tomorow and find out. they shoud have all that info?
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Pipes
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PostSubject: Re: series 1 rebuild   series 1 rebuild EmptyTue Dec 13, 2011 8:23 am

I just finished all the reasearch im going to keep stock rockers for cam i tryimg to run ...
As for intercooler setup im going to fab a new fuel rail to fit... Im still tearing the block apart but heads are stuck on... I need them off so theey can be ported asap
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Karma
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PostSubject: Re: series 1 rebuild   series 1 rebuild EmptyTue Dec 13, 2011 9:44 am

When getting at porting the heads, pay special attention to opening up the exhaust side of things. Keep the D shape, but make it bigger overall. Don't let your enthusiasm get out of hand when porting the intake side of things, going too big will loose you velocity, which the series one NEEDs to help offset its smaller valves compared to the series 2. You "could" look into some slightly bigger valves, but the S1 heads have barely enough space for any size increase.

For your custom intercooler, I'd suggest you set up a build thread when you get going on it. Then we can trade design ideas and solutions. There's good expertise on this forum and I might even be-able to help fabricate some bits and pieces, as I have access to a prototype machine shop. The series one is quite the thing to try doing an intercooler with, I've seen many attempt over the years, but so far no real successes. So I'm always excited that someone else is going have a go at it.

Personally, I just scrapped the idea and went with a different blower altogether:
http://rivperformance.editboard.com/t7056p15-one-of-my-back-burner-projects

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