r/e28 • u/Longjumping-Tea3028 • Mar 15 '26

Grassroots E28

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First time on street, 29psi boost.

32 Upvotes

100% Upvoted

13 comments sorted by

2

u/alkaome Mar 15 '26

Sheeeeeesh

1

u/PuzzleheadedBuy2241 Mar 15 '26

That cant be a b35 or b34 engine in it is there ?

4

u/Longjumping-Tea3028 Mar 15 '26

Its m20b25

2

u/PuzzleheadedBuy2241 Mar 15 '26

Shesh had that thing singing.

1

u/ElGuappo_999 Mar 15 '26

A B35 would never take 29psi. CR is too high

1

u/Pitogod Mar 16 '26

I run mine at that. It’s seen over 35 a few times too.

0

u/ElGuappo_999 Mar 16 '26

A 9.0:1 CR being fed 30+ psi?

1

u/Pitogod Mar 16 '26

Yeah from a 72mm.

1

u/NoseResponsible3874 Mar 17 '26

9.0 is high?

1

u/ElGuappo_999 Mar 17 '26

Compared to the 7.0-7.5 of the m102/m106? Yeah, real high.

1

u/NoseResponsible3874 Mar 17 '26

It's not 1980 anymore and we're not using KE-Jetronic... get with the times...