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Old 09-21-2018, 09:46 AM   #26
eabras
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Originally Posted by thelostartof View Post
With a stock head, stock manifolds it is going to take a lot lot lot of boost to make 350bhp.
nah, ~30psi is enough
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Old 09-21-2018, 11:11 AM   #27
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Originally Posted by eabras View Post
nah, ~30psi is enough
Your 352whp is on stock head and manifolds at 2 bar? Impressive.
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Old 09-21-2018, 12:02 PM   #28
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Your 352whp is on stock head and manifolds at 2 bar? Impressive.
stock b21et longblock (7.5:1) with a v-cam 90+, na k-jet intake. The rest is bolt-ons and tuning. 98ron, 30psi and 19degrees timing at torque peak. Suprised people in here don't do more with the low compression b21ft's instead of swapping in newer b230's.

*edit:

OP needs a better fuel pump and bigger injectors to reach power goal. I was at 83% dc with siemens 60lb running with a dodge 55psi fpr. And with that much fuel pressure and boost the crappy walbro 255hp wouldn't cut it, so I had to buy a DW300 340lhp pump.

Last edited by eabras; 09-21-2018 at 12:08 PM..
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Old 09-21-2018, 12:29 PM   #29
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Quote:
Originally Posted by eabras View Post
stock b21et longblock (7.5:1) with a v-cam 90+, na k-jet intake. The rest is bolt-ons and tuning. 98ron, 30psi and 19degrees timing at torque peak. Suprised people in here don't do more with the low compression b21ft's instead of swapping in newer b230's.

*edit:

OP needs a better fuel pump and bigger injectors to reach power goal. I was at 83% dc with siemens 60lb running with a dodge 55psi fpr. And with that much fuel pressure and boost the crappy walbro 255hp wouldn't cut it, so I had to buy a DW300 340lhp pump.
Daaaaamn that's a LOT of timing!
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Old 09-21-2018, 03:09 PM   #30
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Quote:
Originally Posted by eabras View Post
stock b21et longblock (7.5:1) with a v-cam 90+, na k-jet intake. The rest is bolt-ons and tuning. 98ron, 30psi and 19degrees timing at torque peak. Suprised people in here don't do more with the low compression b21ft's instead of swapping in newer b230's.

*edit:

OP needs a better fuel pump and bigger injectors to reach power goal. I was at 83% dc with siemens 60lb running with a dodge 55psi fpr. And with that much fuel pressure and boost the crappy walbro 255hp wouldn't cut it, so I had to buy a DW300 340lhp pump.
I'm eventually going to build up a B21FT. I'd like to learn more about your car.
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Old 09-21-2018, 09:47 PM   #31
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Originally Posted by Harlard View Post
Daaaaamn that's a LOT of timing!
That's the beauty of "stone age" low compression

Much timing = much power
Low compression = much timing

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Originally Posted by dl242gt View Post
I'm eventually going to build up a B21FT. I'd like to learn more about your car.
It's just a b21et longblock (similar to you're b21ft) with a v cam, k-jet intake and the siemens deka 60's in the k-jet holes in the head, dodge/bosch 55psi fpr, dw300 intank, 90+ with a holset hy35, 3" exhaust, generic ebay 3" ic, stock dizzy with a accel/jacobs ultracoil controlled by the aftermarket ems. 352whp @ 5662rpm and 345 ft.lb. @ 4947rpm. With bent m-rods, thanks to a faulty cps leading to a bad HG and general abuse before it was changed and then dyno'ed
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Old 09-24-2018, 08:04 AM   #32
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Like the chrome BRI WASTED spark coil & amplifier bracket? WANNA share your source, part #
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Old 09-24-2018, 04:01 PM   #33
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Quote:
Originally Posted by eabras View Post
stock b21et longblock (7.5:1) with a v-cam 90+, na k-jet intake. The rest is bolt-ons and tuning. 98ron, 30psi and 19degrees timing at torque peak.

Suprised people in here don't do more with the low compression b21ft's instead of swapping in newer b230's.

*edit:

OP needs a better fuel pump and bigger injectors to reach power goal. I was at 83% dc with siemens 60lb running with a dodge 55psi fpr. And with that much fuel pressure and boost the crappy walbro 255hp wouldn't cut it, so I had to buy a DW300 340lhp pump.
me too but most people here don't want to make boost.. They seem content with 12-13 and must have never heard the saying "Life begins at 20psi"...
Plus this is America, home of alt-truth and fake news, so everybody says "That's just your opinion...my cousin met a guy at 7-11 whose uncle in ___________(thousand miles aways) siad he knew a guy with a ___________ (whatever) who had 10.5 compression and a __________turbo and he made 450 with a all stock motor with 300,000 miles on it no problem" and that story counts the same to most people as your specifications..

And , everybody brings up that "low comp means it's a dog off boost"..

It is all very strange....
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Old 09-24-2018, 04:06 PM   #34
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Quote:
Originally Posted by Sjeng View Post
Your 352whp is on stock head and manifolds at 2 bar? Impressive.
Volvo did it themselves 35 years ago in their Group A roadracers..Group A mandated ORIGINAL head, intake and exhaust manifolds, stock valve sizes, stock rod and piston dimensions and weight and whatever turbo was homologated and Volvo used a pretty ordinary T3....and the orignal fuel and management system--so K-Jet

Nobody is restricted by those rule here.. 2 bar boost/30 psi cars are just flat hilarious.
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Old 09-26-2018, 02:03 PM   #35
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[QUOTE=John V, outside agitator;5858611]...my cousin met a guy at 7-11 whose uncle in ___________(thousand miles aways) siad he knew a guy with a ___________ (whatever) who had 10.5 compression and a __________turbo and he made 450 with a all stock motor with 300,000 miles on it no problem" QUOTE]

This sounds like every YouTube LS swap video
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Old 10-01-2018, 08:56 PM   #36
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I'm cringing when I see that camshaft on the floor like that...
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