finally hit the dyno

[robbie2883]

so when i got the car it only made 182 at the rear wheels. a couple years later and alot of wiring later here we are

547 before running out of fuel pump. backed it down to 501. 93 octane, walbro 255, sard 800cc injectors @ 20psi

there is alot motor to make out of this motor for sure. i'll be swapping to a walbro 400 soon and trying for 600.

VVVV Click for video!!!! VVVV

[RRRRB]

what dyno what turbo?

[robbie2883]

Dynocom dyno. Reads almost the same numbers as a dynojet. Just a tad lower numbers. It's a gt35r

[advan_s13]

what all is done internally? What size gt35r?

[ReganECR33]

nice numbers i dyno'd 607rwhp with my 35r back in the day on a mustang at 31 psi pump/meth, stock head, haltech, with a greddy intake manifold

[robbie2883]

what all is done internally? What size gt35r?

nothing TOO major. stock head, jun crank collar, wisco 8-1 pistons and eagle rods. the 35 is a 82ar turbine housing. twin scroll manifold but turbine housing is standard.

nice numbers i dyno'd 607rwhp with my 35r back in the day on a mustang at 31 psi pump/meth, stock head, haltech, with a greddy intake manifold

nice. i'm going to swap the fuel pump and we are going to push for 600. the 547 was about 22 psi so we are hoping to get 600 around 25-26. we will see

[Nesquick]

well done. I have a rb26 with the same turbo and was wondering a ballpark of where I would end up on different boost settings. Now Im wondering if i should ditch my 255 and upgrade the pump...

[robbie2883]

well done. I have a rb26 with the same turbo and was wondering a ballpark of where I would end up on different boost settings. Now Im wondering if i should ditch my 255 and upgrade the pump...

i would. ditch the 255 and get a walbro 400. you should be good with that and it's the route i am going. here's a flow chart which should help you make up your mind! LOL


and thanks!

[Funktown240]

Did you have your walbro hot wired to the battery? Surprised you made that much power on a 255. Im probably going to go with the Aeromotive 340 direct wired with Bosch EV14 1000's on E85. I have the exact same turbo setup, would be happy with 500 whp.

[RRRRB]

Pretty good power.. what exhaust manifold are you using?

My car should be doing this easy.. and its not! Fml

[robbie2883]

Did you have your walbro hot wired to the battery? Surprised you made that much power on a 255. Im probably going to go with the Aeromotive 340 direct wired with Bosch EV14 1000's on E85. I have the exact same turbo setup, would be happy with 500 whp.

why go to all that trouble for 500? i'm on pump with a single walbro (which outperforms the 340 stealth here's a good read on it http://forums.evolutionm.net/vendor-ser ... iring.html) i would suggest a walbro 400 and pump gas and call it a day

Pretty good power.. what exhaust manifold are you using?

My car should be doing this easy.. and its not! Fml

it's supposedly a top hat. pretty well built but not the greatest, not the worst. tial 44mm open dump as well. what kind of numbers are you making? with what turbo?

[bmxarmy]

Im with RRRB, my old girl only made 335rwhp on a dynojet with 18psi through an hx35. custom exhaust manifold, 650cc injectors, freddy intake stock everything else.

Going to tune it again on the dyno come spring but 335 seemed weak!

Great numbers robbie

[Funktown240]

why go to all that trouble for 500? i'm on pump with a single walbro (which outperforms the 340 stealth here's a good read on it http://forums.evolutionm.net/vendor-ser ... iring.html) i would suggest a walbro 400 and pump gas and call it a day

Hmmm, I already have a walbro 255 installed. Thought the aeromotive would outperform the walbro, I was considering the 340 pump because of the extra fuel needed with E85.

[robbie2883]

look at a walbro 400lph. it flows more than any of the others and is still just an intank. at 90 psi is STILL flows 300lph

[Funktown240]

look at a walbro 400lph. it flows more than any of the others and is still just an intank. at 90 psi is STILL flows 300lph

Looks like I can get away with a walbro 400lph and stock wiring @ 500whp on E85, thanks!

[RRRRB]

Pretty good power.. what exhaust manifold are you using?

My car should be doing this easy.. and its not! Fml

it's supposedly a top hat. pretty well built but not the greatest, not the worst. tial 44mm open dump as well. what kind of numbers are you making? with what turbo?

I made 434whp on a dyno dynamics on 19psi cnc ported head tomei 260 10.25 cams and a 6766. About 16-17 degrees of timing 92 pump

[J2fast]

why go to all that trouble for 500? i'm on pump with a single walbro (which outperforms the 340 stealth here's a good read on it http://forums.evolutionm.net/vendor-ser ... iring.html) i would suggest a walbro 400 and pump gas and call it a day

Hmmm, I already have a walbro 255 installed. Thought the aeromotive would outperform the walbro, I was considering the 340 pump because of the extra fuel needed with E85.

i would not use the walbro 400 on E85... i i went thru 4 of them and they ALL locked up on me.... but they make one just for E85 and it flows more than 400lph. this is the part number F90000267... i can get them for $170 if you want. but just warning you about those 400's they will not last on that E85 and they will not warrnaty them either b/c they say in small print that they are not compatiable with ethanol fuel.

[robbie2883]

good heads up. i didn't realize they had two different ones for e85 and unleaded.

[mixeds14]

The stealh 340 is e85 and race gas competible but upgrading the wires is recomended to compensate for the current it draws. stock power wire would suffice for pump gas. according to ther info.

[ReganECR33]

Pretty good power.. what exhaust manifold are you using?

