BrickBoard Archives
The files contained in this listing have been automatically archived from the active forums. Because the vast majority of posts are now in one place, this archive is considered legacy. You should use the SEARCH feature OR choose your topic and select date tabs within the forum you choose.
Building hi perf. turbo from B23E[ALL/1988] posted by Armand on
Thursday, 12 February 1998, at 6:27 a.m.
Hi, my name is Jan Armand Sørlie
I am going to make a 350hp engine from my B23E(136hp)using Garrett t3/t4 turbo and many other nessesary coustum parts.
My question is if the crank can withhold this kind of power, is it the same as the strong ones in B23FT?
Should i use coustum rods or are the stock ones strong enough?
Are turbo stock pistons good enough?
Has the stock intercooler enough capasity?
Any other good ideas?
Re: Building hi perf. turbo from B23E[ALL/1988] posted by chris hibbs on
Thursday, 12 February 1998, at 8:25 a.m.
please send me (or the group) a spec. sheet on how you are going to achieve this HP. Thanks
Re: Building hi perf. turbo from B23E[ALL/1988] posted by Topi on
Thursday, 12 February 1998, at 10:13 a.m.
Good! Finally we get some INTERESTING action here. Keep us posted. 1. Block & crank are the same as B23 Turbo, exept oil return. You can easily make return to the pan through the weld-on fitting. 2. Block & crank can easily handle this power. 3. Rods are way too heavy and weak, get a set of Crowers or Carrillos, or Ferdis (from Sweden). 4. Get forged pistons, JE or Wiseco are the best. Stock Volvo Turbo ones will not see much life after you fire it up... 5. Use # 405 casting heads from 240GT B23E or # 531 rally head from Volvo Original Cup 6. Use bigger valves and dual springs. Intake pressure 100lbs PLUS the amount of boost (many builders forget this and can't understand why intake valve doesn't close ! ) Finally, having being able to see how Toyota got reliable 880HP from 2.1 L 16V IMSA GTP engine, here're some secrects: 1. CR 10:1 (very high for turbo). Cams 300+ / 13mm lift (very radical for turbo) 2. Boost 60 PSI for quafification, 45PSI for race 3. Exhaust was "Extractor" type, 4-2-1 design, like a normal header, 110cm long, joined just before the turbo 4. Twin waste gates, working together, 42mm valves 5. 10 500 RPM max 6. This engine dynoed 230 HP without the boost ! Through the turbo...This engine is one of the finest ever built and is still winning at Pikes Peak (Rod Millen's Celica)
Re: Building hi perf. turbo from B23E[ALL/1988] posted by Keith Hyndes on
Thursday, 12 February 1998, at 3:02 p.m.
My $0.20.
1. You will need a strong gearbox. In Oz you can get kits to fit Toyota gearboxes. The Supra gearbox is designed for approximatly 300bhp, and will do fine.
2. Consider fitting Saab APC as per the Turbobricks page. We have a Saab APC, and it is a very effective system. It automatically allows the best boost to allow for different fuel quality and ambient conditions.
3. Cooling, cooling, cooling. Anything that you can do to cool every heat generating device will help reliability, ie engine, radiator, diff, gearbox. A clean, matt black surface will help. I do not know how strong the diff is, but an oil cooler on it will help.
4. What do you have planned for the suspension to match this perfomance level?
Keith 80/245 pretty stock B21E
94/440 very stock B20F
Re: Building hi perf. turbo from B23E[ALL/1988] posted by Keith Hyndes on
Thursday, 12 February 1998, at 3:15 p.m.
Also......B21ET exhaust valves are Sodium filled.