V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

how much boost can a stock 2.8 take?

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Old May 17, 2011 | 11:11 PM
  #1  
Benwlsn87RS's Avatar
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Car: 1987 Camaro RS
Engine: 2.8l 60* v6
how much boost can a stock 2.8 take?

how much boost can a stock 2.8 take? , any tips? can stock handle 15-18 psi with a good tune?
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Old May 17, 2011 | 11:16 PM
  #2  
90 camaro cj's Avatar
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From: Gilbert, AZ
Car: 1990 camaro RS
Engine: 305 TBI
Transmission: 700r4
Axle/Gears: 2.73
Re: how much boost can a stock 2.8 take?

i heard 10ish tops, if its a good starter motor though and a good tune i dont see it not lasting a little while atleast, if it blows up just do a rebuild. lol
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Old May 18, 2011 | 12:26 AM
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Car: 89 RS 89 iroc 87 firebird
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Axle/Gears: strange s60 /w 3:42's
Re: how much boost can a stock 2.8 take?

10-20-30 psi is all possble. its all in having the right turbo, the right tune
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Old May 18, 2011 | 05:43 PM
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Re: how much boost can a stock 2.8 take?

Mine was happy with 15 psi and a little nitrous for quite a while.
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Old May 18, 2011 | 07:00 PM
  #5  
Benwlsn87RS's Avatar
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Car: 1987 Camaro RS
Engine: 2.8l 60* v6
Re: how much boost can a stock 2.8 take?

alright. because i was thinking about a Rear Mount setup. i heard sts has a universal kit. or for that matter i can probably get the kit they sell for ls1s and it might fit.
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Old May 18, 2011 | 10:16 PM
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From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: how much boost can a stock 2.8 take?

save urself lots and lots of money and ust build ur own tear mount kit.

the most expsensive part will be the oil return pump , the turbo and the oil lines.

any muffler shop can weld the turbo flange onto the end of the ex system were the muffler is
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Old May 18, 2011 | 10:45 PM
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Car: 2006 Cobalt SS/SC
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Axle/Gears: 4.05
Re: how much boost can a stock 2.8 take?

I would highly, I repeat, HIGHLY RECOMMEND NOT doing that. I had this idea before, and asked STS about it. The turbocharger they said would be best for my the V6 was totally the wrong size and would have made boost at probably...10,000rpm. Okay, I'm exaggerating, but it still would have been a terrible turbocharger for a RMT set-up on a V6. The best way I've found to do the RMT set-up is like what project89 suggested. Or, get PaceSetter headers and DynoMaxx cat-back exhaust system, cut the cat-back exhaust pipe at a good place for the turbo, and have a flange welded there for the turbocharger. Also, having the piping ceramic coated should help with heat-retention, and, possibly, improve your spool-up time. I used to be in contact with a guy who had a RMT set-up on a 3400-swapped Cavalier. He was using a Blouch Performance turbocharger with a version of their Dominator 3.0 XTR billet compressor wheels in a TO4E housing, with a T3 Stage 3 .63A/R turbine section. He was making about 310WHP and 430lb-ft of torque with peak boost at 4,000rpm, peak torque at 4,100rpm, and peak horsepower at 4,600rpm. He was running 16-18psi. Hope this helps.
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Old May 19, 2011 | 12:47 AM
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Axle/Gears: strange s60 /w 3:42's
Re: how much boost can a stock 2.8 take?

speak with this seller on ebay , he builds these, the wastegate and turbo are ebay specials , but if u could snag a kit with the piping oil pump and lines without the turbo and wastegate for a cheap price u could score a pretty good deal on a bolt on system

the reson i say see if u can get it without the turbo and wastegate is u can get a wastegate for 50 bucks and a decent sized turbo for the v6 for about 125 bucks

so if he knocks the price down considerably without those items it would be worth it

http://cgi.ebay.com/ebaymotors/REAR-...item3367e2c086
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Old May 22, 2011 | 10:11 PM
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Car: 1987 Camaro RS
Engine: 2.8l 60* v6
Re: how much boost can a stock 2.8 take?

alright, will do.
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