My car should be doing this easy.. and its not! Fml

it's supposedly a top hat. pretty well built but not the greatest, not the worst. tial 44mm open dump as well. what kind of numbers are you making? with what turbo?

I made 434whp on a dyno dynamics on 19psi cnc ported head tomei 260 10.25 cams and a 6766. About 16-17 degrees of timing 92 pump

what turbo was this on? seems very very low have u physically locked the timing to see if your at the degrees ur ecu think its on?, i made 464rwhp on a mustang dyno at 1bar lightly ported head stock cams gt35r on pump no meth

[RRRRB]

I've logged the timing in Haltech to watch.. Rpm is a little erratic but its not radical enough to be down the power it is.

The turbo is a Precision 6766 (billet 67mm compressor wheel) i have no idea what the issue is with thing, i degree'd the cams and everything, it runs great just isnt making the power.. i know the dyno dynamics reads low, about 40whp lower than a dynojet at that power level.. so on a dynojet its making about 475whp, which i feel is still pretty low for the mods given

[Darius]

I don't think you're down on power. My T04Z was making about 420 whp at 20 psi on pump gas on a SuperFlow dyno, which is about as conservative as it gets. Your engine's 8:1 compression is pretty low and could be a factor. If your cams are degreed, timing and fuel are accurate, it hits target boost, and there are no boost leaks, I don't know of much else you can do to optimize the system's efficiency.

[ReganECR33]

man i just got a 6766 for my rb26 setup(.82 ar t4 divided, ported head, 280 tomei cams super high lift, 6 boost manifold, haltech ps2k, tomei lifters, tomei internals, tomei oil pump etc etc etc) ill tell you what i put down,sorry to disagree with u darius but i think hes WAY WAY low on power, like i said put a timing light on the engine and verify the timing, and like darius said check for boost leaks, their could be a moderate boost leak, tis hard to tell ona large turbo cause they move so much cfm that u cant notice but u loose out big on the dyno graph, check your bov, either way u should have atleast very least 500ish whp and easily make 550rwhp on pump(mustang numbers), and just in case do a compression check, im aiming for 600rwhp at 20 psi with my setup

[RRRRB]

I don't think you're down on power. My T04Z was making about 420 whp at 20 psi on pump gas on a SuperFlow dyno, which is about as conservative as it gets. Your engine's 8:1 compression is pretty low and could be a factor. If your cams are degreed, timing and fuel are accurate, it hits target boost, and there are no boost leaks, I don't know of much else you can do to optimize the system's efficiency.

Yeah ive come to just except this, however i feel it should be doing more, mainly because the head flows 300cfm has bigger valves. Guys are making power like this with stock heads.. made 412whp on a dynojet with a bone stock RB25 head and cams with a 3076r previously.. on about 19-20psi

Now with the ported RB26 head ITBs cams and a much larger turbo it only gained 65ish WHP it was on 18-19ish psi i also have a larger downpipe and exhaust than previously. Bottom end hasnt changed between the 2 setups the compression is lower because of the chamber difference between 25/26 heads and my .060 head gasket.. Just doesnt add up.. a 6766 is a large turbo capable of over 900whp as well so i just had alot higher expectations..

im temped to change cams or try something to help, ive played with cam timing a bit, but i honestly think this thing should be making at least 550whp on pump gas, the head flows enough to support this..

[RRRRB]

man i just got a 6766 for my rb26 setup(.82 ar t4 divided, ported head, 280 tomei cams super high lift, 6 boost manifold, haltech ps2k, tomei lifters, tomei internals, tomei oil pump etc etc etc) ill tell you what i put down,sorry to disagree with u darius but i think hes WAY WAY low on power, like i said put a timing light on the engine and verify the timing, and like darius said check for boost leaks, their could be a moderate boost leak, tis hard to tell ona large turbo cause they move so much cfm that u cant notice but u loose out big on the dyno graph, check your bov, either way u should have atleast very least 500ish whp and easily make 550rwhp on pump(mustang numbers), and just in case do a compression check, im aiming for 600rwhp at 20 psi with my setup

ive checked for leaks, the ITBS were rebuilt during the install, i havent put a light on the car during a dyno pull, however it wasnt wanting anymore timing on the dyno when it was on there... so the timing thing doesnt seem like its an issue.. Im not sure if the rear end gears would cause the dyno to read weird the car has 4.63's in it..

Ive checked compression (dry), every cylinder is within 2-3 psi about 135psi WOT cranking

[ReganECR33]

damn why do u have 4.63's on it i got the stock 4.11's on and i want to goto a 3.6 i think it is from the z32 tt, i duno man something sounds fishy, i hope i make allot more power then you lol,when are you seeing full boost btw?

[ReganECR33]

u sure its just 8.5? and not more

[RRRRB]

u sure its just 8.5? and not more

What are you referring to?

damn why do u have 4.63's on it i got the stock 4.11's on and i want to goto a 3.6 i think it is from the z32 tt, i duno man something sounds fishy, i hope i make allot more power then you lol,when are you seeing full boost btw?

i will probably end up going back to the 4.11's however the car still does 140mph in 4th gear it would do 160 with the 4.11

what sounds fishy?

[ReganECR33]

sorry i ment are u sure u have 8.0 compression and not lower?

[ReganECR33]

when are you seeing fullboost? ur power output should be higher, could also be a dyno setting, i dont remember what dyno i used the other day on my 707rwhp pump gas 2jz, that it would read 390 rwhp car trapped 140, how does the car feel on the streets