The '87 Grand National put out 276hp, so I figured using the stock or slightly better than stock fuel components would net similar numbers, since we are starting out with a better breathing base engine than the 87 3.8 gm engine. I know people can queze extra boost off of these turbos and get into the high teens and low 20's to get the 1000+hp, but its allot of work getting the boost up like that, heads, cams, exacting exhuast tuning sutff like that. If I can squeze out 10 - 15 psi I would be more than happy with the results.
The '87 Grand National put out 276hp, so I figured using the stock or slightly better than stock fuel components would net similar numbers, since we are starting out with a better breathing base engine than the 87 3.8 gm engine. I know people can queze extra boost off of these turbos and get into the high teens and low 20's to get the 1000+hp, but its allot of work getting the boost up like that, heads, cams, exacting exhuast tuning sutff like that. If I can squeze out 10 - 15 psi I would be more than happy with the results.
1000+ hp from the stock turbo, you may want to look into that some more.
be prepared to put in some work to get a custom single kit done. using stock 9bs would be easier and on a 10:1 (wait what car do you have?) and fwd they feel pretty quick. of course if i ever owned a na and wanted more power i would just sell it and get a tt. they are so cheap now and you dont have to waste time working on it.
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11.4 @ 125 w/DR500, DR Stage III heads, 50 Shot, Weight reductions, and no traction.
Well I am not the one that orginally said that a stock GN turbo would be good for 1000hp, I know that it has been done to GN's with lots of work. Someone else mentioned. I was just asking what parts I would need and if a rebuilt 87 gn turbo would be a good size for this project. Selling this one and putting themoney i would spend in parts to getting a tt awd is a possibliity. Like I said still planning and seening what I can do. First thing I need to do though is figure out how much this will cost me. Not too worried about the exhaust and intake fabrication. its more the other stuff.
Last edited by jedimastermopar : 07-05-2009 at 12:58 PM.
go back and read post #6. you mis-understood what happened. no one said they gn turbo can handle 1000+ hp.
buick would not put a turbo that size on a stock car.
supporting mods can not create lots of power by them self, you get the power from the turbo forcing air into the engine coupled with the correct amount of fuel and tuning. heads, cams, cam gears, etc only allow the turbo to get more of the air into and out of the engine but if the turbo cant flow enough air those mods will not create much more extra power.
turbo and exhaust sizing is the most important part of your build and adequate fuel and tuning should be a given not an extra "mod"
i am still not exactly sure what you want in the end. if you want just some extra power now and you are certain that you wont want more and you are stuck on a single just to be different i would look for the combined flow rates between two 9bs up to two 15gs and look for a single that would flow that. 850 cfm for example. however you also need to look at what psi the turbo is efficient at and much more. there is a lot of work to go into it that is why i would go with what is already been proven. you could pick up twin 13g or 13cs for cheap.
Ok so he was saying the the GN turbo is for 350 ish and the Precision is for 1000+ Certainly not shooting for 1000+, if I can get 350 ish I would be happy. Like I said all I am asking is if anyone here that has run a single turbo what types of turbos would be well suited to provide a modest amount of boost. Pulling 1000 plus is not what i am after, I don't have the coin to spend on all of the other stuff I would need. When I did a turbo on an fi before we used a megasquirt. Has anyone used one of those in an NA to Turbo project?
yes, i believe mr3000 used a megasquirt for an na to t70
i think you are trying to make this harder than it has to be though. there are countless threads on this forum that show you step by step everything you need for a tt setup and tuning with the stock ecu and a simple safc is really easy. stock 9bs are stupid cheap and can make more than 350 crank horse.
Lots of 9b's around for sale used and rebuilt in the states, but I was having a hard time finding any up here in canada, shipping and duty is retarded and wreckers want like 400 bucks each for them as pulls not rebuilt. If anyone can find me a pair of rebuilt 9b's, manifolds and downpipes for under 350 bucks I am all ears.
No doubt a TT would be easier, just turning stones and kicking tires.
oh, didnt know you were in Canada. well if you could find the exh manifolds you could aslo get 13gs, 13cs, or 15gs but it may be hard to get it for less than 350 however it will be hard to do anything for that amount. when you get into a custom setup one thing is for certain, it will cost more than you think. may want to just save a little more and get a setup you can be happy with for a while.
im just giving you my thoughts. nothing wrong with a single setup. im not providing info on it b/c i have not built a custom setup. do you know how to read compressor maps? do you understand ve and cfm flow ratings? may want to start with an investment in a book or seat time in front of a computer. even search this forum there are guys on here that have done custom singles however most of them are not small budget oriented projects.
Well I decided to go to a TT project with 9b's, found a member on here willing to ship them up to the great white north country. I'll start a new thread on the conversion. I'll be in parts gathering mode now. Thanks for all the input guys.
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Re: Single Turbo project
