GEN1 PT5862 CEA or a PT5858 CEA

Nigel

Active Member
Jun 16, 2001
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Nassau, NY
low boost?hmmm,i drove one with just a ported head it went 11.5 on 20 psi had 28/32 degrees of timing though.
I was running just about as much boost as I could get short of wiring the waste gate closed. I would start out at about 28-29 lbs, but it would drop off after 4900-5000 rpm. by the traps I was 23-24 around 5300-5400 rpm. The biggest changes left to make would have been a better intercooler and taller tire from what I could tell.
I picked up the 5858 used NIB for a decent price so I figured why not. I don't race, just test and tune, just like to play with the car. So in that context, I think the 5858 is decent upgrade over the 44. If I wanted a solid 10 second car I would have went straight to a 6262.

Back to the OP, if he is only looking to get rid of the surge, the 5858 is an option.
The exhaust housing change is an interesting option. While it doesn't seem to make a difference for peak performance for the 44/49, it has to make a difference at part throttle flow to cure the surge.
 

Nigel

Active Member
Jun 16, 2001
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Nassau, NY
ok ok lol see how my memory is ;)49,410 gears,200 r4,stock cam/motor,ported iron heads with 1.65 td rockers 100lb valve springs,stock ecm/ maf,28 tall drag radials 10.5 3200 protorque lockup,twin m10s with a 42lb inj.rjc power plate,ported stock throttle body.38/3900lbs with stereo.car would go high 6s in the 1/8 100mph,121 mph pump gas alky. later i added a small wet shot and went 6.6 in the 1/8,highest mph slightly over 125 10.6 1/4
Obviously excellent numbers for the 49, I don't think I could have gotten there with my 44.
 

Mr.Spool

Well-Known Member
Nov 6, 2006
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The exhaust housing change is an interesting option. While it doesn't seem to make a difference for peak performance for the 44/49, it has to make a difference at part throttle flow to cure the surge.
it took the surge out of mine,and my friends cars didnt surge with the larger ex housing.
 

Mr.Spool

Well-Known Member
Nov 6, 2006
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I don't think I could have gotten there with my 44.
mt friend with the 44 that went 10.7@125 had heads cam,but he ran 36 degrees of timing and only 25psi.on slicks it would go 1.42 60ft,he was lighter than mine but to this day its the fastest 44 car i have ever seen.most 44/49 cars full weight are solid mid/low 11s with their ducks in order.
 
Nov 14, 2005
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I am trying a .85 exhaust housing .Thank you mr spool Hopefully it will solve my issue. On a side note what does having a bigger turbine but the same size inducer do ? will it spool faster than 1 with the same size wheels?
 

Nigel

Active Member
Jun 16, 2001
647
114
43
51
Nassau, NY
I am trying a .85 exhaust housing .Thank you mr spool Hopefully it will solve my issue. On a side note what does having a bigger turbine but the same size inducer do ? will it spool faster than 1 with the same size wheels?
Give us some feedback on how it works out.